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href="/search/?searchtype=author&query=Adeva%2C+B&start=200" class="pagination-link " aria-label="Page 5" aria-current="page">5 </a> </li> <li><span class="pagination-ellipsis">…</span></li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2502.04013">arXiv:2502.04013</a> <span> [<a href="https://arxiv.org/pdf/2502.04013">pdf</a>, <a href="https://arxiv.org/format/2502.04013">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for resonance-enhanced $CP$ and angular asymmetries in the $螞^+_{c}\to p渭^+渭^-$ decay at LHCb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2502.04013v1-abstract-short" style="display: inline;"> The first measurement of the $CP$ asymmetry of the decay rate ($A_{CP}$) and the $CP$ average ($危A_{\text{FB}}$) and $CP$ asymmetry ($螖A_{\text{FB}}$) of the forward-backward asymmetry in the muon system of $\mathit螞^+_c\to p渭^+渭^-$ decays is reported. The measurement is performed using a data sample of proton-proton collisions, recorded by the LHCb experiment from 2016 to 2018 at a center-of-mass… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.04013v1-abstract-full').style.display = 'inline'; document.getElementById('2502.04013v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2502.04013v1-abstract-full" style="display: none;"> The first measurement of the $CP$ asymmetry of the decay rate ($A_{CP}$) and the $CP$ average ($危A_{\text{FB}}$) and $CP$ asymmetry ($螖A_{\text{FB}}$) of the forward-backward asymmetry in the muon system of $\mathit螞^+_c\to p渭^+渭^-$ decays is reported. The measurement is performed using a data sample of proton-proton collisions, recorded by the LHCb experiment from 2016 to 2018 at a center-of-mass energy of 13$\text{ TeV}$, which corresponds to an integrated luminosity of 5.4$\text{ fb}^{-1}$. The asymmetries are measured in two regions of dimuon mass near the $蠁$-meson mass peak. The dimuon-mass integrated results are \begin{align*} A_{CP} &= (-1.1 \pm 4.0 \pm 0.5)\%,\\ 危A_{\text{FB}} &= (\phantom{-}3.9 \pm 4.0 \pm 0.6)\%,\\ 螖A_{\text{FB}} &= (\phantom{-}3.1 \pm 4.0 \pm 0.4)\%, \end{align*} where the first uncertainty is statistical and the second systematic. The results are consistent with the conservation of $CP$ symmetry and the Standard Model expectations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2502.04013v1-abstract-full').style.display = 'none'; document.getElementById('2502.04013v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3473/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-051, CERN-EP-2024-340 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.14943">arXiv:2501.14943</a> <span> [<a href="https://arxiv.org/pdf/2501.14943">pdf</a>, <a href="https://arxiv.org/format/2501.14943">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Evidence for $B^-\rightarrow D^{**0}蟿^-\overline{谓_蟿}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.14943v1-abstract-short" style="display: inline;"> The first evidence for the decay $B^-\rightarrow D^{**0}蟿^-\overline{谓_蟿}$ is obtained using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$ , at centre-of-mass energies of 7, 8 and 13 Tev. Here, the $D^{**0}$ meson represents any of the three excited charm mesons $D_{1}(2420)^{0}$, $D_{2}^{*}(2460)^{0}$, and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14943v1-abstract-full').style.display = 'inline'; document.getElementById('2501.14943v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.14943v1-abstract-full" style="display: none;"> The first evidence for the decay $B^-\rightarrow D^{**0}蟿^-\overline{谓_蟿}$ is obtained using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$ , at centre-of-mass energies of 7, 8 and 13 Tev. Here, the $D^{**0}$ meson represents any of the three excited charm mesons $D_{1}(2420)^{0}$, $D_{2}^{*}(2460)^{0}$, and $D_{1}^{'}(2400)^{0}$. The $B^-\rightarrow D^{**0}蟿^-\overline{谓_蟿}$ signal is measured with a significance of 3.5 $蟽$, including systematic uncertainties. The combined branching fraction $BR(B^-\rightarrow D^{**0}_{1,2}蟿^-\overline{谓_蟿})\times BR(D^{**0}_{1,2}\rightarrow D^{*+}蟺^-)$, where $D^{**0}_{1,2}$ denotes both $D_{1}(2420)^{0}$ and $D_{2}^{*}(2460)^{0}$ contributions, is measured to be $(0.051\pm0.013(stat)\pm 0.006(syst)\pm 0.009(\rm{ext}) )\%$, where the last uncertainty reflects that of the branching fraction of the normalisation channel $B^-\rightarrow D^{**0}_{1,2}D_s^{(*)-}$. The ratio between the tauonic and muonic semileptonic $B$ decays, with the latter taken from world average values, is also determined and found to be ${\cal R}(D^{**0}_{1,2})=0.13\pm0.03(stat)\pm0.01(syst)\pm0.02\,(\rm{ext})$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.14943v1-abstract-full').style.display = 'none'; document.getElementById('2501.14943v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3300/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-037, CERN-EP-2024-341 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.12779">arXiv:2501.12779</a> <span> [<a href="https://arxiv.org/pdf/2501.12779">pdf</a>, <a href="https://arxiv.org/format/2501.12779">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the $螞_b^0 \to J/蠄螢^- K^+$ and $螢_b^0 \to J/蠄螢^- 蟺^+$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1126 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.12779v1-abstract-short" style="display: inline;"> The first observation of the $螢_b^0 \to J/蠄螢^- 蟺^+$ decay and the most precise measurement of the branching fraction of the $螞_b^0 \to J/蠄螢^- K^+$ decay are reported, using proton-proton collision data from the LHCb experiment collected in 2016--2018 at a centre-of-mass energy of 13~TeV, corresponding to an integrated luminosity of 5.4~fb$^{-1}$. Using the $螞_b^0 \to J/蠄螞$ and $螢_b^0 \to J/蠄螢^-$ d… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.12779v1-abstract-full').style.display = 'inline'; document.getElementById('2501.12779v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.12779v1-abstract-full" style="display: none;"> The first observation of the $螢_b^0 \to J/蠄螢^- 蟺^+$ decay and the most precise measurement of the branching fraction of the $螞_b^0 \to J/蠄螢^- K^+$ decay are reported, using proton-proton collision data from the LHCb experiment collected in 2016--2018 at a centre-of-mass energy of 13~TeV, corresponding to an integrated luminosity of 5.4~fb$^{-1}$. Using the $螞_b^0 \to J/蠄螞$ and $螢_b^0 \to J/蠄螢^-$ decays as normalisation channels, the ratios of branching fractions are measured to be: \[ \frac{\mathcal{B}(螞_b^0 \to J/蠄螢^- K^+)}{\mathcal{B}(螞_b^0 \to J/蠄螞)} = (1.17 \pm 0.14 \pm 0.08)\times 10^{-2} \, , \] \[ \frac{\mathcal{B}(螢_b^0 \to J/蠄螢^- 蟺^+)}{\mathcal{B}(螢_b^0 \to J/蠄螢^-)} = (11.9 \pm 1.4 \pm 0.6)\times 10^{-2}\, , \] where the first uncertainty is statistical and the second systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.12779v1-abstract-full').style.display = 'none'; document.getElementById('2501.12779v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3479/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-337 LHCb-PAPER-2024-049 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.12611">arXiv:2501.12611</a> <span> [<a href="https://arxiv.org/pdf/2501.12611">pdf</a>, <a href="https://arxiv.org/format/2501.12611">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the multiplicity dependence of $\mit违$ production ratios in $pp$ collisions at $\sqrt{s}=13$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.12611v2-abstract-short" style="display: inline;"> The $\mit违(\mathrm{2}S)$ and $\mit违(\mathrm{3}S)$ production cross-sections are measured relative to that of the $\mit违(\mathrm{1}S)$ meson, as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of $13$ TeV. The measurement uses data collected by the LHCb experiment in 2018 corresponding to an integrated luminosity of 2 $\text{fb}^{-1}$. Both the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.12611v2-abstract-full').style.display = 'inline'; document.getElementById('2501.12611v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.12611v2-abstract-full" style="display: none;"> The $\mit违(\mathrm{2}S)$ and $\mit违(\mathrm{3}S)$ production cross-sections are measured relative to that of the $\mit违(\mathrm{1}S)$ meson, as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of $13$ TeV. The measurement uses data collected by the LHCb experiment in 2018 corresponding to an integrated luminosity of 2 $\text{fb}^{-1}$. Both the $\mit违(\mathrm{2}S)$-to-$\mit违(\mathrm{1}S)$ and $\mit违(\mathrm{3}S)$-to-$\mit违(\mathrm{1}S)$ cross-section ratios are found to decrease significantly as a function of event multiplicity, with the $\mit违(\mathrm{3}S)$-to-$\mit违(\mathrm{1}S)$ ratio showing a steeper decline towards high multiplicity. This hierarchy is qualitatively consistent with the comover model predictions, indicating that final-state interactions play an important role in bottomonia production in high-multiplicity events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.12611v2-abstract-full').style.display = 'none'; document.getElementById('2501.12611v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1782/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-038, CERN-EP-2024-318 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.11635">arXiv:2501.11635</a> <span> [<a href="https://arxiv.org/pdf/2501.11635">pdf</a>, <a href="https://arxiv.org/format/2501.11635">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for charge-parity violation in semileptonically tagged $D^{0} \to K^{+} 蟺^{-}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.11635v1-abstract-short" style="display: inline;"> An analysis of the flavour oscillations of the charmed neutral meson is presented. The ratio of $D^{0} \to K^{+} 蟺^{-}$ and $D^{0} \to K^{-} 蟺^{+}$ decay rates is measured as a function of the decay time of the $D^{0}$ meson and compared with the charge-conjugated system to search for charge-parity violation. The meson flavour at production is double-tagged by the charges of the muon and pion in t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.11635v1-abstract-full').style.display = 'inline'; document.getElementById('2501.11635v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.11635v1-abstract-full" style="display: none;"> An analysis of the flavour oscillations of the charmed neutral meson is presented. The ratio of $D^{0} \to K^{+} 蟺^{-}$ and $D^{0} \to K^{-} 蟺^{+}$ decay rates is measured as a function of the decay time of the $D^{0}$ meson and compared with the charge-conjugated system to search for charge-parity violation. The meson flavour at production is double-tagged by the charges of the muon and pion in the preceding $\overline{B} \to D^{*}(2010)^{+} 渭^{-} X$ and ${{D^{*}(2010)^{+}} \to D^{0}蟺^{+}}$ decays, respectively. These decays are selected from proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of ${13\,\text{TeV}}$ and corresponding to an integrated luminosity of ${5.4\,\text{fb}^{-1}}$. The flavour oscillation parameters, relating to the differences in mass and width of the mass eigenstates, are found to be ${y^\prime=(5.8\pm1.6)\times10^{-3}}$ and ${(x^\prime)^2=(0.0\pm1.2)\times10^{-4}}$. No evidence for charge-parity violation is seen either in the flavour oscillations or in the decay, where the direct charge-parity asymmetry is measured to be ${A_{D}=(2.3\pm1.7)\,{\%}}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.11635v1-abstract-full').style.display = 'none'; document.getElementById('2501.11635v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3260/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-044, CERN-EP-2024-319 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2501.06483">arXiv:2501.06483</a> <span> [<a href="https://arxiv.org/pdf/2501.06483">pdf</a>, <a href="https://arxiv.org/format/2501.06483">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Study of light-meson resonances decaying to $K^0_{\rm S} K 蟺$ in the $B \to (K^0_{\rm S} K 蟺) K$ channels </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2501.06483v1-abstract-short" style="display: inline;"> A study is presented of $B^+ \to K^0_{\rm S} K^- 蟺^+ K^-$ and $B^+ \to K^0_{\rm S} K^+ 蟺^- K^+$ decays based on the analysis of proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9 fb^{-1}$. The $K^0_{\rm S} K 蟺$ invariant-mass distributions of both $B^+$ decay modes show, in the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.06483v1-abstract-full').style.display = 'inline'; document.getElementById('2501.06483v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.06483v1-abstract-full" style="display: none;"> A study is presented of $B^+ \to K^0_{\rm S} K^- 蟺^+ K^-$ and $B^+ \to K^0_{\rm S} K^+ 蟺^- K^+$ decays based on the analysis of proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9 fb^{-1}$. The $K^0_{\rm S} K 蟺$ invariant-mass distributions of both $B^+$ decay modes show, in the $m(K^0_{\rm S} K 蟺)<1.85$ GeV mass region, a rich spectrum of light-meson resonances, resolved using an amplitude analysis. A complex mixture of $J^{PC}=0^{-+}, 1^{++}$ and $1^{+-}$ resonances is observed, dominated by $畏(1405)$, $畏(1470)$, $畏(1760)$, $f_1(1285)$, $f_1(1420)$ and $h_1(1405)$ resonances. The $K^0_{\rm S} K 蟺$ Dalitz plots are dominated by asymmetric crossing $K^* \bar K$ bands which are different for the two $B^+$ decay modes. This is due to a different interference pattern between the $1^{++}$ and $1^{+-}$ amplitudes in the two channels. Branching fractions are measured for each resonant contribution. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.06483v1-abstract-full').style.display = 'none'; document.getElementById('2501.06483v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-045.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-045,CERN-EP-2024-329 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.14074">arXiv:2412.14074</a> <span> [<a href="https://arxiv.org/pdf/2412.14074">pdf</a>, <a href="https://arxiv.org/format/2412.14074">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of $CP$ asymmetry in $B_s^0 \to D_s^{\mp} K^{\pm}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1116 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.14074v2-abstract-short" style="display: inline;"> A measurement of the $CP$-violating parameters in $B_s^0 \to D_s^{\mp} K^{\pm}$ decays is reported, based on the analysis of proton-proton collision data collected by the LHCb experiment corresponding to an integrated luminosity of $6\,\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13 \,\mathrm{TeV}$. The measured parameters are $C_f = 0.791 \pm 0.061 \pm 0.022$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.14074v2-abstract-full').style.display = 'inline'; document.getElementById('2412.14074v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.14074v2-abstract-full" style="display: none;"> A measurement of the $CP$-violating parameters in $B_s^0 \to D_s^{\mp} K^{\pm}$ decays is reported, based on the analysis of proton-proton collision data collected by the LHCb experiment corresponding to an integrated luminosity of $6\,\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13 \,\mathrm{TeV}$. The measured parameters are $C_f = 0.791 \pm 0.061 \pm 0.022$, $A_f^{螖螕} = -0.051 \pm 0.134 \pm 0.058$, $A_{\overline{f}}^{螖螕} = -0.303 \pm 0.125 \pm 0.055$, $S_f = -0.571 \pm 0.084 \pm 0.023$ and $S_{\overline{f}} = -0.503 \pm 0.084 \pm 0.025$, where the first uncertainty is statistical and the second systematic. Together with the value of the Bs mixing phase $-2尾_s$, these parameters are used to obtain a measurement of the CKM angle $纬$ equal to $ (74\pm12)^\circ$ modulo $180^{\circ}$, where the uncertainty contains both statistical and systematic contributions. This result is combined with the previous LHCb measurement in this channel using $3\,\mathrm{fb}^{-1}$ resulting in a determination of $纬= (81^{+12}_{-11})^\circ$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.14074v2-abstract-full').style.display = 'none'; document.getElementById('2412.14074v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3575/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-020, CERN-EP-2024-219 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.13958">arXiv:2412.13958</a> <span> [<a href="https://arxiv.org/pdf/2412.13958">pdf</a>, <a href="https://arxiv.org/format/2412.13958">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of $CP$ asymmetries in $螞_b^0\to ph^{-}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1125 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.13958v1-abstract-short" style="display: inline;"> A search for $CP$ violation in $螞_b^0\rightarrow pK^-$ and $螞_b^0\rightarrow p蟺^-$ decays is presented using the full Run 1 and Run 2 data samples of $pp$ collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$ at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the $CP$-violating asymmetries are measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.13958v1-abstract-full').style.display = 'inline'; document.getElementById('2412.13958v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.13958v1-abstract-full" style="display: none;"> A search for $CP$ violation in $螞_b^0\rightarrow pK^-$ and $螞_b^0\rightarrow p蟺^-$ decays is presented using the full Run 1 and Run 2 data samples of $pp$ collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$ at center-of-mass energies of 7, 8, and 13 TeV. For the Run 2 data sample, the $CP$-violating asymmetries are measured to be $A_{CP}^{pK^-} = (-1.4 \pm 0.7 \pm 0.4)\%$ and $A_{CP}^{p蟺^-} = (0.4 \pm 0.9 \pm 0.4)\%$, where the first uncertainty is statistical and the second is systematic. Following significant improvements in the evaluation of systematic uncertainties compared to the previous LHCb measurement, the Run 1 dataset is reanalyzed to update the corresponding results. When combining the Run 2 and updated Run 1 measurements, the final results are found to be $A_{CP}^{pK^-} = (-1.1 \pm 0.7 \pm 0.4)\%$ and $A_{CP}^{p蟺^-} = (0.2 \pm 0.8 \pm 0.4)\%$, constituting the most precise measurements of these asymmetries to date. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.13958v1-abstract-full').style.display = 'none'; document.getElementById('2412.13958v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3533/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-048, CERN-EP-2024-330 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.11645">arXiv:2412.11645</a> <span> [<a href="https://arxiv.org/pdf/2412.11645">pdf</a>, <a href="https://arxiv.org/format/2412.11645">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Test of lepton flavour universality with $B^+ \to K^+蟺^+蟺^-\ell^+\ell^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.11645v1-abstract-short" style="display: inline;"> The first test of lepton flavour universality between muons and electrons using $B^+ \to K^+蟺^+蟺^-\ell^+\ell^-$ ($\ell=e,渭$) decays is presented. The measurement is performed with data from proton-proton collisions collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9\mathrm{fb}^{-1}$. The ratio of branching fractions betwee… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.11645v1-abstract-full').style.display = 'inline'; document.getElementById('2412.11645v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.11645v1-abstract-full" style="display: none;"> The first test of lepton flavour universality between muons and electrons using $B^+ \to K^+蟺^+蟺^-\ell^+\ell^-$ ($\ell=e,渭$) decays is presented. The measurement is performed with data from proton-proton collisions collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of $9\mathrm{fb}^{-1}$. The ratio of branching fractions between $B^+ \to K^+蟺^+蟺^-e^+e^-$ and $B^+ \to K^+蟺^+蟺^-渭^+渭^-$decays is measured in the dilepton invariant-mass-squared range $1.1 < q^2 < 7.0~\mathrm{GeV}^2/c^4$ and is found to be $R_{K蟺蟺}^{-1} = 1.31^{+0.18}_{-0.17} \;(\mathrm{stat})\;^{+0.12}_{-0.09} \;(\mathrm{syst})$, in agreement with the Standard Model prediction. The first observation of the $B^+ \to K^+蟺^+蟺^-e^+e^-$ decay is also reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.11645v1-abstract-full').style.display = 'none'; document.getElementById('2412.11645v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1606/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-046, CERN-EP-2024-312 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.09414">arXiv:2412.09414</a> <span> [<a href="https://arxiv.org/pdf/2412.09414">pdf</a>, <a href="https://arxiv.org/format/2412.09414">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for $D^0$ meson decays to $蟺^+ 蟺^- e^+ e^-$ and $K^+ K^- e^+ e^-$ final states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1125 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.09414v2-abstract-short" style="display: inline;"> A search for $D^0$ meson decays to the $蟺^+蟺^-e^+e^-$ and $K^+K^-e^+e^-$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. The decay $D^0 \rightarrow 蟺^+蟺^-e^+e^-$ is observed for the first time when requiring that the two electrons are consistent with… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.09414v2-abstract-full').style.display = 'inline'; document.getElementById('2412.09414v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.09414v2-abstract-full" style="display: none;"> A search for $D^0$ meson decays to the $蟺^+蟺^-e^+e^-$ and $K^+K^-e^+e^-$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. The decay $D^0 \rightarrow 蟺^+蟺^-e^+e^-$ is observed for the first time when requiring that the two electrons are consistent with coming from the decay of a $蠁$ or $蟻^0/蠅$ meson. The corresponding branching fractions are measured relative to the $D^0 \rightarrow K^-蟺^-[e^+e^-]_{蟻^0/蠅}$ decay, where the two electrons are consistent with coming from the decay of a $蟻^0$ or $蠅$ meson. No evidence is found for the $D^0 \rightarrow K^+K^-e^+e^-$ decay and world-best limits are set on its branching fraction. The results are compared to, and found to be consistent with, the branching fractions of the $D^0 \rightarrow 蟺^+蟺^-渭^+渭^-$ and $D^0 \rightarrow K^+K^-渭^+渭^-$ decays recently measured by LHCb and confirm lepton universality at the current precision. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.09414v2-abstract-full').style.display = 'none'; document.getElementById('2412.09414v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1611/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-047, CERN-EP-2024-307 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.19781">arXiv:2411.19781</a> <span> [<a href="https://arxiv.org/pdf/2411.19781">pdf</a>, <a href="https://arxiv.org/format/2411.19781">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the open-charm tetraquark state $T_{cs 0}^{*}(2870)^0$ in the $B^- \rightarrow D^- D^0 K_\mathrm{S}^0$ decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1128 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.19781v2-abstract-short" style="display: inline;"> An amplitude analysis of $B^-\rightarrow D^- D^0 K_\mathrm{S}^0$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13$\mathrm{\,Te\kern -0.1em V}$. A resonant structure of spin-parity $0^+$ is observed in the $D^0 K_\mathrm{S}^0$ invariant-mass spectrum w… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.19781v2-abstract-full').style.display = 'inline'; document.getElementById('2411.19781v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.19781v2-abstract-full" style="display: none;"> An amplitude analysis of $B^-\rightarrow D^- D^0 K_\mathrm{S}^0$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$, collected with the LHCb detector at center-of-mass energies of 7, 8, and 13$\mathrm{\,Te\kern -0.1em V}$. A resonant structure of spin-parity $0^+$ is observed in the $D^0 K_\mathrm{S}^0$ invariant-mass spectrum with a significance of $5.3\,蟽$. The mass and width of the state, modeled with a Breit$-$Wigner lineshape, are determined to be $2883\pm11\pm8\mathrm{\,Me\kern -0.1em V\!/}c^2$ and $87_{-47}^{+22}\pm17\mathrm{\,Me\kern -0.1em V}$ respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark state $T_{cs 0}^{*}(2870)^0$ observed previously in the $D^+ K^-$ final state of the $B^-\rightarrow D^- D^+ K^-$ decay. This result confirms the existence of the $T_{cs 0}^{*}(2870)^0$ state in a new decay mode. The $T_{cs1}^{*}(2900)^0$ state, reported in the $B^-\rightarrow D^- D^+ K^-$ decay, is also searched for in the $D^0 K_\mathrm{S}^0$ invariant-mass spectrum of the $B^- \rightarrow D^- D^0 K_\mathrm{S}^0$ decay, without finding evidence for it. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.19781v2-abstract-full').style.display = 'none'; document.getElementById('2411.19781v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3162/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-040, CERN-EP-2024-287 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.15441">arXiv:2411.15441</a> <span> [<a href="https://arxiv.org/pdf/2411.15441">pdf</a>, <a href="https://arxiv.org/format/2411.15441">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Study of $\it螞_{\it{b}}^\rm{0}$ and $\it螢_{\it{b}}^\rm{0}$ decays to $\it螞 h^+h^{'-}$ and evidence for $CP$ violation in $\it螞_{\it{b}}^\rm{0}\to\it螞 K^+K^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1129 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.15441v1-abstract-short" style="display: inline;"> A study of $\it螞_{\it{b}}^\rm{0}$ and $\it螢_{\it{b}}^\rm{0}$ decays to $\it螞 h^{+} h^{\prime -}$ $(h^{(\prime)}=蟺, K)$ is performed using $pp$ collision data collected by the LHCb experiment during LHC Runs 1$-$2, corresponding to an integrated luminosity of $9~\rm{fb}^{-1}$. The branching fractions for these decays are measured using the $\it螞_{\it{b}}^\rm{0}\to\it螞_{\it{c}}^+(\to\it螞蟺^+)蟺^-$ dec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.15441v1-abstract-full').style.display = 'inline'; document.getElementById('2411.15441v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.15441v1-abstract-full" style="display: none;"> A study of $\it螞_{\it{b}}^\rm{0}$ and $\it螢_{\it{b}}^\rm{0}$ decays to $\it螞 h^{+} h^{\prime -}$ $(h^{(\prime)}=蟺, K)$ is performed using $pp$ collision data collected by the LHCb experiment during LHC Runs 1$-$2, corresponding to an integrated luminosity of $9~\rm{fb}^{-1}$. The branching fractions for these decays are measured using the $\it螞_{\it{b}}^\rm{0}\to\it螞_{\it{c}}^+(\to\it螞蟺^+)蟺^-$ decay as control channel. The decays $\it螞_{\it{b}}^\rm{0}\to\it螞蟺^+蟺^-$ and $\it螢_{\it{b}}^\rm{0}\to\it螞K^-蟺^+$ are observed for the first time. For decay modes with sufficient signal yields, $CP$ asymmetries are measured in the full and localized regions of the final-state phase space. Evidence is found for $CP$ violation in the $\it螞_{\it{b}}^\rm{0}\to\it螞K^+K^-$ decay, interpreted as originating primarily from an asymmetric $\it螞_{\it{b}}^\rm{0} \to \it{N}^{*+} \it{K}^-$ decay amplitude. The measured $CP$ asymmetries for the other decays are compatible with zero. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.15441v1-abstract-full').style.display = 'none'; document.getElementById('2411.15441v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-043.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-043, CERN-EP-2024-281 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.12178">arXiv:2411.12178</a> <span> [<a href="https://arxiv.org/pdf/2411.12178">pdf</a>, <a href="https://arxiv.org/format/2411.12178">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> First evidence for direct CP violation in beauty to charmonium decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.12178v2-abstract-short" style="display: inline;"> The $C\!P$ asymmetry and branching fraction of the CKM-suppressed decay $B^+\!\to J\mskip -3mu/\mskip -2mu蠄\,蟺^+$ are precisely measured relative to the favoured decay $B^+\!\to J\mskip -3mu/\mskip -2mu蠄\,K^+$, using a sample of proton-proton collision data corresponding to an integrated luminosity of $5.4~\mathrm{fb}^{-1}$ recorded at center-of-mass energy of $13~\mathrm{TeV}$ during 2016--2018.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.12178v2-abstract-full').style.display = 'inline'; document.getElementById('2411.12178v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.12178v2-abstract-full" style="display: none;"> The $C\!P$ asymmetry and branching fraction of the CKM-suppressed decay $B^+\!\to J\mskip -3mu/\mskip -2mu蠄\,蟺^+$ are precisely measured relative to the favoured decay $B^+\!\to J\mskip -3mu/\mskip -2mu蠄\,K^+$, using a sample of proton-proton collision data corresponding to an integrated luminosity of $5.4~\mathrm{fb}^{-1}$ recorded at center-of-mass energy of $13~\mathrm{TeV}$ during 2016--2018. The results of the $C\!P$ asymmetry difference and branching fraction ratio are \begin{align*} 螖\mathcal{A}^{C\!P} &\equiv \mathcal{A}^{C\!P}(B^+ \to J\mskip -3mu/\mskip -2mu蠄\,蟺^+) - \mathcal{A}^{C\!P}(B^+ \to J\mskip -3mu/\mskip -2mu蠄\,K^+) = (1.29 \pm 0.49 \pm 0.08) \times 10^{-2}, \end{align*} \begin{equation*} \mathcal{R}_{蟺/K} \equiv \frac{\mathcal{B}(B^+ \!\to J\mskip -3mu/\mskip -2mu蠄\,蟺^+)}{\mathcal{B}(B^+ \!\to J\mskip -3mu/\mskip -2mu蠄\,K^+)} = (3.852 \pm 0.022 \pm 0.018) \times 10^{-2}. \end{equation*} where the first uncertainties are statistical and the second systematic. A combination with previous LHCb results based on data collected at $7$ and $8~\mathrm{TeV}$ in 2011 and 2012 yields $螖\mathcal{A}^{C\!P} = (1.42 \pm 0.43 \pm 0.08) \times 10^{-2}$ and $\mathcal{R}_{蟺/K} = (3.846 \pm 0.018 \pm 0.018) \times 10^{-2}$. The combined $螖\mathcal{A}^{C\!P}$ value deviates from zero by 3.2 standard deviations, providing the first evidence for direct $C\!P$ violation in the amplitudes of beauty decays to charmonium final states. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.12178v2-abstract-full').style.display = 'none'; document.getElementById('2411.12178v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 2 figures, no conference or journal information All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1623/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-031 CERN-EP-2024-286 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.10219">arXiv:2411.10219</a> <span> [<a href="https://arxiv.org/pdf/2411.10219">pdf</a>, <a href="https://arxiv.org/format/2411.10219">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Constraints on the photon polarisation in $b \to s 纬$ transitions using $B_s^0 \rightarrow 蠁e^+e^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1120 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.10219v2-abstract-short" style="display: inline;"> An angular analysis of the $B_s^0 \rightarrow 蠁e^+e^-$ decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of $9\,{\rm fb}^{-1}$ at centre-of-mass energies of 7, 8 and $13\,{\rm TeV}$. The analysis is performed in the very low dielectron invariant mass-squared region between $0.0009$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.10219v2-abstract-full').style.display = 'inline'; document.getElementById('2411.10219v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.10219v2-abstract-full" style="display: none;"> An angular analysis of the $B_s^0 \rightarrow 蠁e^+e^-$ decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of $9\,{\rm fb}^{-1}$ at centre-of-mass energies of 7, 8 and $13\,{\rm TeV}$. The analysis is performed in the very low dielectron invariant mass-squared region between $0.0009$ and $0.2615\,{\rm GeV}^2\!/c^4$. The longitudinal polarisation fraction of the $蠁$ meson is measured to be less than $11.5\%$ at $90\%$ confidence level. The $A_{\mathrm{T}}^{\mathcal{R}e C\!P}$ observable, which is related to the lepton forward-backward asymmetry, is measured to be $0.116 \pm 0.155 \pm 0.006$, where the first uncertainty is statistical and the second systematic. The transverse asymmetries, $A_{\mathrm{T}}^{(2)}$ and $A_{\mathrm{T}}^{\mathcal{I}m C\!P}$, which are sensitive to the virtual photon polarisation, are found to be $-0.045 \pm 0.235 \pm 0.014$ and $0.002 \pm 0.247 \pm 0.016$, respectively. The results are consistent with Standard Model predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.10219v2-abstract-full').style.display = 'none'; document.getElementById('2411.10219v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">21 pages, 4 figures. All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3433/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-030, CERN-EP-2024-276 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.09343">arXiv:2411.09343</a> <span> [<a href="https://arxiv.org/pdf/2411.09343">pdf</a>, <a href="https://arxiv.org/format/2411.09343">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of $蠁(1020)$ meson production in fixed-target $\textit{p}$Ne collisions at $\sqrt{s_{NN}}$ = 68.5 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1127 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.09343v1-abstract-short" style="display: inline;"> The first measurement of $蠁(1020)$ meson production in fixed-target $p$Ne collisions at $\sqrt{s_{NN}}=68.5$ GeV is presented. The $蠁(1020)$ mesons are reconstructed in their $K^{+}K^{-}$ decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of $21.7 \pm 1.4$ nb$^{-1}$, collected by the LHCb detector at CERN. The $蠁(1020)$ producti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.09343v1-abstract-full').style.display = 'inline'; document.getElementById('2411.09343v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.09343v1-abstract-full" style="display: none;"> The first measurement of $蠁(1020)$ meson production in fixed-target $p$Ne collisions at $\sqrt{s_{NN}}=68.5$ GeV is presented. The $蠁(1020)$ mesons are reconstructed in their $K^{+}K^{-}$ decay in a data sample consisting of proton collisions on neon nuclei at rest, corresponding to an integrated luminosity of $21.7 \pm 1.4$ nb$^{-1}$, collected by the LHCb detector at CERN. The $蠁(1020)$ production cross-section in the centre-of-mass rapidity range of $-1.8<y^*<0$ and transverse momentum range of $800<p_{T}<6500$ MeV/c is found to be $蟽=182.7\pm2.7~\text{(stat.)}\pm14.1~\text{(syst)}~渭$b/nucleon. A double-differential measurement of the cross-section is also provided in four regions of rapidity and six regions of transverse momentum of the $蠁(1020)$ meson and compared with the predictions from Pythia and EPOS4, which are found to underestimate the experimental values. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.09343v1-abstract-full').style.display = 'none'; document.getElementById('2411.09343v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3673/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-036, CERN-EP-2024-274 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.05669">arXiv:2411.05669</a> <span> [<a href="https://arxiv.org/pdf/2411.05669">pdf</a>, <a href="https://arxiv.org/format/2411.05669">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the $蠄(2S)$ to $J/蠄$ cross-section ratio as a function of centrality in PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1128 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.05669v1-abstract-short" style="display: inline;"> The dissociation of quarkonium states with different binding energies produced in heavy-ion collisions is a powerful probe for investigating the formation and properties of the quark-gluon plasma. The ratio of production cross-sections of $蠄(2S)$ and $J/蠄$ mesons times the ratio of their branching fractions into the dimuon final state is measured as a function of centrality using data collected by… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.05669v1-abstract-full').style.display = 'inline'; document.getElementById('2411.05669v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.05669v1-abstract-full" style="display: none;"> The dissociation of quarkonium states with different binding energies produced in heavy-ion collisions is a powerful probe for investigating the formation and properties of the quark-gluon plasma. The ratio of production cross-sections of $蠄(2S)$ and $J/蠄$ mesons times the ratio of their branching fractions into the dimuon final state is measured as a function of centrality using data collected by the LHCb detector in PbPb collisions at $\sqrt{s_{\text{NN}}}$ = 5.02 TeV. The measured ratio shows no dependence on the collision centrality, and is compared to the latest theory predictions and to the recent measurements in literature. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.05669v1-abstract-full').style.display = 'none'; document.getElementById('2411.05669v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-041.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-272, LHCb-PAPER-2024-041 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.03399">arXiv:2411.03399</a> <span> [<a href="https://arxiv.org/pdf/2411.03399">pdf</a>, <a href="https://arxiv.org/format/2411.03399">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Study of $D_{s1}(2460)^{+}\to D_{s}^{+}蟺^{+}蟺^{-}$ in $B\to {\bar{D}}^{(*)}D_{s}^{+}蟺^{+}蟺^{-}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1124 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2411.03399v1-abstract-short" style="display: inline;"> An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}蟺^{+}蟺^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}蟺^{+}蟺^{-}$, $B^{+}\to{\bar{D}}^{0} D_{s}^{+}蟺^{+}蟺^{-}$, and $B^{0}\to D^{*-}D_{s}^{+}蟺^{+}蟺^{-}$ decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13\,$TeV, c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.03399v1-abstract-full').style.display = 'inline'; document.getElementById('2411.03399v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.03399v1-abstract-full" style="display: none;"> An amplitude analysis of the $D_{s1}(2460)^+\to D_{s}^{+}蟺^{+}蟺^{-}$ transition is performed simultaneously in $B^{0}\to D^{-}D_{s}^{+}蟺^{+}蟺^{-}$, $B^{+}\to{\bar{D}}^{0} D_{s}^{+}蟺^{+}蟺^{-}$, and $B^{0}\to D^{*-}D_{s}^{+}蟺^{+}蟺^{-}$ decays. The study is based on a data sample of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,8,$ and $13\,$TeV, corresponding to a total integrated luminosity of $9\,\rm{fb}^{-1}$. A clear double-peak structure is observed in the $m(蟺^{+}蟺^{-})$ spectrum of the $D_{s1}(2460)^{+}\to D_{s}^{+}蟺^{+}蟺^{-}$ decay. The data can be described either with a model including $f_0(500)$, $f_0(980)$ and $f_2(1270)$ resonances, in which the contributions of $f_0(980)$ and $f_2(1270)$ are unexpectedly large, or with a model including $f_0(500)$, a doubly charged open-charm tetraquark state $T_{c\bar{s}}^{++}$ and its isospin partner $T_{c\bar{s}}^{0}$. If the former is considered implausible, the $T_{c\bar{s}}$ states are observed with high significance, and the data are consistent with isospin symmetry. When imposing isospin constraints between the two $T_{c\bar{s}}$ states, their mass and width are determined to be $2327\pm13\pm13\,$MeV and $96\pm16\,^{+170}_{-23}\,$MeV, respectively, where the first uncertainty is statistical and the second is systematic. The mass is slightly below the $DK$ threshold, and a spin-parity of $0^+$ is favoured with high significance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.03399v1-abstract-full').style.display = 'none'; document.getElementById('2411.03399v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3280/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-033, CERN-EP-2024-264 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.21115">arXiv:2410.21115</a> <span> [<a href="https://arxiv.org/pdf/2410.21115">pdf</a>, <a href="https://arxiv.org/format/2410.21115">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the CKM angle $纬$ in $B^{\pm} \to D K^*(892)^{\pm}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1111 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.21115v1-abstract-short" style="display: inline;"> Measurements of $CP$ observables and the CKM angle $纬$ are performed in $B^{\pm} \to D K^*(892)^{\pm}$ decays, where $D$ represents a superposition of $D^0$ and $\overline{D}{}^0$ states, using the LHCb dataset collected during Run 1 (2011-2012) and Run 2 (2015-2018). A comprehensive study of this channel is presented with the $D$ meson reconstructed in two-body final states $K^{\pm}蟺^{\mp}$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.21115v1-abstract-full').style.display = 'inline'; document.getElementById('2410.21115v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.21115v1-abstract-full" style="display: none;"> Measurements of $CP$ observables and the CKM angle $纬$ are performed in $B^{\pm} \to D K^*(892)^{\pm}$ decays, where $D$ represents a superposition of $D^0$ and $\overline{D}{}^0$ states, using the LHCb dataset collected during Run 1 (2011-2012) and Run 2 (2015-2018). A comprehensive study of this channel is presented with the $D$ meson reconstructed in two-body final states $K^{\pm}蟺^{\mp}$, $K^+K^-$ and $蟺^+蟺^-$; four-body final states $K^{\pm}蟺^{\mp}蟺^{\pm}蟺^{\mp}$ and $蟺^+蟺^-蟺^+蟺^-$; and three-body final states $K^0_{S} 蟺^+蟺^-$ and $K^0_{S} K^+ K^-$. This analysis includes the first observation of the suppressed $B^{\pm} \to [蟺^+K^-]_D K^{*\pm}$ and $B^{\pm} \to [蟺^+K^-蟺^+蟺^-]_D K^{*\pm}$ decays. The combined result gives $纬=(63\pm 13)^\circ$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.21115v1-abstract-full').style.display = 'none'; document.getElementById('2410.21115v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3180/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-023, CERN-EP-2024-260 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.18018">arXiv:2410.18018</a> <span> [<a href="https://arxiv.org/pdf/2410.18018">pdf</a>, <a href="https://arxiv.org/format/2410.18018">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurements of $蠄{(2S)}$ and $蠂_{c1}(3872)$ production within fully reconstructed jets </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1111 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.18018v1-abstract-short" style="display: inline;"> This paper presents the first measurement of $蠄{(2S)}$ and $蠂_{c1}(3872)$ meson production within fully reconstructed jets. Each quarkonium state (tag) is reconstructed via its decay to the $J/蠄$($\rightarrow渭^+渭^-$)$蟺^+蟺^-$ final state in the forward region using proton-proton collision data collected by the LHCb experiment at the center-of-mass-energy of $13 \text{TeV}$ in 2016, corresponding to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.18018v1-abstract-full').style.display = 'inline'; document.getElementById('2410.18018v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.18018v1-abstract-full" style="display: none;"> This paper presents the first measurement of $蠄{(2S)}$ and $蠂_{c1}(3872)$ meson production within fully reconstructed jets. Each quarkonium state (tag) is reconstructed via its decay to the $J/蠄$($\rightarrow渭^+渭^-$)$蟺^+蟺^-$ final state in the forward region using proton-proton collision data collected by the LHCb experiment at the center-of-mass-energy of $13 \text{TeV}$ in 2016, corresponding to an integrated luminosity of $1.64 \text{fb}^{-1}$. The fragmentation function, presented as the ratio of the quarkonium-tag transverse momentum to the full jet transverse momentum ($p_{\mathrm{T}}(\text{tag})/p_{\mathrm{T}}(\text{jet})$), is measured differentially in $p_{\mathrm{T}}(\text{jet})$ and $p_{\mathrm{T}}(\text{tag})$ bins. The distributions are separated into promptly produced quarkonia from proton-proton collisions and quarkonia produced from displaced $b$-hadron decays. While the displaced quarkonia fragmentation functions are in general well described by parton-shower predictions, the prompt quarkonium distributions differ significantly from fixed-order non-relativistic QCD (NRQCD) predictions followed by a QCD parton shower. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.18018v1-abstract-full').style.display = 'none'; document.getElementById('2410.18018v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1618/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-021, CERN-EP-2024-241 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.13748">arXiv:2410.13748</a> <span> [<a href="https://arxiv.org/pdf/2410.13748">pdf</a>, <a href="https://arxiv.org/format/2410.13748">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Test of lepton flavour universality with $B_s^0 \rightarrow 蠁\ell^+\ell^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1124 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.13748v1-abstract-short" style="display: inline;"> Lepton flavour universality in rare $b\rightarrow s$ transitions is tested for the first time using $B_s^0$ meson decays. The measurements are performed using $pp$ collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9$\,{\rm fb}^{-1}$. Branching fraction ratios between the $B_s^0 \rightarrow 蠁e^+e^-$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13748v1-abstract-full').style.display = 'inline'; document.getElementById('2410.13748v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.13748v1-abstract-full" style="display: none;"> Lepton flavour universality in rare $b\rightarrow s$ transitions is tested for the first time using $B_s^0$ meson decays. The measurements are performed using $pp$ collision data collected by the LHCb experiment between 2011 and 2018, corresponding to a total integrated luminosity of 9$\,{\rm fb}^{-1}$. Branching fraction ratios between the $B_s^0 \rightarrow 蠁e^+e^-$ and $B_s^0 \rightarrow 蠁渭^+渭^-$ decays are measured in three regions of dilepton mass squared, $q^2$, with $0.1 < q^2 < 1.1$, $1.1 < q^2 < 6.0$, and $15 < q^2 < 19\,{\rm GeV}^2/c^4$. The results agree with the Standard Model expectation of lepton flavour universality. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13748v1-abstract-full').style.display = 'none'; document.getElementById('2410.13748v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3513/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-032, CERN-EP-2024-255 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.02502">arXiv:2410.02502</a> <span> [<a href="https://arxiv.org/pdf/2410.02502">pdf</a>, <a href="https://arxiv.org/format/2410.02502">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2024)026">10.1007/JHEP12(2024)026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the effective leptonic weak mixing angle </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1117 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.02502v2-abstract-short" style="display: inline;"> Using $pp$ collision data at $\sqrt{s}=13$ TeV, recorded by the LHCb experiment between 2016 and 2018 and corresponding to an integrated luminosity of $5.4$ fb$^{-1}$, the forward-backward asymmetry in the $pp \to Z/纬^{*} \to 渭^+渭^-$ process is measured. The measurement is carried out in ten intervals of the difference between the muon pseudorapidities, within a fiducial region covering dimuon mas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.02502v2-abstract-full').style.display = 'inline'; document.getElementById('2410.02502v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.02502v2-abstract-full" style="display: none;"> Using $pp$ collision data at $\sqrt{s}=13$ TeV, recorded by the LHCb experiment between 2016 and 2018 and corresponding to an integrated luminosity of $5.4$ fb$^{-1}$, the forward-backward asymmetry in the $pp \to Z/纬^{*} \to 渭^+渭^-$ process is measured. The measurement is carried out in ten intervals of the difference between the muon pseudorapidities, within a fiducial region covering dimuon masses between $66$ and $116$ GeV, muon pseudorapidities between $2.0$ and $4.5$ and muon transverse momenta above $20$ GeV. These forward-backward asymmetries are compared with predictions, at next-to-leading order in the strong and electroweak couplings. The measured effective leptonic weak mixing angle is $\sin^2胃_{\rm eff}^\ell = 0.23147 \pm 0.00044 \pm 0.00005 \pm 0.00023$, where the first uncertainty is statistical, the second arises from systematic uncertainties associated with the asymmetry measurement, and the third arises from uncertainties in the fit model used to extract $\sin^2胃_{\rm eff}^\ell$ from the asymmetry measurement. This result is based on an arithmetic average of results using the CT18, MSHT20, and NNPDF31 parameterisations of the proton internal structure, and is consistent with previous measurements and with predictions from the global electroweak fit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.02502v2-abstract-full').style.display = 'none'; document.getElementById('2410.02502v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3360/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-028, CERN-EP-2024-230 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2024) 026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.17209">arXiv:2409.17209</a> <span> [<a href="https://arxiv.org/pdf/2409.17209">pdf</a>, <a href="https://arxiv.org/format/2409.17209">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-13573-0">10.1140/epjc/s10052-024-13573-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for $B_{(s)}^{*0}\to渭^+渭^-$ in $B_c^+\to蟺^+渭^+渭^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1113 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.17209v2-abstract-short" style="display: inline;"> A search for the very rare $B^{*0}\to渭^+渭^-$ and $B_{s}^{*0}\to渭^+渭^-$ decays is conducted by analysing the $B_c^+\to 蟺^+渭^+渭^-$ process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9$\text{\,fb}^{-1}$. The signal signatures correspond to simultaneous peaks in the $渭^+渭^-$ and $蟺^+渭^+渭^-$ invari… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.17209v2-abstract-full').style.display = 'inline'; document.getElementById('2409.17209v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.17209v2-abstract-full" style="display: none;"> A search for the very rare $B^{*0}\to渭^+渭^-$ and $B_{s}^{*0}\to渭^+渭^-$ decays is conducted by analysing the $B_c^+\to 蟺^+渭^+渭^-$ process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9$\text{\,fb}^{-1}$. The signal signatures correspond to simultaneous peaks in the $渭^+渭^-$ and $蟺^+渭^+渭^-$ invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the $90\%$ confidence level are set on the branching fractions relative to that for $B_c^+\to J\mskip -3mu/\mskip -2mu蠄蟺^+$ decays, \begin{equation*} {\cal R}_{B^{*0}(渭^+渭^-)蟺^+/J\mskip -3mu/\mskip -2mu蠄蟺^+} < 3.8\times 10^{-5}\ \text{ and }\: {\cal R}_{B_{s}^{*0}(渭^+渭^-)蟺^+/J\mskip -3mu/\mskip -2mu蠄蟺^+} < 5.0\times 10^{-5}\,. \end{equation*} <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.17209v2-abstract-full').style.display = 'none'; document.getElementById('2409.17209v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1796/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-220, LHCb-PAPER-2024-026 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 85, 20 (2025) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.12696">arXiv:2409.12696</a> <span> [<a href="https://arxiv.org/pdf/2409.12696">pdf</a>, <a href="https://arxiv.org/format/2409.12696">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> The 蟺^+蟺^- Coulomb interaction study and its use in the data processing </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Afanasyev%2C+L">L. Afanasyev</a>, <a href="/search/hep-ex?searchtype=author&query=Anania%2C+A">A. Anania</a>, <a href="/search/hep-ex?searchtype=author&query=Aogaki%2C+S">S. Aogaki</a>, <a href="/search/hep-ex?searchtype=author&query=Benelli%2C+A">A. Benelli</a>, <a href="/search/hep-ex?searchtype=author&query=Brekhovskikh%2C+V">V. Brekhovskikh</a>, <a href="/search/hep-ex?searchtype=author&query=Cechak%2C+T">T. Cechak</a>, <a href="/search/hep-ex?searchtype=author&query=Chiba%2C+M">M. Chiba</a>, <a href="/search/hep-ex?searchtype=author&query=Chliapnikov%2C+P">P. Chliapnikov</a>, <a href="/search/hep-ex?searchtype=author&query=Drijard%2C+D">D. Drijard</a>, <a href="/search/hep-ex?searchtype=author&query=Dudarev%2C+A">A. Dudarev</a>, <a href="/search/hep-ex?searchtype=author&query=Dumitriu%2C+D">D. Dumitriu</a>, <a href="/search/hep-ex?searchtype=author&query=Federicova%2C+P">P. Federicova</a>, <a href="/search/hep-ex?searchtype=author&query=Gorin%2C+A">A. Gorin</a>, <a href="/search/hep-ex?searchtype=author&query=Gritsay%2C+K">K. Gritsay</a>, <a href="/search/hep-ex?searchtype=author&query=Guaraldo%2C+C">C. Guaraldo</a>, <a href="/search/hep-ex?searchtype=author&query=Gugiu%2C+M">M. Gugiu</a>, <a href="/search/hep-ex?searchtype=author&query=Hansroul%2C+M">M. Hansroul</a>, <a href="/search/hep-ex?searchtype=author&query=Hons%2C+Z">Z. Hons</a>, <a href="/search/hep-ex?searchtype=author&query=Horikawa%2C+S">S. Horikawa</a>, <a href="/search/hep-ex?searchtype=author&query=Iwashita%2C+Y">Y. Iwashita</a>, <a href="/search/hep-ex?searchtype=author&query=Kluson%2C+J">J. Kluson</a>, <a href="/search/hep-ex?searchtype=author&query=Kobayashi%2C+M">M. Kobayashi</a>, <a href="/search/hep-ex?searchtype=author&query=Kruglova%2C+L">L. Kruglova</a>, <a href="/search/hep-ex?searchtype=author&query=Kulikov%2C+A">A. Kulikov</a> , et al. (30 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.12696v1-abstract-short" style="display: inline;"> In this work the Coulomb effects (Coulomb correlations) in $蟺^+蟺^-$ pairs produced in p + Ni collisions at 24 GeV/$c$, are studied using experimental $蟺^+蟺^-$ pair distributions in $Q$, the relative momentum in the pair center of mass system (c.m.s), and its projections $Q_L$ (longitudinal component) and $Q_t$ (transverse component) relative to the pair direction in the laboratory system (l.s.).… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12696v1-abstract-full').style.display = 'inline'; document.getElementById('2409.12696v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.12696v1-abstract-full" style="display: none;"> In this work the Coulomb effects (Coulomb correlations) in $蟺^+蟺^-$ pairs produced in p + Ni collisions at 24 GeV/$c$, are studied using experimental $蟺^+蟺^-$ pair distributions in $Q$, the relative momentum in the pair center of mass system (c.m.s), and its projections $Q_L$ (longitudinal component) and $Q_t$ (transverse component) relative to the pair direction in the laboratory system (l.s.). The $Q$, $Q_L$, and $Q_t$ distributions of the {\sl Coulomb pairs} in the c.m.s. have been simulated assuming they are described by the phase space modified by the known point-like Coulomb correlation function $A_C(Q)$, corrected for small effects due to the nonpoint-like pair production and the strong two-pion interaction. The same distributions of {\sl non-Coulomb pairs} have been simulated according to the phase space, but without $A_C(Q)$. It is shown that the number of {\sl Coulomb pairs} in all $Q_t$ intervals, including the small $Q_t$ (small opening angles $胃$ in the l.s.) is calculated with the theoretical precision better than 2\%. The comparison of the simulated and experimental numbers of {\sl Coulomb pairs} at small $Q_t$ allows us to check and correct the detection efficiency for the pairs with small $胃$ (0.06 mrad and smaller). It is shown that {\sl Coulomb pairs} can be used as a new physical tool to check and correct the quality of the simulated events. The special property of the {\sl Coulomb pairs} is the possibility of checking and correcting the detection efficiency, especially for the pairs with small opening angles. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12696v1-abstract-full').style.display = 'none'; document.getElementById('2409.12696v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.12629">arXiv:2409.12629</a> <span> [<a href="https://arxiv.org/pdf/2409.12629">pdf</a>, <a href="https://arxiv.org/format/2409.12629">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2024)147">10.1007/JHEP12(2024)147 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Analysis of $\it螞^\mathrm{0}_b \rightarrow pK^-渭^+渭^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.12629v2-abstract-short" style="display: inline;"> The differential branching fraction and angular coefficients of \ensuremath{\it螞^\mathrm{0}_b \rightarrow pK^-渭^+渭^-}\xspace decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9$\aunit{fb}^{-1}$ of integrated luminosity collected with the $\mbox{LHCb}$ detector between 2011 and 2018. The data are consistent with rec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12629v2-abstract-full').style.display = 'inline'; document.getElementById('2409.12629v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.12629v2-abstract-full" style="display: none;"> The differential branching fraction and angular coefficients of \ensuremath{\it螞^\mathrm{0}_b \rightarrow pK^-渭^+渭^-}\xspace decays are measured in bins of the dimuon mass squared and dihadron mass. The analysis is performed using a data set corresponding to 9$\aunit{fb}^{-1}$ of integrated luminosity collected with the $\mbox{LHCb}$ detector between 2011 and 2018. The data are consistent with receiving contributions from a mixture of $\it螞$ resonances with different spin-parity quantum numbers. The angular coefficients show a pattern of vector--axial vector interference that is a characteristic of the type of flavour-changing neutral-current transition relevant for these decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12629v2-abstract-full').style.display = 'none'; document.getElementById('2409.12629v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/3264.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-212, LHCb-PAPER-2024-024 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2024) 147 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.05440">arXiv:2409.05440</a> <span> [<a href="https://arxiv.org/pdf/2409.05440">pdf</a>, <a href="https://arxiv.org/format/2409.05440">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> First determination of the spin-parity of $螢_{c}(3055)^{+,0}$ baryons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1109 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.05440v1-abstract-short" style="display: inline;"> The ${螢_{b}^{0(-)}\to螢_{c}(3055)^{+(0)}(\to D^{+(0)}螞)蟺^{-}}$ decay chains are observed, and the spin-parity of $螢_{c}(3055)^{+(0)}$ baryons is determined for the first time. The measurement is performed using proton-proton collision data at a center-of-mass energy of $\sqrt{s}=13\,\text{TeV}$, corresponding to an integrated luminosity of $5.4\,\text{fb}^{-1}$, recorded by the~$\text{LHCb}$ experi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.05440v1-abstract-full').style.display = 'inline'; document.getElementById('2409.05440v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.05440v1-abstract-full" style="display: none;"> The ${螢_{b}^{0(-)}\to螢_{c}(3055)^{+(0)}(\to D^{+(0)}螞)蟺^{-}}$ decay chains are observed, and the spin-parity of $螢_{c}(3055)^{+(0)}$ baryons is determined for the first time. The measurement is performed using proton-proton collision data at a center-of-mass energy of $\sqrt{s}=13\,\text{TeV}$, corresponding to an integrated luminosity of $5.4\,\text{fb}^{-1}$, recorded by the~$\text{LHCb}$ experiment between 2016 and 2018. The spin-parity of the $螢_{c}(3055)^{+(0)}$ baryons is determined to be $3/2^{+}$ with a significance of more than $6.5蟽$ ($3.5蟽$) compared to all other tested hypotheses. The up-down asymmetries of the ${螢_{b}^{0(-)}\to螢_{c}(3055)^{+(0)}蟺^{-}}$ transitions are measured to be $-0.92\pm0.10\pm0.05$ ($-0.92\pm0.16\pm0.22$), consistent with maximal parity violation, where the first uncertainty is statistical and the second is systematic. These results support the hypothesis that the $螢_{c}(3055)^{+(0)}$ baryons correspond to the first $D$-wave $位$-mode excitation of the $螢_{c}$ flavor triplet. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.05440v1-abstract-full').style.display = 'none'; document.getElementById('2409.05440v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1603 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-018, CERN-EP-2024-215 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.03496">arXiv:2409.03496</a> <span> [<a href="https://arxiv.org/pdf/2409.03496">pdf</a>, <a href="https://arxiv.org/format/2409.03496">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of exclusive $J/蠄$ and $蠄(2S)$ production at $\sqrt{s}=13$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1072 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.03496v3-abstract-short" style="display: inline;"> Measurements are presented of the cross-section for the central exclusive production of $J/蠄\to渭^+渭^-$ and $蠄(2S)\to渭^+渭^-$ processes in proton-proton collisions at $\sqrt{s} = 13 $ TeV with 2016-2018 data. They are performed by requiring both muons to be in the LHCb acceptance (with pseudorapidity $2<畏_{渭^\pm} < 4.5$) and mesons in the rapidity range $2.0 < y < 4.5$. The integrated cross-section… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03496v3-abstract-full').style.display = 'inline'; document.getElementById('2409.03496v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.03496v3-abstract-full" style="display: none;"> Measurements are presented of the cross-section for the central exclusive production of $J/蠄\to渭^+渭^-$ and $蠄(2S)\to渭^+渭^-$ processes in proton-proton collisions at $\sqrt{s} = 13 $ TeV with 2016-2018 data. They are performed by requiring both muons to be in the LHCb acceptance (with pseudorapidity $2<畏_{渭^\pm} < 4.5$) and mesons in the rapidity range $2.0 < y < 4.5$. The integrated cross-section results are \begin{equation*} 蟽_{J/蠄\to渭^+渭^-}(2.0<y_{J/蠄}<4.5,2.0<畏_{渭^\pm} < 4.5) = 400 \pm 2 \pm 5 \pm 12 \,{\rm pb}\,, \end{equation*} \begin{equation*} 蟽_{蠄(2S)\to渭^+渭^-}(2.0<y_{蠄(2S)}<4.5,2.0<畏_{渭^\pm} < 4.5) = 9.40 \pm 0.15 \pm 0.13 \pm 0.27 \,{\rm pb}\,, \end{equation*} where the uncertainties are statistical, systematic and due to the luminosity determination. In addition, a measurement of the ratio of $蠄(2S)$ and $J/蠄$ cross-sections, at an average photon-proton centre-of-mass energy of 1 TeV, is performed, giving \begin{equation*} \frac{蟽_{蠄(2S)}}{蟽_{J/蠄}} = 0.1763 \pm 0.0029 \pm 0.0008 \pm 0.0039 \,, \end{equation*} where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the involved branching fractions. For the first time, the dependence of the $J/蠄$ and $蠄(2S)$ cross-sections on the total transverse momentum transfer is determined in $pp$ collisions and is found consistent with the behaviour observed in electron-proton collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03496v3-abstract-full').style.display = 'none'; document.getElementById('2409.03496v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1801</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-012, CERN-EP-2024-213 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.03009">arXiv:2409.03009</a> <span> [<a href="https://arxiv.org/pdf/2409.03009">pdf</a>, <a href="https://arxiv.org/format/2409.03009">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP01(2025)061">10.1007/JHEP01(2025)061 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $CP$ violation in ${B^0}\rightarrow{D^{+}D^{-}}$ and ${B^{0}_{s}}\rightarrow{D^{+}_{s}D^{-}_{s}}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1115 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.03009v2-abstract-short" style="display: inline;"> A time-dependent, flavour-tagged measurement of $CP$ violation is performed with ${B^0}\rightarrow{D^{+}D^{-}}$ and ${B^{0}_{s}}\rightarrow{D^{+}_{s}D^{-}_{s}}$ decays, using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 6 fb$^{-1}$. In ${B^0}\rightarrow{D^{+}D^{-}}$ decays the $CP$-violation parame… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03009v2-abstract-full').style.display = 'inline'; document.getElementById('2409.03009v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.03009v2-abstract-full" style="display: none;"> A time-dependent, flavour-tagged measurement of $CP$ violation is performed with ${B^0}\rightarrow{D^{+}D^{-}}$ and ${B^{0}_{s}}\rightarrow{D^{+}_{s}D^{-}_{s}}$ decays, using data collected by the LHCb detector in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 6 fb$^{-1}$. In ${B^0}\rightarrow{D^{+}D^{-}}$ decays the $CP$-violation parameters are measured to be \begin{align} S_{D^{+}D^{-}} & = -0.552 \pm 0.100\,\text{(stat)} \pm 0.010\,\text{(syst)}, \nonumber \newline C_{D^{+}D^{-}} & = \phantom{-}0.128 \pm0.103\,\text{(stat)} \pm 0.010\,\text{(syst)}. \nonumber \end{align} In $B^{0}_{s} \rightarrow D^{+}_{s}D^{-}_{s}$ decays the $CP$-violating parameter formulation in terms of $蠁_{s}$ and $|位|$ results in \begin{align} 蠁_{s} & = -0.086 \pm 0.106 \,\text{(stat)} \pm 0.028\,\text{(syst)} \,\text{rad}, \nonumber \newline |位_{D^{+}_{s}D^{-}_{s}}| & = \phantom{-}1.145 \pm 0.126\,\text{(stat)} \pm 0.031\,\text{(syst)}. \nonumber \end{align} These results represent the most precise single measurement of the $CP$-violation parameters in their respective channels. For the first time in a single measurement, $CP$ symmetry is observed to be violated in ${B^0}\rightarrow{D^{+}D^{-}}$ decays with a significance exceeding six standard deviations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.03009v2-abstract-full').style.display = 'none'; document.getElementById('2409.03009v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3262/ (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-027, CERN-EP-2024-217 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 01 (2025) 061 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.02759">arXiv:2409.02759</a> <span> [<a href="https://arxiv.org/pdf/2409.02759">pdf</a>, <a href="https://arxiv.org/format/2409.02759">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.133.261804">10.1103/PhysRevLett.133.261804 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $\it螞_\it{b}^0$, $\it螞_\it{c}^+$ and $\it螞$ decay parameters using $\it螞_\it{b}^0 \to \it螞_\it{c}^+ h^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1103 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.02759v2-abstract-short" style="display: inline;"> A comprehensive study of the angular distributions in the bottom-baryon decays $\it螞^\mathrm{0}_b\to\it螞_c^+ h^-(h=蟺, K)$, followed by $\it螞_c^+\to\it螞 h^+$ with $\it螞\to \it{p} 蟺^-$ or $\it螞_c^+\to\it{p}\it{K}^0_\mathrm{S}$ decays, is performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of $9~\mathrm{fb}^{-1}$ collected by the LHCb experiment at cent… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.02759v2-abstract-full').style.display = 'inline'; document.getElementById('2409.02759v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.02759v2-abstract-full" style="display: none;"> A comprehensive study of the angular distributions in the bottom-baryon decays $\it螞^\mathrm{0}_b\to\it螞_c^+ h^-(h=蟺, K)$, followed by $\it螞_c^+\to\it螞 h^+$ with $\it螞\to \it{p} 蟺^-$ or $\it螞_c^+\to\it{p}\it{K}^0_\mathrm{S}$ decays, is performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of $9~\mathrm{fb}^{-1}$ collected by the LHCb experiment at center-of-mass energies of 7, 8 and 13 $\mathrm{Te\kern -0.1em V}$. The decay parameters and the associated charge-parity ($C\!P$) asymmetries are measured, with no significant $C\!P$ violation observed. For the first time, the $\it螞^\mathrm{0}_b \to \it螞_c^+ h^-$ decay parameters are measured. The most precise measurements of the decay parameters $伪, 尾$ and $纬$ are obtained for $\it螞_c^+$ decays and an independent measurement of the decay parameters for the strange-baryon $\it螞$ decay is provided. The results deepen our understanding of weak decay dynamics in baryon decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.02759v2-abstract-full').style.display = 'none'; document.getElementById('2409.02759v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3240 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-017, CERN-EP-2024-200 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 133 (2024) 261804 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.01414">arXiv:2409.01414</a> <span> [<a href="https://arxiv.org/pdf/2409.01414">pdf</a>, <a href="https://arxiv.org/format/2409.01414">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.133.251801">10.1103/PhysRevLett.133.251801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $C\!P$ violation observables in $D^+\rightarrow K^-K^+蟺^+$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1109 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.01414v2-abstract-short" style="display: inline;"> A search for violation of the charge-parity $C\!P$ symmetry in the $D^+\rightarrow K^-K^+蟺^+$ decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4 fb$^{-1}$, collected at a center-of-mass energy of $13$ TeV with the LHCb detector. A novel model-independent technique is used to compare the $D^+$ and $D^-$ phase-space distributions, with instrumental… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.01414v2-abstract-full').style.display = 'inline'; document.getElementById('2409.01414v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.01414v2-abstract-full" style="display: none;"> A search for violation of the charge-parity $C\!P$ symmetry in the $D^+\rightarrow K^-K^+蟺^+$ decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4 fb$^{-1}$, collected at a center-of-mass energy of $13$ TeV with the LHCb detector. A novel model-independent technique is used to compare the $D^+$ and $D^-$ phase-space distributions, with instrumental asymmetries subtracted using the $D^+_{s}\rightarrow K^-K^+蟺^+$ decay as a control channel. The $p$-value for the hypothesis of $C\!P$ conservation is $8.1\%$. The $C\!P$ asymmetry observables $A_{C\!P|S}^{蠁蟺^+} = (0.95 \pm 0.43_{stat} \pm 0.26_{syst})\times 10^{-3}$ and $A_{C\!P|S}^{\overline{K}^{*0}K^+} = (-0.26 \pm 0.56_{ stat} \pm 0.18_{syst})\times 10^{-3}$ are also measured. These results show no evidence of $C\!P$ violation and represent the most sensitive search performed through the phase space of a multibody decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.01414v2-abstract-full').style.display = 'none'; document.getElementById('2409.01414v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1616 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-204, LHCb-PAPER-2024-019 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 133, 251801 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.16646">arXiv:2408.16646</a> <span> [<a href="https://arxiv.org/pdf/2408.16646">pdf</a>, <a href="https://arxiv.org/format/2408.16646">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP12(2024)062">10.1007/JHEP12(2024)062 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the rare decay $J/蠄\to 渭^+渭^-渭^+渭^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1096 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2408.16646v2-abstract-short" style="display: inline;"> The rare electromagnetic $J/蠄\to 渭^+渭^-渭^+渭^-$ decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016-2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $5.4\,\text{fb}^{-1}$. The rate of this decay is measured relative to that of the $J/蠄\to 渭^+渭^-$ mode.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.16646v2-abstract-full').style.display = 'inline'; document.getElementById('2408.16646v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.16646v2-abstract-full" style="display: none;"> The rare electromagnetic $J/蠄\to 渭^+渭^-渭^+渭^-$ decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016-2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $5.4\,\text{fb}^{-1}$. The rate of this decay is measured relative to that of the $J/蠄\to 渭^+渭^-$ mode. Using the QED model for the four-muon decay in the efficiency estimation, its branching fraction is determined to be \begin{equation*} {\mathcal{B}}(J/蠄\to 渭^+渭^-渭^+渭^-) = (1.13\pm0.10\pm0.05\pm0.01)\times 10^{-6}, \end{equation*} where the uncertainties are statistical, systematic and due to the uncertainty on the branching fraction of the $J/蠄\to 渭^+渭^-$ decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.16646v2-abstract-full').style.display = 'none'; document.getElementById('2408.16646v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3453 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-016, CERN-EP-2024-201 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 12 (2024) 062 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.05134">arXiv:2408.05134</a> <span> [<a href="https://arxiv.org/pdf/2408.05134">pdf</a>, <a href="https://arxiv.org/format/2408.05134">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP10(2024)122">10.1007/JHEP10(2024)122 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of muonic Dalitz decays of $蠂_{b}$ mesons and precise spectroscopy of hidden-beauty states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1114 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2408.05134v2-abstract-short" style="display: inline;"> The decays of the $蠂_{b1}(1P)$, $蠂_{b2}(1P)$, $蠂_{b1}(2P)$ and $蠂_{b2}(2P)$ mesons into the $违(1S)渭^+渭^-$ final state are observed with a high significance using proton-proton collision data collected with the LHCb detector and corresponding to an integrated luminosity of 9fb$^{-1}$. The newly observed decays together with the $违(2S)\rightarrow 违(1S)蟺^+蟺^-$ and $违(3S)\rightarrow 违(2S)蟺^+蟺^-$ decay… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.05134v2-abstract-full').style.display = 'inline'; document.getElementById('2408.05134v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.05134v2-abstract-full" style="display: none;"> The decays of the $蠂_{b1}(1P)$, $蠂_{b2}(1P)$, $蠂_{b1}(2P)$ and $蠂_{b2}(2P)$ mesons into the $违(1S)渭^+渭^-$ final state are observed with a high significance using proton-proton collision data collected with the LHCb detector and corresponding to an integrated luminosity of 9fb$^{-1}$. The newly observed decays together with the $违(2S)\rightarrow 违(1S)蟺^+蟺^-$ and $违(3S)\rightarrow 违(2S)蟺^+蟺^-$ decay modes are used for precision measurements of the mass and mass splittings for the hidden-beauty states. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.05134v2-abstract-full').style.display = 'none'; document.getElementById('2408.05134v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3633</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-025,CERN-EP-2024-207 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 10 (2024) 122 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.18001">arXiv:2407.18001</a> <span> [<a href="https://arxiv.org/pdf/2407.18001">pdf</a>, <a href="https://arxiv.org/format/2407.18001">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.111.012001">10.1103/PhysRevD.111.012001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $D^0-\overline{D}^0$ mixing and search for $CP$ violation with $D^0\rightarrow K^+蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1070 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.18001v2-abstract-short" style="display: inline;"> A measurement of the time-dependent ratio of the $D^0\rightarrow K^+蟺^-$ to $\overline{D}^0\rightarrow K^+蟺^-$ decay rates is reported. The analysis uses a sample of proton-proton collisions corresponding to an integrated luminosity of 6 fb$^{-1}$ recorded by the LHCb experiment from 2015 through 2018 at a center-of-mass energy of 13 TeV. The $D^0$ meson is required to originate from a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.18001v2-abstract-full').style.display = 'inline'; document.getElementById('2407.18001v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.18001v2-abstract-full" style="display: none;"> A measurement of the time-dependent ratio of the $D^0\rightarrow K^+蟺^-$ to $\overline{D}^0\rightarrow K^+蟺^-$ decay rates is reported. The analysis uses a sample of proton-proton collisions corresponding to an integrated luminosity of 6 fb$^{-1}$ recorded by the LHCb experiment from 2015 through 2018 at a center-of-mass energy of 13 TeV. The $D^0$ meson is required to originate from a $D^{*+}\rightarrow D^0蟺^+$ decay, such that its flavor at production is inferred from the charge of the accompanying pion. The measurement is performed simultaneously for the $K^+蟺^-$ and $K^-蟺^+$ final states, allowing both mixing and $CP$-violation parameters to be determined. The value of the ratio of the decay rates at production is determined to be $R_{K蟺} = (343.1 \pm 2.0) \times 10^{-5}$. The mixing parameters are measured to be $c_{K蟺} = (51.4 \pm 3.5) \times 10^{-4}$ and $c_{K蟺}^{\prime} = (13 \pm 4) \times 10^{-6}$, where $\sqrt{R_{K蟺}}c_{K蟺}$ is the linear coefficient of the expansion of the ratio as a function of decay time in units of the $D^0$ lifetime, and $c_{K蟺}^{\prime}$ is the quadratic coefficient, both averaged between the $K^+蟺^-$ and $K^-蟺^+$ final states. The precision is improved relative to the previous best measurement by approximately 60%. No evidence for $CP$ violation is found. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.18001v2-abstract-full').style.display = 'none'; document.getElementById('2407.18001v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1800</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-008, CERN-EP-2024-178 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 111 (2025) 012001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.14301">arXiv:2407.14301</a> <span> [<a href="https://arxiv.org/pdf/2407.14301">pdf</a>, <a href="https://arxiv.org/format/2407.14301">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of exotic $J/蠄蠁$ resonances in diffractive processes in proton-proton collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1068 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.14301v1-abstract-short" style="display: inline;"> The first study of $J/蠄蠁$ production in diffractive processes in proton-proton collisions is presented. The study is based on an LHCb dataset recorded at centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5 fb$^{-1}$. The data disfavour a nonresonant $J/蠄蠁$ production but are consistent with a resonant model including several resonant states observed previously only in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14301v1-abstract-full').style.display = 'inline'; document.getElementById('2407.14301v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.14301v1-abstract-full" style="display: none;"> The first study of $J/蠄蠁$ production in diffractive processes in proton-proton collisions is presented. The study is based on an LHCb dataset recorded at centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5 fb$^{-1}$. The data disfavour a nonresonant $J/蠄蠁$ production but are consistent with a resonant model including several resonant states observed previously only in $B^+ \to J/蠄蠁K^+$ decays. The $蠂_{c0}(4500)$ state is observed with a significance over $5蟽$ and the $蠂_{c1}(4274)$ is confirmed with a significance of more than $4蟽$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14301v1-abstract-full').style.display = 'none'; document.getElementById('2407.14301v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at: https://lhcbproject.web.cern.ch/Publications/LHCbProjectPublic/LHCb-PAPER-2023-043.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-043, CERN-EP-2024-149 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.14261">arXiv:2407.14261</a> <span> [<a href="https://arxiv.org/pdf/2407.14261">pdf</a>, <a href="https://arxiv.org/format/2407.14261">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-024-13478-y">10.1140/epjc/s10052-024-13478-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of charmonium production via the decay to $p\bar{p}$ at $\sqrt{s} = 13 TeV$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1060 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.14261v2-abstract-short" style="display: inline;"> Charmonium production cross-section in proton-proton collisions is measured at the centre-of-mass energy $\sqrt{s}=13\,TeV$ using decays to $p\bar{p}$ final state. The study is performed using a data sample corresponding to an integrated luminosity of $2.2\,{fb}^{-1}$ collected in 2018 with the $LHCb$ detector. The production cross-section of the $畏_c$ meson is measured in a rapidity range of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14261v2-abstract-full').style.display = 'inline'; document.getElementById('2407.14261v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.14261v2-abstract-full" style="display: none;"> Charmonium production cross-section in proton-proton collisions is measured at the centre-of-mass energy $\sqrt{s}=13\,TeV$ using decays to $p\bar{p}$ final state. The study is performed using a data sample corresponding to an integrated luminosity of $2.2\,{fb}^{-1}$ collected in 2018 with the $LHCb$ detector. The production cross-section of the $畏_c$ meson is measured in a rapidity range of $2.0 < y < 4.0$ and in a transverse momentum range of $5.0 < p_{T} < 20.0\,{GeV/\it{c}}$, which is extended compared with previous $LHCb$ analyses. The differential cross-section is measured in bins of $p_{T}$ and, for the first time, of $y$. Upper limits, at 90% and 95% confidence levels, on the $畏_c(2S)$ and $h_c(1P)$ prompt production cross-sections are determined for the first time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.14261v2-abstract-full').style.display = 'none'; document.getElementById('2407.14261v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-004.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-004, CERN-EP-2024-165 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C84 (2024) 1274 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.12475">arXiv:2407.12475</a> <span> [<a href="https://arxiv.org/pdf/2407.12475">pdf</a>, <a href="https://arxiv.org/format/2407.12475">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Amplitude analysis of $B^+ \to 蠄(2S) K^+ 蟺^+ 蟺^-$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1092 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.12475v1-abstract-short" style="display: inline;"> The first full amplitude analysis of $B^+ \to 蠄(2S) K^+ 蟺^+ 蟺^-$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$ recorded with the LHCb detector. The rich $K^+ 蟺^+ 蟺^-$ spectrum is studied and the branching fractions of the resonant substructure associated with the prominent $K_1(1270)^+$ contribution are measured. The data ca… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12475v1-abstract-full').style.display = 'inline'; document.getElementById('2407.12475v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.12475v1-abstract-full" style="display: none;"> The first full amplitude analysis of $B^+ \to 蠄(2S) K^+ 蟺^+ 蟺^-$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$ recorded with the LHCb detector. The rich $K^+ 蟺^+ 蟺^-$ spectrum is studied and the branching fractions of the resonant substructure associated with the prominent $K_1(1270)^+$ contribution are measured. The data cannot be described by conventional strange and charmonium resonances only. An amplitude model with 53 components is developed comprising 11 hidden-charm exotic hadrons. New production mechanisms for charged charmonium-like states are observed. Significant resonant activity with spin-parity $J^P = 1^+$ in the $蠄(2S) 蟺^+$ system is confirmed and a multi-pole structure is demonstrated. The spectral decomposition of the $蠄(2S) 蟺^+ 蟺^-$ invariant-mass structure, dominated by $X^0 \to 蠄(2S) 蟻(770)^0$ decays, broadly resembles the $J/蠄蠁$ spectrum observed in $B^+ \to J/蠄蠁K^+$ decays. Exotic $蠄(2S) K^+ 蟺^-$ resonances are observed for the first time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.12475v1-abstract-full').style.display = 'none'; document.getElementById('2407.12475v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-014.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-014, CERN-EP-2024-177 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.11474">arXiv:2407.11474</a> <span> [<a href="https://arxiv.org/pdf/2407.11474">pdf</a>, <a href="https://arxiv.org/format/2407.11474">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.052007">10.1103/PhysRevD.110.052007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the rare decay of charmed baryon $螞_c^+$ into $p 渭^+ 渭^-$ final state </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1063 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.11474v2-abstract-short" style="display: inline;"> A search for the nonresonant $螞_c^+ \to p 渭^+ 渭^-$ decay is performed using proton-proton collision data recorded at a centre-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branchi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.11474v2-abstract-full').style.display = 'inline'; document.getElementById('2407.11474v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.11474v2-abstract-full" style="display: none;"> A search for the nonresonant $螞_c^+ \to p 渭^+ 渭^-$ decay is performed using proton-proton collision data recorded at a centre-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branching fraction of the $螞_c^+ \to p 渭^+ 渭^-$ decay is determined to be $2.9~(3.2) \times 10^{-8}$ at 90% (95%) confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the $畏$, $蟻$ and $蠅$ resonances are also determined. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.11474v2-abstract-full').style.display = 'none'; document.getElementById('2407.11474v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-005.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-005, CERN-EP-2024-158 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110 (2024) 052007 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.17006">arXiv:2406.17006</a> <span> [<a href="https://arxiv.org/pdf/2406.17006">pdf</a>, <a href="https://arxiv.org/format/2406.17006">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Probing the nature of the $蠂_{c1}(3872)$ state using radiative decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1094 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.17006v1-abstract-short" style="display: inline;"> The radiative decays $蠂_{c1}(3872)\rightarrow蠄(2S)纬$ and $蠂_{c1}(3872)\rightarrow J/蠄纬$ are used to probe the~nature of the~$蠂_{c1}(3872)$ state using proton-proton collision data collected with the LHCb detector, corresponding to an~integrated luminosity of~9fb$^{-1}$. Using the~$B^+\rightarrow 蠂_{c1}(3872)K^+$decay, the $蠂_{c1}(3872)\rightarrow 蠄(2S)纬$ process is observed for the first time and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.17006v1-abstract-full').style.display = 'inline'; document.getElementById('2406.17006v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.17006v1-abstract-full" style="display: none;"> The radiative decays $蠂_{c1}(3872)\rightarrow蠄(2S)纬$ and $蠂_{c1}(3872)\rightarrow J/蠄纬$ are used to probe the~nature of the~$蠂_{c1}(3872)$ state using proton-proton collision data collected with the LHCb detector, corresponding to an~integrated luminosity of~9fb$^{-1}$. Using the~$B^+\rightarrow 蠂_{c1}(3872)K^+$decay, the $蠂_{c1}(3872)\rightarrow 蠄(2S)纬$ process is observed for the first time and the ratio of its partial width to that of the $蠂_{c1}(3872)\rightarrow J/蠄纬$ decay is measured to be $$ \frac{螕_{蠂_{c1}(3872)\rightarrow 蠄(2S)纬}} {螕_{蠂_{c1}(3872)\rightarrow J/蠄纬}} = 1.67 \pm 0.21 \pm 0.12 \pm0.04 , $$ where the first uncertainty is statistical, the second systematic and the third is due to the uncertainties on the branching fractions of the $蠄(2S)$ and $J/蠄$ mesons. The measured ratio makes the interpretation of the $蠂_{c1}(3872)$ state as a~pure $D^0\bar{D}^{*0}+\bar{D}^0D^{*0}$ molecule questionable and strongly indicates a sizeable compact charmonium or tetraquark component within the $蠂_{c1}(3872)$ state. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.17006v1-abstract-full').style.display = 'none'; document.getElementById('2406.17006v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">31 pages, 2 figures. All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-015.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-015, CERN-EP-2025-157 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.12111">arXiv:2406.12111</a> <span> [<a href="https://arxiv.org/pdf/2406.12111">pdf</a>, <a href="https://arxiv.org/format/2406.12111">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.072002">10.1103/PhysRevD.110.072002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision measurement of the $螢^-_b$ baryon lifetime </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1064 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.12111v2-abstract-short" style="display: inline;"> A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.5 fb$^{-1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the $螢^-_b$ baryon to that of the $螞^0_b$ baryon, $r_蟿\equiv蟿_{螢^-_b}/蟿_{螞^0_b}$. The value ${r_蟿=1.076\pm0.013\pm0.006}$ is obtained, where the first uncertainty is statistical and the second systematic.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12111v2-abstract-full').style.display = 'inline'; document.getElementById('2406.12111v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.12111v2-abstract-full" style="display: none;"> A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.5 fb$^{-1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the $螢^-_b$ baryon to that of the $螞^0_b$ baryon, $r_蟿\equiv蟿_{螢^-_b}/蟿_{螞^0_b}$. The value ${r_蟿=1.076\pm0.013\pm0.006}$ is obtained, where the first uncertainty is statistical and the second systematic. This value is averaged with the corresponding value from Run 1 to obtain ${r_蟿^{\rm Run\,1,2} = 1.078\pm0.012\pm0.007}$. Multiplying by the world-average value of the $螞^0_b$ lifetime yields $蟿_{螢^-_b}^{\rm Run~1,2} = 1.578\pm0.018\pm0.010\pm0.011$ ps, where the uncertainties are statistical, systematic, and due to the limited knowledge of the $螞^0_b$ lifetime. This measurement improves the precision of the current world average of the $螢^-_b$ lifetime by about a factor of two, and is in good agreement with the most recent theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12111v2-abstract-full').style.display = 'none'; document.getElementById('2406.12111v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 5 figures. All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2014-010.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-010, CERN-EP-2024-139 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D110, 072002 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.03387">arXiv:2406.03387</a> <span> [<a href="https://arxiv.org/pdf/2406.03387">pdf</a>, <a href="https://arxiv.org/format/2406.03387">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the branching fraction ratios $R(D^{+})$ and $R(D^{*+})$ using muonic $蟿$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1063 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.03387v1-abstract-short" style="display: inline;"> The branching fraction ratios of $\overline{B}^0\to D^+蟿^-\overline谓_蟿$ and $\overline{B}^0\to D^{*+}蟿^-\overline谓_蟿$ decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb$^{-1}$ collected by the LHCb experiment in proton-proton collisions at $\sqrt{s} = 13$ TeV. The reconstructed final states are formed by combining… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03387v1-abstract-full').style.display = 'inline'; document.getElementById('2406.03387v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.03387v1-abstract-full" style="display: none;"> The branching fraction ratios of $\overline{B}^0\to D^+蟿^-\overline谓_蟿$ and $\overline{B}^0\to D^{*+}蟿^-\overline谓_蟿$ decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb$^{-1}$ collected by the LHCb experiment in proton-proton collisions at $\sqrt{s} = 13$ TeV. The reconstructed final states are formed by combining $D^+$ mesons with $蟿^-\to渭^-\overline谓_渭谓_蟿$ candidates, where the $D^+$ is reconstructed via the $D^+\to K^-蟺^+蟺^+$ decay. The results are \begin{align*} R(D^{+}) &= 0.249 \pm 0.043 \pm 0.047, R(D^{*+}) &= 0.402 \pm 0.081\pm 0.085, \end{align*} where the first uncertainties are statistical and the second systematic. The two measurements have a correlation coefficient of $-0.39$ and are compatible with the Standard Model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03387v1-abstract-full').style.display = 'none'; document.getElementById('2406.03387v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/Publications/LHCbProjectPublic/LHCb-PAPER-2024-007.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-007, CERN-EP-2024-125 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.03156">arXiv:2406.03156</a> <span> [<a href="https://arxiv.org/pdf/2406.03156">pdf</a>, <a href="https://arxiv.org/format/2406.03156">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.133.131902">10.1103/PhysRevLett.133.131902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of new charmonium(-like) states in $B^+ \to D^{*\pm} D^{\mp} K^+$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1062 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.03156v3-abstract-short" style="display: inline;"> A study of resonant structures in $B^{+}\rightarrow{D^{\ast+}D^{-}K^{+}}$ and $B^{+}\rightarrow{D^{\ast-}D^{+}K^{+}}$ decays is performed, using proton-proton collision data at centre-of-mass energies of $\sqrt{s}=7, 8$, and $13$ TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. A simultaneous amplitude fit is performed to the two channels with contribu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03156v3-abstract-full').style.display = 'inline'; document.getElementById('2406.03156v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.03156v3-abstract-full" style="display: none;"> A study of resonant structures in $B^{+}\rightarrow{D^{\ast+}D^{-}K^{+}}$ and $B^{+}\rightarrow{D^{\ast-}D^{+}K^{+}}$ decays is performed, using proton-proton collision data at centre-of-mass energies of $\sqrt{s}=7, 8$, and $13$ TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to $D^{\ast-}D^{+}$ and $D^{\ast+}D^{-}$ states linked by $C$ parity. This procedure allows the $C$-parities of resonances in the $D^{\ast\pm}D^{\mp}$ mass spectra to be determined. Four charmonium(-like) states are observed decaying into $D^{\ast\pm}D^{\mp}$: $畏_c(3945)$, $h_c(4000)$, $蠂_{c1}(4010)$ and $h_c(4300)$, with quantum numbers $J^{PC}$ equal to $0^{-+}$, $1^{+-}$, $1^{++}$ and $1^{+-}$, respectively. At least three of these states have not been observed previously. In addition, the existence of the $T_{\bar{c}\bar{s}0}^{*}(2870)^{0}$ and $T_{\bar{c}\bar{s}1}^{*}(2900)^{0}$ resonances in the $D^-K^+$ mass spectrum, already observed in the $B^+ \to D^+ D^- K^+$ decay, is confirmed in a different production channel. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03156v3-abstract-full').style.display = 'none'; document.getElementById('2406.03156v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-047.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-047, CERN-EP-2024-096 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 133 (2024) 131902 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.00235">arXiv:2406.00235</a> <span> [<a href="https://arxiv.org/pdf/2406.00235">pdf</a>, <a href="https://arxiv.org/format/2406.00235">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP08(2024)093">10.1007/JHEP08(2024)093 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Amplitude analysis of the radiative decay $B^0_s\to K^+K^-纬$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1061 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.00235v3-abstract-short" style="display: inline;"> A search for radiative decay of $B^0_s$ mesons to orbitally excited $K^+K^-$ states is performed using proton proton collisions recorded by the \mbox{LHCb}\xspace experiment, corresponding to an integrated luminosity of 9~fb$^{-1}$. The dikaon spectrum in the mass range $m_{KK}<2400$~{\ensuremath{\,\text{Me\kern -0.1em V\!/}c^2}\xspace} is dominated by the $蠁(1020)$ resonance that accounts for alm… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.00235v3-abstract-full').style.display = 'inline'; document.getElementById('2406.00235v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.00235v3-abstract-full" style="display: none;"> A search for radiative decay of $B^0_s$ mesons to orbitally excited $K^+K^-$ states is performed using proton proton collisions recorded by the \mbox{LHCb}\xspace experiment, corresponding to an integrated luminosity of 9~fb$^{-1}$. The dikaon spectrum in the mass range $m_{KK}<2400$~{\ensuremath{\,\text{Me\kern -0.1em V\!/}c^2}\xspace} is dominated by the $蠁(1020)$ resonance that accounts for almost 70$\%$ of the decay rate. Considering the possible contributions of $f_2{(1270)}$, $f'_2{(1525)}$ and $f_2{(2010)}$ meson states, the overall tensor contribution to the amplitude is measured to be \begin{equation} {\cal F}_{\{f_2\}}=16.8\pm 0.5\mathrm{~(stat.)}\pm0.7\mathrm{~(syst.)}\%,\nonumber \end{equation} mostly dominated by the $f'_2(1525)$ state. Several statistically equivalent solutions are obtained for the detailed resonant structure depending on whether the smaller amplitudes interfere destructively or constructively with the dominant amplitude. The preferred solution that corresponds to the lowest values of the fit fractions along with constructive interference leads to the relative branching ratio measurement \begin{equation} \frac{{\cal B}(B^0_s\to f'_2纬)}{{\cal B}(B^0_s\to蠁纬)}= 19.4^{+0.9}_{-0.8}\mathrm{~(stat.)}{}^{+1.4}_{-0.5}\mathrm{~(syst.)}\pm0.5\mathrm{~(\cal{B})}\%\nonumber, \end{equation} where the last uncertainty is due to the ratio of measured branching fractions to the $K^+K^-$ final state. This result represents the first observation of the radiative $B^0_s\to f'_2(1525)纬$ decay, which is the second radiative transition observed in the $B^0_s$ sector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.00235v3-abstract-full').style.display = 'none'; document.getElementById('2406.00235v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1791 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-002, CERN-EP-2024-115 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> https://link.springer.com/article/10.1007/JHEP08(2024)093 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.17347">arXiv:2405.17347</a> <span> [<a href="https://arxiv.org/pdf/2405.17347">pdf</a>, <a href="https://arxiv.org/format/2405.17347">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2024)026">10.1007/JHEP09(2024)026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Comprehensive analysis of local and nonlocal amplitudes in the $B^0\rightarrow K^{*0}渭^+渭^-$ decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1070 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.17347v2-abstract-short" style="display: inline;"> A comprehensive study of the local and nonlocal amplitudes contributing to the decay $B^0\rightarrow K^{*0}(\to K^+蟺^-) 渭^+渭^-$ is performed by analysing the phase-space distribution of the decay products. The analysis is based on $pp$ collision data corresponding to an integrated luminosity of 8.4fb$^{-1}$ collected by the LHCb experiment. This measurement employs for the first time a model of bo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17347v2-abstract-full').style.display = 'inline'; document.getElementById('2405.17347v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.17347v2-abstract-full" style="display: none;"> A comprehensive study of the local and nonlocal amplitudes contributing to the decay $B^0\rightarrow K^{*0}(\to K^+蟺^-) 渭^+渭^-$ is performed by analysing the phase-space distribution of the decay products. The analysis is based on $pp$ collision data corresponding to an integrated luminosity of 8.4fb$^{-1}$ collected by the LHCb experiment. This measurement employs for the first time a model of both one-particle and two-particle nonlocal amplitudes, and utilises the complete dimuon mass spectrum without any veto regions around the narrow charmonium resonances. In this way it is possible to explicitly isolate the local and nonlocal contributions and capture the interference between them. The results show that interference with nonlocal contributions, although larger than predicted, only has a minor impact on the Wilson Coefficients determined from the fit to the data. For the local contributions, the Wilson Coefficient $C_9$, responsible for vector dimuon currents, exhibits a $2.1蟽$ deviation from the Standard Model expectation. The Wilson Coefficients $C_{10}$, $C_{9}'$ and $C_{10}'$ are all in better agreement than $C_{9}$ with the Standard Model and the global significance is at the level of $1.5蟽$. The model used also accounts for nonlocal contributions from $B^{0}\to K^{*0}\left[蟿^+蟿^-\to 渭^+渭^-\right]$ rescattering, resulting in the first direct measurement of the $b s蟿蟿$ vector effective-coupling $C_{9蟿}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17347v2-abstract-full').style.display = 'none'; document.getElementById('2405.17347v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-011.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-011, CERN-EP-2024-122 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP09(2024)026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.13103">arXiv:2405.13103</a> <span> [<a href="https://arxiv.org/pdf/2405.13103">pdf</a>, <a href="https://arxiv.org/format/2405.13103">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.072014">10.1103/PhysRevD.110.072014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the lepton-flavor violating decay $B^0_s\to蠁渭^\pm蟿^\mp$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1062 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.13103v2-abstract-short" style="display: inline;"> A search for the lepton-flavor violating decays $B^0_s\to蠁渭^\pm蟿^\mp$ is presented, using a sample of proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of $9\,\text{fb}^{-1}$. The $蟿$ leptons are selected using decays with three charged pions. No significant excess is observed, and an upper l… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13103v2-abstract-full').style.display = 'inline'; document.getElementById('2405.13103v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.13103v2-abstract-full" style="display: none;"> A search for the lepton-flavor violating decays $B^0_s\to蠁渭^\pm蟿^\mp$ is presented, using a sample of proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of $9\,\text{fb}^{-1}$. The $蟿$ leptons are selected using decays with three charged pions. No significant excess is observed, and an upper limit on the branching fraction is determined to be ${\cal B}( B^0_s\to蠁渭^\pm蟿^\mp) < 1.0\times 10^{-5}$ at 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.13103v2-abstract-full').style.display = 'none'; document.getElementById('2405.13103v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1788 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-006, CERN-EP-2024-114 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D110 (2024) 7 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.12688">arXiv:2405.12688</a> <span> [<a href="https://arxiv.org/pdf/2405.12688">pdf</a>, <a href="https://arxiv.org/format/2405.12688">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP08(2024)132">10.1007/JHEP08(2024)132 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of $b$-hadron decays to $\mathit螞_{c}^+ h^- h^{\prime -}$ final states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1072 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.12688v3-abstract-short" style="display: inline;"> Decays of $\mathit螢_{b}^-$ and $\mathit惟_{b}^-$ baryons to $\mathit螞_{c}^+ h^- h^{\prime -}$ final states, with $h^- h^{\prime -}$ being $蟺^-蟺^-$, $K^-蟺^-$ and $K^-K^-$ meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of $8.7\,\mathrm{fb}^{-1}$ of $pp$ collisions collected at centre-of-mass energies… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.12688v3-abstract-full').style.display = 'inline'; document.getElementById('2405.12688v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.12688v3-abstract-full" style="display: none;"> Decays of $\mathit螢_{b}^-$ and $\mathit惟_{b}^-$ baryons to $\mathit螞_{c}^+ h^- h^{\prime -}$ final states, with $h^- h^{\prime -}$ being $蟺^-蟺^-$, $K^-蟺^-$ and $K^-K^-$ meson pairs, are searched for using data collected with the LHCb detector. The data sample studied corresponds to an integrated luminosity of $8.7\,\mathrm{fb}^{-1}$ of $pp$ collisions collected at centre-of-mass energies $\sqrt{s} = 7$, $8$ and $13\,\mathrm{Te\kern -0.1em V}$. The products of the relative branching fractions and fragmentation fractions for each signal mode, relative to the $B^- \to \mathit螞_{c}^+ \overline{p} 蟺^-$ mode, are measured, with $\mathit螢_{b}^- \to\mathit螞_{c}^+ K^- 蟺^-$, $\mathit螢_{b}^- \to\mathit螞_{c}^+ K^- K^-$ and $\mathit惟_{b}^- \to\mathit螞_{c}^+ K^- K^-$ decays being observed at over $5\,蟽$ significance. The $\mathit螢_{b}^- \to\mathit螞_{c}^+ K^- 蟺^-$ mode is also used to measure the $\mathit螢_{b}^-$ production asymmetry, which is found to be consistent with zero. In addition, the $B^- \to \mathit螞_{c}^+ \overline{p} K^-$ decay is observed for the first time, and its branching fraction is measured relative to that of the $B^- \to \mathit螞_{c}^+ \overline{p} 蟺^-$ mode. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.12688v3-abstract-full').style.display = 'none'; document.getElementById('2405.12688v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1789</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-116, LHCb-PAPER-2024-013 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 08 (2024) 132 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.11324">arXiv:2405.11324</a> <span> [<a href="https://arxiv.org/pdf/2405.11324">pdf</a>, <a href="https://arxiv.org/format/2405.11324">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP09(2024)082">10.1007/JHEP09(2024)082 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Transverse polarization measurement of $螞$ hyperons in $p$Ne collisions at $\sqrt{s_{NN}}$ = 68.4 GeV with the $\mbox{LHCb}$ detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1065 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.11324v3-abstract-short" style="display: inline;"> A measurement of the transverse polarization of the $螞$ and $\bar螞$ hyperons in $p$Ne fixed-target collisions at $\sqrt{s_{NN}}$ = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay $螞\rightarrow p 蟺^-$ together with its charge conjugated process, the integrated values measured are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.11324v3-abstract-full').style.display = 'inline'; document.getElementById('2405.11324v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.11324v3-abstract-full" style="display: none;"> A measurement of the transverse polarization of the $螞$ and $\bar螞$ hyperons in $p$Ne fixed-target collisions at $\sqrt{s_{NN}}$ = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay $螞\rightarrow p 蟺^-$ together with its charge conjugated process, the integrated values measured are $$ P_螞 = 0.029 \pm 0.019 \, (\rm{stat}) \pm 0.012 \, (\rm{syst}) \, , $$ $$ P_{\bar螞} = 0.003 \pm 0.023 \, (\rm{stat}) \pm 0.014 \,(\rm{syst}) \,. $$ Furthermore, the results are shown as a function of the Feynman~$x$~variable, transverse momentum, pseudorapidity and rapidity of the hyperons, and are compared with previous measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.11324v3-abstract-full').style.display = 'none'; document.getElementById('2405.11324v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/3120 (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-121, LHCb-PAPER-2024-009 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 09 (2024) 082 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.06556">arXiv:2405.06556</a> <span> [<a href="https://arxiv.org/pdf/2405.06556">pdf</a>, <a href="https://arxiv.org/format/2405.06556">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.133.101803">10.1103/PhysRevLett.133.101803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for time-dependent $CP$ violation in $D^0 \rightarrow 蟺^+ 蟺^- 蟺^0$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1064 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.06556v2-abstract-short" style="display: inline;"> A measurement of time-dependent $CP$ violation in $D^0 \rightarrow 蟺^+ 蟺^- 蟺^0$ decays using a $pp$ collision data sample collected by the LHCb experiment in 2012 and from 2015 to 2018, corresponding to an integrated luminosity of 7.7$\,\mathrm{fb}^{-1}$, is presented. The initial flavour of each $D^0$ candidate is determined from the charge of the pion produced in the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.06556v2-abstract-full').style.display = 'inline'; document.getElementById('2405.06556v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.06556v2-abstract-full" style="display: none;"> A measurement of time-dependent $CP$ violation in $D^0 \rightarrow 蟺^+ 蟺^- 蟺^0$ decays using a $pp$ collision data sample collected by the LHCb experiment in 2012 and from 2015 to 2018, corresponding to an integrated luminosity of 7.7$\,\mathrm{fb}^{-1}$, is presented. The initial flavour of each $D^0$ candidate is determined from the charge of the pion produced in the $D^*(2010)^+ \rightarrow D^0 蟺^+$ decay. The decay $D^0 \rightarrow K^- 蟺^+ 蟺^0$ is used as a control channel to validate the measurement procedure. The gradient of the time-dependent $CP$ asymmetry, $螖Y$, in $D^0 \rightarrow 蟺^+ 蟺^- 蟺^0$ decays is measured to be \begin{equation*} 螖Y = (-1.3 \pm 6.3 \pm 2.4) \times 10^{-4}, \end{equation*} where the first uncertainty is statistical and the second is systematic, which is compatible with $CP$ conservation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.06556v2-abstract-full').style.display = 'none'; document.getElementById('2405.06556v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1787</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-003, CERN-EP-2024-111 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 133 (2024) 101803 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.00098">arXiv:2405.00098</a> <span> [<a href="https://arxiv.org/pdf/2405.00098">pdf</a>, <a href="https://arxiv.org/format/2405.00098">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP08(2024)165">10.1007/JHEP08(2024)165 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Amplitude analysis and branching fraction measurement of $B^{+}\to D^{*-}D^{+}_{s}蟺^{+}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1057 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.00098v2-abstract-short" style="display: inline;"> The decays of the $B^{+}$ meson to the final state $D^{*-}D^{+}_{s}蟺^{+}$ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$. The ratio of branching fractions of the $B^{+}\to D^{*-}D^{+}_{s}蟺^{+}$ and $B^{0}\to D^{*-}D^{+}_{s}$ decays is measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.00098v2-abstract-full').style.display = 'inline'; document.getElementById('2405.00098v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.00098v2-abstract-full" style="display: none;"> The decays of the $B^{+}$ meson to the final state $D^{*-}D^{+}_{s}蟺^{+}$ are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$. The ratio of branching fractions of the $B^{+}\to D^{*-}D^{+}_{s}蟺^{+}$ and $B^{0}\to D^{*-}D^{+}_{s}$ decays is measured to be $0.173\pm 0.006\pm 0.010$, where the first uncertainty is statistical and the second is systematic. Using partially reconstructed $D^{*+}_{s}\to D^{+}_{s}纬$ and $D^{+}_{s}蟺^{0}$ decays, the ratio of branching fractions between the $B^{+}\to D^{*-}D^{*+}_{s}蟺^{+}$ and $B^{+}\to D^{*-}D^{+}_{s}蟺^{+}$ decays is determined as $1.31\pm 0.07\pm 0.14$. An amplitude analysis of the $B^{+}\to D^{*-}D^{+}_{s}蟺^{+}$ decay is performed for the first time, revealing dominant contributions from known excited charm resonances decaying to the $D^{*-}蟺^{+}$ final state. No significant evidence of exotic contributions in the $D^{+}_{s}蟺^{+}$ or $D^{*-}D^{+}_{s}$ channels is found. The fit fraction of the scalar state $T_{c\bar{s} 0}^{\ast}(2900)^{++}$ observed in the $B^{+}\to D^{-}D^{+}_{s}蟺^{+}$ decay is determined to be less than 2.3% at a 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.00098v2-abstract-full').style.display = 'none'; document.getElementById('2405.00098v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2024-001.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2024-001, CERN-EP-2024-110 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP08 (2024) 165 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.19510">arXiv:2404.19510</a> <span> [<a href="https://arxiv.org/pdf/2404.19510">pdf</a>, <a href="https://arxiv.org/format/2404.19510">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.L031104">10.1103/PhysRevD.110.L031104 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First observation of $螞_{b}^{0} \rightarrow 危_c^{(*)++} D^{(*)-} K^{-}$ decays </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1067 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.19510v3-abstract-short" style="display: inline;"> The four decays, $螞_{b}^{0} \rightarrow 危_c^{(*)++} D^{(*)-} K^{-}$, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of $13\,\rm{TeV}$, corresponding to an integrated luminosity of $6\,\rm{fb}^{-1}$. By considering the $螞_b^0 \rightarrow 螞_c^{+} \overline{D}^0 K^{-}$ decay as reference channel, the following branching f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19510v3-abstract-full').style.display = 'inline'; document.getElementById('2404.19510v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.19510v3-abstract-full" style="display: none;"> The four decays, $螞_{b}^{0} \rightarrow 危_c^{(*)++} D^{(*)-} K^{-}$, are observed for the first time using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of $13\,\rm{TeV}$, corresponding to an integrated luminosity of $6\,\rm{fb}^{-1}$. By considering the $螞_b^0 \rightarrow 螞_c^{+} \overline{D}^0 K^{-}$ decay as reference channel, the following branching fraction ratios are measured to be $$\frac{\cal{B} (螞_{b}^{0} \rightarrow 危_{c}^{++} \rm{D}^{-} {K}^{-})}{\cal{B}(螞_{b}^{0} \rightarrow 螞_c^{+} \rm \overline{D}^0 {K}^{-})} = {0.282}\pm{0.016}\pm{0.016}\pm{0.005}, \frac{\cal{B}(螞_{b}^{0} \rightarrow 危_{c}^{*++} \rm {D}^{-} {K}^{-})}{\cal{B}(螞_{b}^{0} \rightarrow 危_c^{++} \rm {D}^{-} {K}^{-})} = {0.460}\pm{0.052}\pm{0.028}, \frac{\cal{B}(螞_{b}^{0} \rightarrow 危_{c}^{++} \rm {D}^{*-} {K}^{-})}{\cal{B}(螞_{b}^{0} \rightarrow 危_c^{++} \rm {D}^{-} {K}^{-})} = {2.261}\pm{0.202}\pm{0.129}\pm{0.046}, \frac{\cal{B}(螞_{b}^{0} \rightarrow 危_{c}^{*++} \rm D^{*-} K^{-})}{\cal{B}(螞_{b}^{0} \rightarrow 危_c^{++} \rm D^{-} K^{-})} = {0.896}\pm{0.137}\pm{0.066}\pm{0.018},$$ where the first uncertainties are statistical, the second are systematic, and the third are due to uncertainties in the branching fractions of intermediate particle decays. These initial observations mark the beginning of pentaquark searches in these modes, with more data set to become available following the LHCb upgrade. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19510v3-abstract-full').style.display = 'none'; document.getElementById('2404.19510v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-044.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-044, CERN-EP-2024-098 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110 (2024) L031104 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.07131">arXiv:2404.07131</a> <span> [<a href="https://arxiv.org/pdf/2404.07131">pdf</a>, <a href="https://arxiv.org/format/2404.07131">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.110.032001">10.1103/PhysRevD.110.032001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for prompt production of pentaquarks in charm hadron final states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a> , et al. (1090 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.07131v3-abstract-short" style="display: inline;"> A search for hidden-charm pentaquark states decaying to a range of $危_{c}\bar{D}$ and $螞_{c}\bar{D}$ final states, as well as doubly-charmed pentaquark states to $危_{c}D$ and $螞_{c}^{+}D$, is made using samples of proton-proton collision data corresponding to an integrated luminosity of $5.7fb^{-1}$ recorded by the LHCb detector at $\sqrt{s} = 13Te\kern -0.1em V$. Since no significant signals are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.07131v3-abstract-full').style.display = 'inline'; document.getElementById('2404.07131v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.07131v3-abstract-full" style="display: none;"> A search for hidden-charm pentaquark states decaying to a range of $危_{c}\bar{D}$ and $螞_{c}\bar{D}$ final states, as well as doubly-charmed pentaquark states to $危_{c}D$ and $螞_{c}^{+}D$, is made using samples of proton-proton collision data corresponding to an integrated luminosity of $5.7fb^{-1}$ recorded by the LHCb detector at $\sqrt{s} = 13Te\kern -0.1em V$. Since no significant signals are found, upper limits are set on the pentaquark yields relative to that of the $螞_{c}^{+}$ baryon in the $螞_{c}^{+}\to pK^{-}蟺^{+}$ decay mode. The known pentaquark states are also investigated, and their signal yields are found to be consistent with zero in all cases. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.07131v3-abstract-full').style.display = 'none'; document.getElementById('2404.07131v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-018.html (LHCb public pages)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-018, CERN-EP-2024-071 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110 (2024) 032001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.03375">arXiv:2404.03375</a> <span> [<a href="https://arxiv.org/pdf/2404.03375">pdf</a>, <a href="https://arxiv.org/format/2404.03375">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2024)101">10.1007/JHEP07(2024)101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the $B_s^0 \rightarrow 渭^+渭^-纬$ decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/hep-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/hep-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/hep-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/hep-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/hep-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/hep-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/hep-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/hep-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/hep-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/hep-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/hep-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/hep-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/hep-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/hep-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/hep-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/hep-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/hep-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/hep-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/hep-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1068 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.03375v2-abstract-short" style="display: inline;"> A search for the fully reconstructed $B_s^0 \rightarrow 渭^+渭^-纬$ decay is performed at the LHCb experiment using proton-proton collisions at $\sqrt{s}=13$\,TeV corresponding to an integrated luminosity of $5.4\,\mathrm{fb^{-1}}$. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set \begin{align} {\cal B}(B_s^0 \rightarrow 渭^+渭^-纬) <… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.03375v2-abstract-full').style.display = 'inline'; document.getElementById('2404.03375v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.03375v2-abstract-full" style="display: none;"> A search for the fully reconstructed $B_s^0 \rightarrow 渭^+渭^-纬$ decay is performed at the LHCb experiment using proton-proton collisions at $\sqrt{s}=13$\,TeV corresponding to an integrated luminosity of $5.4\,\mathrm{fb^{-1}}$. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set \begin{align} {\cal B}(B_s^0 \rightarrow 渭^+渭^-纬) < 4.2\times10^{-8},~&m(渭渭)\in[2m_渭,~1.70]\,\mathrm{GeV/c^2} ,\nonumber {\cal B}(B_s^0 \rightarrow 渭^+渭^-纬) < 7.7\times10^{-8},~&m(渭渭)\in[1.70,~2.88]\,\mathrm{GeV/c^2},\nonumber {\cal B}(B_s^0 \rightarrow 渭^+渭^-纬) < 4.2\times10^{-8},~&m(渭渭)\in[3.92 ,~m_{B_s^0}]\,\mathrm{GeV/c^2},\nonumber \end{align} at 95\% confidence level. Additionally, upper limits are set on the branching fraction in the $[2m_渭,~1.70]\,\mathrm{GeV/c^2}$ dimuon mass region excluding the contribution from the intermediate $蠁(1020)$ meson, and in the region combining all dimuon-mass intervals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.03375v2-abstract-full').style.display = 'none'; document.getElementById('2404.03375v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-045.html</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LHCb-PAPER-2023-045, CERN-EP-2024-065 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 07 (2024) 101 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Adeva%2C+B&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Adeva%2C+B&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Adeva%2C+B&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 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