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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <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/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/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-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/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adefisoye%2C+A+A">A. A. Adefisoye</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-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/2410.19016">arXiv:2410.19016</a> <span> [<a href="https://arxiv.org/pdf/2410.19016">pdf</a>, <a href="https://arxiv.org/format/2410.19016">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey 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"> Neutrinoless Double Beta Decay Sensitivity of the XLZD Rare Event Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=XLZD+Collaboration"> XLZD Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Abe%2C+K">K. Abe</a>, <a href="/search/nucl-ex?searchtype=author&query=Adrover%2C+M">M. Adrover</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+A">S. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Musalhi%2C+A+K+A">A. K. Al Musalhi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alder%2C+F">F. Alder</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaral%2C+D+W+P">D. W. P. Amaral</a>, <a href="/search/nucl-ex?searchtype=author&query=Amarasinghe%2C+C+S">C. S. Amarasinghe</a>, <a href="/search/nucl-ex?searchtype=author&query=Ames%2C+A">A. Ames</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieu%2C+B">B. Andrieu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelides%2C+N">N. Angelides</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Antunovic%2C+B">B. Antunovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a>, <a href="/search/nucl-ex?searchtype=author&query=Armstrong%2C+J+E">J. E. Armstrong</a>, <a href="/search/nucl-ex?searchtype=author&query=Arthurs%2C+M">M. Arthurs</a>, <a href="/search/nucl-ex?searchtype=author&query=Babicz%2C+M">M. Babicz</a>, <a href="/search/nucl-ex?searchtype=author&query=Bajpai%2C+D">D. Bajpai</a>, <a href="/search/nucl-ex?searchtype=author&query=Baker%2C+A">A. Baker</a>, <a href="/search/nucl-ex?searchtype=author&query=Balzer%2C+M">M. Balzer</a>, <a href="/search/nucl-ex?searchtype=author&query=Bang%2C+J">J. Bang</a> , et al. (419 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="2410.19016v1-abstract-short" style="display: inline;"> The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60 to 80 t capable of probing the remaining WIMP-nucleon interaction parameter space down to the so-called neutrino fog. In this work we show that, based on the performance of currently operating detectors using the same technology and a realistic reduction of radioactivity in detector materials,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.19016v1-abstract-full').style.display = 'inline'; document.getElementById('2410.19016v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.19016v1-abstract-full" style="display: none;"> The XLZD collaboration is developing a two-phase xenon time projection chamber with an active mass of 60 to 80 t capable of probing the remaining WIMP-nucleon interaction parameter space down to the so-called neutrino fog. In this work we show that, based on the performance of currently operating detectors using the same technology and a realistic reduction of radioactivity in detector materials, such an experiment will also be able to competitively search for neutrinoless double beta decay in $^{136}$Xe using a natural-abundance xenon target. XLZD can reach a 3$蟽$ discovery potential half-life of 5.7$\times$10$^{27}$ yr (and a 90% CL exclusion of 1.3$\times$10$^{28}$ yr) with 10 years of data taking, corresponding to a Majorana mass range of 7.3-31.3 meV (4.8-20.5 meV). XLZD will thus exclude the inverted neutrino mass ordering parameter space and will start to probe the normal ordering region for most of the nuclear matrix elements commonly considered by the community. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.19016v1-abstract-full').style.display = 'none'; document.getElementById('2410.19016v1-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">29 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.02877">arXiv:2408.02877</a> <span> [<a href="https://arxiv.org/pdf/2408.02877">pdf</a>, <a href="https://arxiv.org/format/2408.02877">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="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey 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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> First Measurement of Solar $^8$B Neutrinos via Coherent Elastic Neutrino-Nucleus Scattering with XENONnT </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Abe%2C+K">K. Abe</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+A">S. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieu%2C+B">B. Andrieu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+D+A">D. Ant贸n Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bazyk%2C+M">M. Bazyk</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellagamba%2C+L">L. Bellagamba</a>, <a href="/search/nucl-ex?searchtype=author&query=Biondi%2C+R">R. Biondi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bismark%2C+A">A. Bismark</a>, <a href="/search/nucl-ex?searchtype=author&query=Boese%2C+K">K. Boese</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/nucl-ex?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+C">C. Cai</a>, <a href="/search/nucl-ex?searchtype=author&query=Capelli%2C+C">C. Capelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Ch%C3%A1vez%2C+A+P+C">A. P. Cimental Ch谩vez</a>, <a href="/search/nucl-ex?searchtype=author&query=Colijn%2C+A+P">A. P. Colijn</a>, <a href="/search/nucl-ex?searchtype=author&query=Conrad%2C+J">J. Conrad</a>, <a href="/search/nucl-ex?searchtype=author&query=Cuenca-Garc%C3%ADa%2C+J+J">J. J. Cuenca-Garc铆a</a> , et al. (142 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="2408.02877v1-abstract-short" style="display: inline;"> We present the first measurement of nuclear recoils from solar $^8$B neutrinos via coherent elastic neutrino-nucleus scattering with the XENONnT dark matter experiment. The central detector of XENONnT is a low-background, two-phase time projection chamber with a 5.9\,t sensitive liquid xenon target. A blind analysis with an exposure of 3.51\,t$\times$y resulted in 37 observed events above 0.5\,keV… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02877v1-abstract-full').style.display = 'inline'; document.getElementById('2408.02877v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.02877v1-abstract-full" style="display: none;"> We present the first measurement of nuclear recoils from solar $^8$B neutrinos via coherent elastic neutrino-nucleus scattering with the XENONnT dark matter experiment. The central detector of XENONnT is a low-background, two-phase time projection chamber with a 5.9\,t sensitive liquid xenon target. A blind analysis with an exposure of 3.51\,t$\times$y resulted in 37 observed events above 0.5\,keV, with ($26.4^{+1.4}_{-1.3}$) events expected from backgrounds. The background-only hypothesis is rejected with a statistical significance of 2.73\,$蟽$. The measured $^8$B solar neutrino flux of $(4.7_{-2.3}^{+3.6})\times 10^6\,\mathrm{cm}^{-2}\mathrm{s}^{-1}$ is consistent with results from dedicated solar neutrino experiments. The measured neutrino flux-weighted CE$谓$NS cross-section on Xe of $(1.1^{+0.8}_{-0.5})\times10^{-39}\,\mathrm{cm}^2$ is consistent with the Standard Model prediction. This is the first direct measurement of nuclear recoils from solar neutrinos with a dark matter detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02877v1-abstract-full').style.display = 'none'; document.getElementById('2408.02877v1-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.02500">arXiv:2408.02500</a> <span> [<a href="https://arxiv.org/pdf/2408.02500">pdf</a>, <a href="https://arxiv.org/format/2408.02500">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="Quantum Physics">quant-ph</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/s10052-024-13510-1">10.1140/epjc/s10052-024-13510-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for Pauli Exclusion Principle Violations with Gator at LNGS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Biondi%2C+R">R. Biondi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bismark%2C+A">A. Bismark</a>, <a href="/search/nucl-ex?searchtype=author&query=Clozza%2C+A">A. Clozza</a>, <a href="/search/nucl-ex?searchtype=author&query=Curceanu%2C+C">C. Curceanu</a>, <a href="/search/nucl-ex?searchtype=author&query=Galloway%2C+M">M. Galloway</a>, <a href="/search/nucl-ex?searchtype=author&query=Napolitano%2C+F">F. Napolitano</a>, <a href="/search/nucl-ex?searchtype=author&query=Piastra%2C+F">F. Piastra</a>, <a href="/search/nucl-ex?searchtype=author&query=Piscicchia%2C+K">K. Piscicchia</a>, <a href="/search/nucl-ex?searchtype=author&query=Porcelli%2C+A">A. Porcelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+D+R">D. Ram铆rez Garc铆a</a> </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="2408.02500v2-abstract-short" style="display: inline;"> The Pauli Exclusion Principle (PEP) appears from fundamental symmetries in quantum field theories, but its physical origin is still to be understood. High-precision experimental searches for small PEP violations permit testing key assumptions of the Standard Model with high sensitivity. We report on a dedicated measurement with Gator, a low-background, high-purity germanium detector operated at th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02500v2-abstract-full').style.display = 'inline'; document.getElementById('2408.02500v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.02500v2-abstract-full" style="display: none;"> The Pauli Exclusion Principle (PEP) appears from fundamental symmetries in quantum field theories, but its physical origin is still to be understood. High-precision experimental searches for small PEP violations permit testing key assumptions of the Standard Model with high sensitivity. We report on a dedicated measurement with Gator, a low-background, high-purity germanium detector operated at the Laboratori Nazionali del Gran Sasso, aimed at testing PEP-violating atomic transitions in lead. The experimental technique, relying on forming a new symmetry state by introducing electrons into the pre-existing electron system through a direct current, satisfies the conditions of the Messiah-Greenberg superselection rule. No PEP violation has been observed, and an upper limit on the PEP violation probability of $尾^2/2 < 4.8 \cdot 10^{-29}$ (90% CL) is set. This improves the previous constraint from a comparable measurement by more than one order of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.02500v2-abstract-full').style.display = 'none'; document.getElementById('2408.02500v2-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 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">Journal ref:</span> Eur. Phys. J. C 84, 1137 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.14975">arXiv:2402.14975</a> <span> [<a href="https://arxiv.org/pdf/2402.14975">pdf</a>, <a href="https://arxiv.org/format/2402.14975">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 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.132.242301">10.1103/PhysRevLett.132.242301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Modification of $蠂_{c1}$(3872) and $蠄$(2$S$) production in $p$Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1082 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="2402.14975v2-abstract-short" style="display: inline;"> The LHCb collaboration measures production of the exotic hadron $蠂_{c1}$(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state $蠄$(2$S$) suggests that the exotic $蠂_{c1}$(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may mod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.14975v2-abstract-full').style.display = 'inline'; document.getElementById('2402.14975v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.14975v2-abstract-full" style="display: none;"> The LHCb collaboration measures production of the exotic hadron $蠂_{c1}$(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state $蠄$(2$S$) suggests that the exotic $蠂_{c1}$(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify $蠂_{c1}$(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.14975v2-abstract-full').style.display = 'none'; document.getElementById('2402.14975v2-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 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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-2023-026.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-2023-026, CERN-EP-2024-033 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 132 (2024) 242301 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.11342">arXiv:2401.11342</a> <span> [<a href="https://arxiv.org/pdf/2401.11342">pdf</a>, <a href="https://arxiv.org/format/2401.11342">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 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/JHEP04(2024)111">10.1007/JHEP04(2024)111 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prompt and nonprompt $蠄(2S)$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a> , et al. (1079 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="2401.11342v2-abstract-short" style="display: inline;"> The production of $蠄(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. The prompt and nonprompt $蠄(2S)$ production cross-sections and the ratio of the $蠄(2S)$ to $J/蠄$ cross-section are measured as a function of the meson transverse mom… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11342v2-abstract-full').style.display = 'inline'; document.getElementById('2401.11342v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.11342v2-abstract-full" style="display: none;"> The production of $蠄(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. The prompt and nonprompt $蠄(2S)$ production cross-sections and the ratio of the $蠄(2S)$ to $J/蠄$ cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. The production of prompt $蠄(2S)$ is observed to be more suppressed compared to $pp$ collisions than the prompt $J/蠄$ production, while the nonprompt productions have similar suppression factors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.11342v2-abstract-full').style.display = 'none'; document.getElementById('2401.11342v2-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 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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-2023-024.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-2023-024, CERN-EP-2023-293 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP 04 (2024) 111 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.09985">arXiv:2311.09985</a> <span> [<a href="https://arxiv.org/pdf/2311.09985">pdf</a>, <a href="https://arxiv.org/format/2311.09985">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 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/PhysRevC.109.054908">10.1103/PhysRevC.109.054908 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of forward charged hadron flow harmonics in peripheral PbPb collisions at $\sqrt{s_{NN}}=5.02$ TeV with the LHCb detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1079 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="2311.09985v2-abstract-short" style="display: inline;"> Flow harmonic coefficients, $v_n$, which are the key to studying the hydrodynamics of the quark-gluon plasma (QGP) created in heavy-ion collisions, have been measured in various collision systems and kinematic regions and using various particle species. The study of flow harmonics in a wide pseudorapidity range is particularly valuable to understand the temperature dependence of the shear viscosit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09985v2-abstract-full').style.display = 'inline'; document.getElementById('2311.09985v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.09985v2-abstract-full" style="display: none;"> Flow harmonic coefficients, $v_n$, which are the key to studying the hydrodynamics of the quark-gluon plasma (QGP) created in heavy-ion collisions, have been measured in various collision systems and kinematic regions and using various particle species. The study of flow harmonics in a wide pseudorapidity range is particularly valuable to understand the temperature dependence of the shear viscosity to entropy density ratio of the QGP. This paper presents the first LHCb results of the second- and the third-order flow harmonic coefficients of charged hadrons as a function of transverse momentum in the forward region, corresponding to pseudorapidities between 2.0 and 4.9, using the data collected from PbPb collisions in 2018 at a center-of-mass energy of $5.02$ TeV. The coefficients measured using the two-particle angular correlation analysis method are smaller than the central-pseudorapidity measurements at ALICE and ATLAS from the same collision system but share similar features. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09985v2-abstract-full').style.display = 'none'; document.getElementById('2311.09985v2-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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-2023-031.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-2023-031, CERN-EP-2023-240 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 109 (2024) 054908 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.08490">arXiv:2311.08490</a> <span> [<a href="https://arxiv.org/pdf/2311.08490">pdf</a>, <a href="https://arxiv.org/format/2311.08490">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 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.L031105">10.1103/PhysRevD.110.L031105 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of strangeness enhancement with charmed mesons in high-multiplicity $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afsharnia%2C+H">H. Afsharnia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a> , et al. (1085 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="2311.08490v2-abstract-short" style="display: inline;"> The production of prompt $D^+_{s}$ and $D^+$ mesons is measured by the LHCb experiment in proton-lead ($p\mathrm{Pb}$) collisions in both the forward ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV. The nuclear modification factors of both $D^+_{s}$ and $D^+$ mesons are determined as a function of tra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08490v2-abstract-full').style.display = 'inline'; document.getElementById('2311.08490v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.08490v2-abstract-full" style="display: none;"> The production of prompt $D^+_{s}$ and $D^+$ mesons is measured by the LHCb experiment in proton-lead ($p\mathrm{Pb}$) collisions in both the forward ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV. The nuclear modification factors of both $D^+_{s}$ and $D^+$ mesons are determined as a function of transverse momentum, $p_{\mathrm{T}}$, and rapidity. In addition, the $D^+_{s}$ to $D^+$ cross-section ratio is measured as a function of the charged particle multiplicity in the event. An enhanced $D^+_{s}$ to $D^+$ production in high-multiplicity events is observed for the whole measured $p_{\mathrm{T}}$ range, in particular at low $p_{\mathrm{T}}$ and backward rapidity, where the significance exceeds six standard deviations. This constitutes the first observation of strangeness enhancement in charm quark hadronization in high-multiplicity $p\mathrm{Pb}$ collisions. The results are also qualitatively consistent with the presence of quark coalescence as an additional charm quark hadronization mechanism in high-multiplicity proton-lead collisions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.08490v2-abstract-full').style.display = 'none'; document.getElementById('2311.08490v2-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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-2023-021.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-2023-021, CERN-EP-2023-236 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110, L031105 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.01562">arXiv:2311.01562</a> <span> [<a href="https://arxiv.org/pdf/2311.01562">pdf</a>, <a href="https://arxiv.org/format/2311.01562">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 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.132.102302">10.1103/PhysRevLett.132.102302 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fraction of $蠂_c$ decays in prompt $J/蠄$ production measured in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1078 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="2311.01562v1-abstract-short" style="display: inline;"> The fraction of $蠂_{c1}$ and $蠂_{c2}$ decays in the prompt $J/蠄$ yield, $F_{蠂c}=蟽_{蠂_c \to J/蠄}/蟽_{J/蠄}$, is measured by the LHCb detector in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV. The study covers the forward ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) rapidity regions, where $y^*$ is the $J/蠄$ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples co… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01562v1-abstract-full').style.display = 'inline'; document.getElementById('2311.01562v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.01562v1-abstract-full" style="display: none;"> The fraction of $蠂_{c1}$ and $蠂_{c2}$ decays in the prompt $J/蠄$ yield, $F_{蠂c}=蟽_{蠂_c \to J/蠄}/蟽_{J/蠄}$, is measured by the LHCb detector in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV. The study covers the forward ($1.5<y^*<4.0$) and backward ($-5.0<y^*<-2.5$) rapidity regions, where $y^*$ is the $J/蠄$ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples correspond to integrated luminosities of 13.6 $\pm$ 0.3 nb$^{-1}$ and 20.8 $\pm$ 0.5 nb$^{-1}$, respectively. The result is presented as a function of the $J/蠄$ transverse momentum $p_{T,J/蠄}$ in the range 1$<p_{T, J/蠄}<20$ GeV/$c$. The $F_{蠂c}$ fraction at forward rapidity is compatible with the LHCb measurement performed in $pp$ collisions at $\sqrt{s}=7$ TeV, whereas the result at backward rapidity is 2.4 $蟽$ larger than in the forward region for $1<p_{T, J/蠄}<3$ GeV/$c$. The increase of $F_{蠂c}$ at low $p_{T, J/蠄}$ at backward rapidity is compatible with the suppression of the $蠄$(2S) contribution to the prompt $J/蠄$ yield. The lack of in-medium dissociation of $蠂_c$ states observed in this study sets an upper limit of 180 MeV on the free energy available in these pPb collisions to dissociate or inhibit charmonium state formation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.01562v1-abstract-full').style.display = 'none'; document.getElementById('2311.01562v1-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </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-2023-028.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-2023-028, CERN-EP-2023-224 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 132 (2024) 102302 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.17326">arXiv:2310.17326</a> <span> [<a href="https://arxiv.org/pdf/2310.17326">pdf</a>, <a href="https://arxiv.org/format/2310.17326">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"> Studies of $畏$ and $畏'$ production in $pp$ and $p$Pb collisions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=LHCb+collaboration"> LHCb collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Aaij%2C+R">R. Aaij</a>, <a href="/search/nucl-ex?searchtype=author&query=Abdelmotteleb%2C+A+S+W">A. S. W. Abdelmotteleb</a>, <a href="/search/nucl-ex?searchtype=author&query=Beteta%2C+C+A">C. Abellan Beteta</a>, <a href="/search/nucl-ex?searchtype=author&query=Abudin%C3%A9n%2C+F">F. Abudin茅n</a>, <a href="/search/nucl-ex?searchtype=author&query=Ackernley%2C+T">T. Ackernley</a>, <a href="/search/nucl-ex?searchtype=author&query=Adeva%2C+B">B. Adeva</a>, <a href="/search/nucl-ex?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Agapopoulou%2C+C">C. Agapopoulou</a>, <a href="/search/nucl-ex?searchtype=author&query=Aidala%2C+C+A">C. A. Aidala</a>, <a href="/search/nucl-ex?searchtype=author&query=Ajaltouni%2C+Z">Z. Ajaltouni</a>, <a href="/search/nucl-ex?searchtype=author&query=Akar%2C+S">S. Akar</a>, <a href="/search/nucl-ex?searchtype=author&query=Akiba%2C+K">K. Akiba</a>, <a href="/search/nucl-ex?searchtype=author&query=Albicocco%2C+P">P. Albicocco</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+J">J. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/nucl-ex?searchtype=author&query=Alexander%2C+M">M. Alexander</a>, <a href="/search/nucl-ex?searchtype=author&query=Albero%2C+A+A">A. Alfonso Albero</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliouche%2C+Z">Z. Aliouche</a>, <a href="/search/nucl-ex?searchtype=author&query=Cartelle%2C+P+A">P. Alvarez Cartelle</a>, <a href="/search/nucl-ex?searchtype=author&query=Amalric%2C+R">R. Amalric</a>, <a href="/search/nucl-ex?searchtype=author&query=Amato%2C+S">S. Amato</a>, <a href="/search/nucl-ex?searchtype=author&query=Amey%2C+J+L">J. L. Amey</a>, <a href="/search/nucl-ex?searchtype=author&query=Amhis%2C+Y">Y. Amhis</a> , et al. (1080 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="2310.17326v1-abstract-short" style="display: inline;"> The production of $畏$ and $畏'$ mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of $5.02$ and $13~{\rm TeV}$, and proton-lead collisions are studied at a center-of-mass energy per nucleon of $8.16~{\rm TeV}$. The studies are performed in center-of-mass rapidity regions… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17326v1-abstract-full').style.display = 'inline'; document.getElementById('2310.17326v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.17326v1-abstract-full" style="display: none;"> The production of $畏$ and $畏'$ mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. Proton-proton collisions are studied at center-of-mass energies of $5.02$ and $13~{\rm TeV}$, and proton-lead collisions are studied at a center-of-mass energy per nucleon of $8.16~{\rm TeV}$. The studies are performed in center-of-mass rapidity regions $2.5<y_{\rm c.m.}<3.5$ (forward rapidity) and $-4.0<y_{\rm c.m.}<-3.0$ (backward rapidity) defined relative to the proton beam direction. The $畏$ and $畏'$ production cross sections are measured differentially as a function of transverse momentum for $1.5<p_{\rm T}<10~{\rm GeV}$ and $3<p_{\rm T}<10~{\rm GeV}$, respectively. The differential cross sections are used to calculate nuclear modification factors. The nuclear modification factors for $畏$ and $畏'$ mesons agree at both forward and backward rapidity, showing no significant evidence of mass dependence. The differential cross sections of $畏$ mesons are also used to calculate $畏/蟺^0$ cross section ratios, which show evidence of a deviation from the world average. These studies offer new constraints on mass-dependent nuclear effects in heavy-ion collisions, as well as $畏$ and $畏'$ meson fragmentation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.17326v1-abstract-full').style.display = 'none'; document.getElementById('2310.17326v1-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 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </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/p/LHCb-PAPER-2023-030.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-2023-030, CERN-EP-2023-228 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.07311">arXiv:2304.07311</a> <span> [<a href="https://arxiv.org/pdf/2304.07311">pdf</a>, <a href="https://arxiv.org/format/2304.07311">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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"> Commissioning of miniBELEN-10A, a moderated neutron counter with a flat efficiency for thick-target neutron yields measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mont-Geli%2C+N">N Mont-Geli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fraile%2C+L+M">L M Fraile</a>, <a href="/search/nucl-ex?searchtype=author&query=Vi%C3%B1als%2C+S">S Vi帽als</a>, <a href="/search/nucl-ex?searchtype=author&query=Perea%2C+A">A Perea</a>, <a href="/search/nucl-ex?searchtype=author&query=Pall%C3%A0s%2C+M">M Pall脿s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+G">G Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%A1cher%2C+E">E N谩cher</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J L Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Alonso-Sa%C3%B1udo%2C+O">O Alonso-Sa帽udo</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Benito%2C+J">J Benito</a>, <a href="/search/nucl-ex?searchtype=author&query=Borge%2C+M+J+G">M J G Borge</a>, <a href="/search/nucl-ex?searchtype=author&query=Briz%2C+J+A">J A Briz</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Blas%2C+A">A De Blas</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fern%C3%A1ndez%2C+B">B Fern谩ndez</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+R">R Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B3mez-Camacho%2C+J">J G贸mez-Camacho</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E+M">E M Gonz谩lez-Romero</a> , et al. (18 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="2304.07311v1-abstract-short" style="display: inline;"> miniBELEN-10A is a modular and transportable moderated neutron counter with a nearly flat detection efficiency up to 8 MeV. The detector was designed to carry out measurements of (alpha, n) reactions in the context of the Measurement of Alpha Neutron Yields (MANY) project. In this work we present the results of the commissioning of miniBELEN-10A using the relatively well-known thick-target neutron… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07311v1-abstract-full').style.display = 'inline'; document.getElementById('2304.07311v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.07311v1-abstract-full" style="display: none;"> miniBELEN-10A is a modular and transportable moderated neutron counter with a nearly flat detection efficiency up to 8 MeV. The detector was designed to carry out measurements of (alpha, n) reactions in the context of the Measurement of Alpha Neutron Yields (MANY) project. In this work we present the results of the commissioning of miniBELEN-10A using the relatively well-known thick-target neutron yields from 27Al(alpha, n)30P. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07311v1-abstract-full').style.display = 'none'; document.getElementById('2304.07311v1-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 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.07308">arXiv:2304.07308</a> <span> [<a href="https://arxiv.org/pdf/2304.07308">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.1051/epjconf/202328406004">10.1051/epjconf/202328406004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> miniBELEN: a modular neutron counter for (alpha,n) reactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mont-Geli%2C+N">N Mont-Geli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fraile%2C+L+M">L M Fraile</a>, <a href="/search/nucl-ex?searchtype=author&query=Vi%C3%B1als%2C+S">S Vi帽als</a>, <a href="/search/nucl-ex?searchtype=author&query=Perea%2C+A">A Perea</a>, <a href="/search/nucl-ex?searchtype=author&query=Pall%C3%A0s%2C+M">M Pall脿s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=N%C3%A1cher%2C+E">E N谩cher</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J L Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Alcayne%2C+V">V Alcayne</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea-Correa%2C+J">J Balibrea-Correa</a>, <a href="/search/nucl-ex?searchtype=author&query=Benito%2C+J">J Benito</a>, <a href="/search/nucl-ex?searchtype=author&query=Borge%2C+M+J+G">M J G Borge</a>, <a href="/search/nucl-ex?searchtype=author&query=Briz%2C+J+A">J A Briz</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Blas%2C+A">A De Blas</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fern%C3%A1ndez%2C+B">B Fern谩ndez</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+R">R Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+G">G Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B3mez-Camacho%2C+J">J G贸mez-Camacho</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-Romero%2C+E+M">E M Gonz谩lez-Romero</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C Guerrero</a> , et al. (16 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="2304.07308v1-abstract-short" style="display: inline;"> miniBELEN is a modular and transportable neutron moderated counter with a nearly flat neutron detection efficiency up to 10 MeV. Modularity implies that the moderator can be reassembled in different ways in order to obtain different types of response. The detector has been developed in the context of the Measurement of Alpha Neutron Yields (MANY) collaboration, which is a scientific effort aiming… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07308v1-abstract-full').style.display = 'inline'; document.getElementById('2304.07308v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.07308v1-abstract-full" style="display: none;"> miniBELEN is a modular and transportable neutron moderated counter with a nearly flat neutron detection efficiency up to 10 MeV. Modularity implies that the moderator can be reassembled in different ways in order to obtain different types of response. The detector has been developed in the context of the Measurement of Alpha Neutron Yields (MANY) collaboration, which is a scientific effort aiming to carry out measurements of (alpha,n) production yields, reaction cross-sections and neutron energy spectra. In this work we present and discuss several configurations of the miniBELEN detector. The experimental validation of the efficiency calculations using 252Cf sources and the measurement of the 27Al(alpha,n)30P reaction is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.07308v1-abstract-full').style.display = 'none'; document.getElementById('2304.07308v1-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 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </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">15th International Conference on Nuclear Data for Science and Technology (ND2022)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.04158">arXiv:2205.04158</a> <span> [<a href="https://arxiv.org/pdf/2205.04158">pdf</a>, <a href="https://arxiv.org/format/2205.04158">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 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/PhysRevC.106.024328">10.1103/PhysRevC.106.024328 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Double-Weak Decays of $^{124}$Xe and $^{136}$Xe in the XENON1T and XENONnT Experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Abe%2C+K">K. Abe</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+A">S. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfonsi%2C+M">M. Alfonsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieu%2C+B">B. Andrieu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Angevaare%2C+J+R">J. R. Angevaare</a>, <a href="/search/nucl-ex?searchtype=author&query=Antochi%2C+V+C">V. C. Antochi</a>, <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+D+A">D. Ant贸n Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Baxter%2C+A+L">A. L. Baxter</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellagamba%2C+L">L. Bellagamba</a>, <a href="/search/nucl-ex?searchtype=author&query=Biondi%2C+R">R. Biondi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bismark%2C+A">A. Bismark</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruenner%2C+S">S. Bruenner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/nucl-ex?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+C">C. Cai</a>, <a href="/search/nucl-ex?searchtype=author&query=Capelli%2C+C">C. Capelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Cichon%2C+D">D. Cichon</a> , et al. (135 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="2205.04158v3-abstract-short" style="display: inline;"> We present results on the search for double-electron capture ($2谓\text{ECEC}$) of $^{124}$Xe and neutrinoless double-$尾$ decay ($0谓尾尾$) of $^{136}$Xe in XENON1T. We consider captures from the K- up to the N-shell in the $2谓\text{ECEC}$ signal model and measure a total half-life of $T_{1/2}^{2谓\text{ECEC}}=(1.1\pm0.2_\text{stat}\pm0.1_\text{sys})\times 10^{22}\;\text{yr}$ with a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.04158v3-abstract-full').style.display = 'inline'; document.getElementById('2205.04158v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.04158v3-abstract-full" style="display: none;"> We present results on the search for double-electron capture ($2谓\text{ECEC}$) of $^{124}$Xe and neutrinoless double-$尾$ decay ($0谓尾尾$) of $^{136}$Xe in XENON1T. We consider captures from the K- up to the N-shell in the $2谓\text{ECEC}$ signal model and measure a total half-life of $T_{1/2}^{2谓\text{ECEC}}=(1.1\pm0.2_\text{stat}\pm0.1_\text{sys})\times 10^{22}\;\text{yr}$ with a $0.87\;\text{kg}\times\text{yr}$ isotope exposure. The statistical significance of the signal is $7.0\,蟽$. We use XENON1T data with $36.16\;\text{kg}\times\text{yr}$ of $^{136}$Xe exposure to search for $0谓尾尾$. We find no evidence of a signal and set a lower limit on the half-life of $T_{1/2}^{0谓尾尾} > 1.2 \times 10^{24}\;\text{yr}\; \text{at}\; 90\,\%\;\text{CL}$. This is the best result from a dark matter detector without an enriched target to date. We also report projections on the sensitivity of XENONnT to $0谓尾尾$. Assuming a $275\;\text{kg}\times\text{yr}$ $^{136}$Xe exposure, the expected sensitivity is $T_{1/2}^{0谓尾尾} > 2.1 \times 10^{25}\;\text{yr}\; \text{at}\; 90\,\%\;\text{CL}$, corresponding to an effective Majorana mass range of $\langle m_{尾尾} \rangle < (0.19 - 0.59)\;\text{eV/c}^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.04158v3-abstract-full').style.display = 'none'; document.getElementById('2205.04158v3-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 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </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">23 pages, 14 figures, 9 tables, version accepted for publication in Phys. Rev. C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 106, 024328 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2204.14263">arXiv:2204.14263</a> <span> [<a href="https://arxiv.org/pdf/2204.14263">pdf</a>, <a href="https://arxiv.org/format/2204.14263">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 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/s10052-022-10755-6">10.1140/epjc/s10052-022-10755-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Long-term evolution of the neutron rate at the Canfranc Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Orrigo%2C+S+E+A">S. E. A. Orrigo</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Mont-Geli%2C+N">N. Mont-Geli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fraile%2C+L+M">L. M. Fraile</a>, <a href="/search/nucl-ex?searchtype=author&query=Grieger%2C+M">M. Grieger</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Blas%2C+A">A. De Blas</a>, <a href="/search/nucl-ex?searchtype=author&query=Dillmann%2C+I">I. Dillmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bugar%C3%ADn%2C+A+D">A. Dom铆nguez Bugar铆n</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+R">R. Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Nacher%2C+E">E. Nacher</a>, <a href="/search/nucl-ex?searchtype=author&query=Tolosa-Delgado%2C+A">A. Tolosa-Delgado</a> </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="2204.14263v2-abstract-short" style="display: inline;"> We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.14263v2-abstract-full').style.display = 'inline'; document.getElementById('2204.14263v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2204.14263v2-abstract-full" style="display: none;"> We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-term measurement of the neutron rate with sensitivity over a wide range of neutron energies (from thermal up to 0.1 GeV and beyond) performed in any underground laboratory so far. Data on the environmental variables inside the experimental hall (radon concentration, air temperature, air pressure and humidity) were also acquired during all the measurement campaign. We have investigated for the first time the evolution of the neutron rate for different energies of the neutrons and its correlation with the ambient variables. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.14263v2-abstract-full').style.display = 'none'; document.getElementById('2204.14263v2-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> 29 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2022. </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, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 82, 814 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.02309">arXiv:2203.02309</a> <span> [<a href="https://arxiv.org/pdf/2203.02309">pdf</a>, <a href="https://arxiv.org/format/2203.02309">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey 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 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/10.1088/1361-6471/ac841a">10.1088/1361-6471/ac841a <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Abe%2C+K">K. Abe</a>, <a href="/search/nucl-ex?searchtype=author&query=Aerne%2C+V">V. Aerne</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+A">S. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Akerib%2C+D+S">D. S. Akerib</a>, <a href="/search/nucl-ex?searchtype=author&query=Akimov%2C+D+Y">D. Yu. Akimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Akshat%2C+J">J. Akshat</a>, <a href="/search/nucl-ex?searchtype=author&query=Musalhi%2C+A+K+A">A. K. Al Musalhi</a>, <a href="/search/nucl-ex?searchtype=author&query=Alder%2C+F">F. Alder</a>, <a href="/search/nucl-ex?searchtype=author&query=Alsum%2C+S+K">S. K. Alsum</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amarasinghe%2C+C+S">C. S. Amarasinghe</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaro%2C+F+D">F. D. Amaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Ames%2C+A">A. Ames</a>, <a href="/search/nucl-ex?searchtype=author&query=Anderson%2C+T+J">T. J. Anderson</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrieu%2C+B">B. Andrieu</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelides%2C+N">N. Angelides</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Angevaare%2C+J">J. Angevaare</a>, <a href="/search/nucl-ex?searchtype=author&query=Antochi%2C+V+C">V. C. Antochi</a>, <a href="/search/nucl-ex?searchtype=author&query=Martin%2C+D+A">D. Ant贸n Martin</a>, <a href="/search/nucl-ex?searchtype=author&query=Antunovic%2C+B">B. Antunovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a> , et al. (572 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="2203.02309v1-abstract-short" style="display: inline;"> The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neut… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.02309v1-abstract-full').style.display = 'inline'; document.getElementById('2203.02309v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.02309v1-abstract-full" style="display: none;"> The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical sources. A next-generation xenon-based detector will therefore be a true multi-purpose observatory to significantly advance particle physics, nuclear physics, astrophysics, solar physics, and cosmology. This review article presents the science cases for such a detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.02309v1-abstract-full').style.display = 'none'; document.getElementById('2203.02309v1-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </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">77 pages, 40 figures, 1262 references</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> INT-PUB-22-003 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Phys. G: Nucl. Part. Phys. 50 (2023) 013001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05603">arXiv:2202.05603</a> <span> [<a href="https://arxiv.org/pdf/2202.05603">pdf</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> </div> </div> <p class="title is-5 mathjax"> High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) in the thermal to 10 keV energy range </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=collaboration%2C+n">n_TOF collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardella%2C+R">R. Cardella</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a> , et al. (98 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="2202.05603v1-abstract-short" style="display: inline;"> The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between thermal and 10 keV neutron energy… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05603v1-abstract-full').style.display = 'inline'; document.getElementById('2202.05603v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.05603v1-abstract-full" style="display: none;"> The 235U(n,f) cross section was measured in a wide energy range (25 meV - 170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,alpha) standard reactions, with high resolution and accuracy, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. In this paper we report on the results in the region between thermal and 10 keV neutron energy. A resonance analysis has been performed up to 200 eV, with the code SAMMY. The resulting fission kernels are compared with the ones extracted on the basis of the resonance parameters of the most recent major evaluated data libraries. A comparison of the n_TOF data with the evaluated cross sections is also performed from thermal to 10 keV neutron energy for the energy-averaged cross section in energy groups of suitably chosen width. A good agreement is found in average between the new results and the latest evaluated data files ENDF-B/VIII and JEFF-3.3, as well as with respect to the IAEA reference files. However, some discrepancies are still present in some specific energy regions. The new dataset here presented, characterized by unprecedented resolution and accuracy, can help improving the evaluations in the Resolved Resonance Region and up to 10 keV, and reduce the uncertainties that affect this region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05603v1-abstract-full').style.display = 'none'; document.getElementById('2202.05603v1-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 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.12616">arXiv:2111.12616</a> <span> [<a href="https://arxiv.org/pdf/2111.12616">pdf</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> </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/10.1088/1742-6596/2156/1/012223">10.1088/1742-6596/2156/1/012223 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First results from the HENSA/ANAIS collaboration at the Canfranc Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mont-Geli%2C+N">N Mont-Geli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Orrigo%2C+S+E+A">S E A Orrigo</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J L Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Grieger%2C+M">M Grieger</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Amar%C3%A9%2C+J">J Amar茅</a>, <a href="/search/nucl-ex?searchtype=author&query=Bemmerer%2C+D">D Bemmerer</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Coarasa%2C+I">I Coarasa</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Blas%2C+A">A De Blas</a>, <a href="/search/nucl-ex?searchtype=author&query=Dillmann%2C+I">I Dillmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Fraile%2C+L+M">L M Fraile</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+E">E Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+R">R Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez%2C+M">M Mart铆nez</a>, <a href="/search/nucl-ex?searchtype=author&query=Nacher%2C+E">E Nacher</a>, <a href="/search/nucl-ex?searchtype=author&query=Ortigoza%2C+Y">Y Ortigoza</a>, <a href="/search/nucl-ex?searchtype=author&query=Ortiz%2C+A">A Ortiz</a>, <a href="/search/nucl-ex?searchtype=author&query=Pall%C3%A0s%2C+M">M Pall脿s</a>, <a href="/search/nucl-ex?searchtype=author&query=Puimed%C3%B3n%2C+J">J Puimed贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Salinas%2C+A">A Salinas</a> , et al. (2 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="2111.12616v2-abstract-short" style="display: inline;"> The HENSA/ANAIS collaboration aims for the precise determination of the neutron flux that could affect ANAIS-112, an experiment looking for the dark matter annual modulation using NaI(Tl) scintillators. In this work, the first measurements of the neutron flux and Monte Carlo simulations of the neutron spectrum are reported. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.12616v2-abstract-full" style="display: none;"> The HENSA/ANAIS collaboration aims for the precise determination of the neutron flux that could affect ANAIS-112, an experiment looking for the dark matter annual modulation using NaI(Tl) scintillators. In this work, the first measurements of the neutron flux and Monte Carlo simulations of the neutron spectrum are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.12616v2-abstract-full').style.display = 'none'; document.getElementById('2111.12616v2-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> 3 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.11091">arXiv:2111.11091</a> <span> [<a href="https://arxiv.org/pdf/2111.11091">pdf</a>, <a href="https://arxiv.org/format/2111.11091">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/PhysRevC.105.055501">10.1103/PhysRevC.105.055501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the ${}^{136}$Xe two-neutrino double beta decay half-life via direct background subtraction in NEXT </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=NEXT+Collaboration"> NEXT Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Novella%2C+P">P. Novella</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorel%2C+M">M. Sorel</a>, <a href="/search/nucl-ex?searchtype=author&query=Us%C3%B3n%2C+A">A. Us贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Almaz%C3%A1n%2C+H">H. Almaz谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparicio%2C+B">B. Aparicio</a>, <a href="/search/nucl-ex?searchtype=author&query=Aranburu%2C+A+I">A. I. Aranburu</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayet%2C+S">S. Ayet</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=Bounasser%2C+S">S. Bounasser</a>, <a href="/search/nucl-ex?searchtype=author&query=Byrnes%2C+N">N. Byrnes</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a>, <a href="/search/nucl-ex?searchtype=author&query=Carri%C3%B3n%2C+J+V">J. V. Carri贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/nucl-ex?searchtype=author&query=Conde%2C+C+A+N">C. A. N. Conde</a>, <a href="/search/nucl-ex?searchtype=author&query=Contreras%2C+T">T. Contreras</a> , et al. (85 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="2111.11091v3-abstract-short" style="display: inline;"> We report a measurement of the half-life of the ${}^{136}$Xe two-neutrino double beta decay performed with a novel direct background subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with ${}^{136}$Xe-enriched and ${}^{136}$Xe-depleted xenon, as well as on the topology of double-electron tracks. With a fiducial mass of only 3.5 kg of Xe, a half-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11091v3-abstract-full').style.display = 'inline'; document.getElementById('2111.11091v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.11091v3-abstract-full" style="display: none;"> We report a measurement of the half-life of the ${}^{136}$Xe two-neutrino double beta decay performed with a novel direct background subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with ${}^{136}$Xe-enriched and ${}^{136}$Xe-depleted xenon, as well as on the topology of double-electron tracks. With a fiducial mass of only 3.5 kg of Xe, a half-life of $2.34^{+0.80}_{-0.46}\textrm{(stat)}^{+0.30}_{-0.17}\textrm{(sys)}\times10^{21}~\textrm{yr}$ is derived from the background-subtracted energy spectrum. The presented technique demonstrates the feasibility of unique background-model-independent neutrinoless double beta decay searches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.11091v3-abstract-full').style.display = 'none'; document.getElementById('2111.11091v3-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 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </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">9 pages, 7 figures, and 1 appendix</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 105, 055501 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.09202">arXiv:2111.09202</a> <span> [<a href="https://arxiv.org/pdf/2111.09202">pdf</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 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/10.1088/1742-6596/2156/1/012169">10.1088/1742-6596/2156/1/012169 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the neutron flux at the Canfranc Underground Laboratory with HENSA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Orrigo%2C+S+E+A">S. E. A. Orrigo</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Mont-Geli%2C+N">N. Mont-Geli</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarife%C3%B1o-Saldivia%2C+A">A. Tarife帽o-Saldivia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fraile%2C+L+M">L. M. Fraile</a>, <a href="/search/nucl-ex?searchtype=author&query=Grieger%2C+M">M. Grieger</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Bemmerer%2C+D">D. Bemmerer</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Blas%2C+A">A. De Blas</a>, <a href="/search/nucl-ex?searchtype=author&query=Dillmann%2C+I">I. Dillmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Bugar%C3%ADn%2C+A+D">A. Dom铆nguez Bugar铆n</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+R">R. Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Nacher%2C+E">E. Nacher</a>, <a href="/search/nucl-ex?searchtype=author&query=Tolosa%2C+A">A. Tolosa</a> </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="2111.09202v1-abstract-short" style="display: inline;"> We have performed a long-term measurement of the neutron flux with the High Efficiency Neutron Spectrometry Array HENSA in the Hall A of the Canfranc Underground Laboratory. The Hall A measurement campaign lasted from October 2019 to March 2021, demonstrating an excellent stability of the HENSA setup. Preliminary results on the neutron flux from this campaign are presented for the first time. In P… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.09202v1-abstract-full').style.display = 'inline'; document.getElementById('2111.09202v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.09202v1-abstract-full" style="display: none;"> We have performed a long-term measurement of the neutron flux with the High Efficiency Neutron Spectrometry Array HENSA in the Hall A of the Canfranc Underground Laboratory. The Hall A measurement campaign lasted from October 2019 to March 2021, demonstrating an excellent stability of the HENSA setup. Preliminary results on the neutron flux from this campaign are presented for the first time. In Phase 1 (113 live days) a total neutron flux of 1.66(2) $\times$10$^{-5}$ cm$^{-2}$ s$^{-1}$ is obtained. Our results are in good agreement with those from our previous shorter measurement where a reduced experimental setup was employed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.09202v1-abstract-full').style.display = 'none'; document.getElementById('2111.09202v1-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 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </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">Proceedings of the 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.05902">arXiv:2109.05902</a> <span> [<a href="https://arxiv.org/pdf/2109.05902">pdf</a>, <a href="https://arxiv.org/format/2109.05902">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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"> The Dynamics of Ions on Phased Radio-frequency Carpets in High Pressure Gases and Application for Barium Tagging in Xenon Gas Time Projection Chambers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=NEXT+Collaboration"> NEXT Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Raymond%2C+A">A. Raymond</a>, <a href="/search/nucl-ex?searchtype=author&query=Woodruff%2C+K">K. Woodruff</a>, <a href="/search/nucl-ex?searchtype=author&query=Byrnes%2C+N">N. Byrnes</a>, <a href="/search/nucl-ex?searchtype=author&query=Denisenko%2C+A+A">A. A. Denisenko</a>, <a href="/search/nucl-ex?searchtype=author&query=Foss%2C+F+W">F. W. Foss</a>, <a href="/search/nucl-ex?searchtype=author&query=Navarro%2C+K">K. Navarro</a>, <a href="/search/nucl-ex?searchtype=author&query=Nygren%2C+D+R">D. R. Nygren</a>, <a href="/search/nucl-ex?searchtype=author&query=Vuong%2C+T+T">T. T. Vuong</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Almaz%C3%A1n%2C+H">H. Almaz谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Aparicio%2C+B">B. Aparicio</a>, <a href="/search/nucl-ex?searchtype=author&query=Aranburu%2C+A+I">A. I. Aranburu</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayet%2C+S">S. Ayet</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R. Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=Bounasser%2C+S">S. Bounasser</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a> , et al. (85 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="2109.05902v2-abstract-short" style="display: inline;"> Radio-frequency (RF) carpets with ultra-fine pitches are examined for ion transport in gases at atmospheric pressures and above. We develop new analytic and computational methods for modeling RF ion transport at densities where dynamics are strongly influenced by buffer gas collisions. An analytic description of levitating and sweeping forces from phased arrays is obtained, then thermodynamic and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.05902v2-abstract-full').style.display = 'inline'; document.getElementById('2109.05902v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.05902v2-abstract-full" style="display: none;"> Radio-frequency (RF) carpets with ultra-fine pitches are examined for ion transport in gases at atmospheric pressures and above. We develop new analytic and computational methods for modeling RF ion transport at densities where dynamics are strongly influenced by buffer gas collisions. An analytic description of levitating and sweeping forces from phased arrays is obtained, then thermodynamic and kinetic principles are used to calculate ion loss rates in the presence of collisions. This methodology is validated against detailed microscopic SIMION simulations. We then explore a parameter space of special interest for neutrinoless double beta decay experiments: transport of barium ions in xenon at pressures from 1 to 10 bar. Our computations account for molecular ion formation and pressure dependent mobility as well as finite temperature effects. We discuss the challenges associated with achieving suitable operating conditions, which lie beyond the capabilities of existing devices, using presently available or near-future manufacturing techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.05902v2-abstract-full').style.display = 'none'; document.getElementById('2109.05902v2-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> 29 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </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">26 pages, 16 figures v2: author list update and pre-journal submission adjustments</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.07320">arXiv:2006.07320</a> <span> [<a href="https://arxiv.org/pdf/2006.07320">pdf</a>, <a href="https://arxiv.org/format/2006.07320">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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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/JHEP02(2021)203">10.1007/JHEP02(2021)203 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Sensitivity of the NEXT experiment to Xe-124 double electron capture </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez-Lema%2C+G">G. Mart铆nez-Lema</a>, <a href="/search/nucl-ex?searchtype=author&query=Mart%C3%ADnez-Vara%2C+M">M. Mart铆nez-Vara</a>, <a href="/search/nucl-ex?searchtype=author&query=Sorel%2C+M">M. Sorel</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=Alvarez%2C+V">V. Alvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=Byrnes%2C+N">N. Byrnes</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a>, <a href="/search/nucl-ex?searchtype=author&query=Carri%C3%B3n%2C+J+V">J. V. Carri贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/nucl-ex?searchtype=author&query=Conde%2C+C+A+N">C. A. N. Conde</a>, <a href="/search/nucl-ex?searchtype=author&query=Contreras%2C+T">T. Contreras</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+G">G. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+J">J. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Diesburg%2C+M">M. Diesburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Escada%2C+J">J. Escada</a>, <a href="/search/nucl-ex?searchtype=author&query=Esteve%2C+R">R. Esteve</a>, <a href="/search/nucl-ex?searchtype=author&query=Felkai%2C+R">R. Felkai</a> , et al. (66 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="2006.07320v3-abstract-short" style="display: inline;"> Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized neutrinoless mode of these decays. The Standard-Model-allowed two-neutrino double electron capture ($2谓ECEC$) has been predicted for a number of isotopes, b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07320v3-abstract-full').style.display = 'inline'; document.getElementById('2006.07320v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.07320v3-abstract-full" style="display: none;"> Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized neutrinoless mode of these decays. The Standard-Model-allowed two-neutrino double electron capture ($2谓ECEC$) has been predicted for a number of isotopes, but only observed in $^{78}$Kr, $^{130}$Ba and, recently, $^{124}$Xe. The sensitivity to this decay establishes a benchmark for the ultimate experimental goal, namely the potential to discover also the lepton-number-violating neutrinoless version of this process, $0谓ECEC$. Here we report on the current sensitivity of the NEXT-White detector to $^{124}$Xe $2谓ECEC$ and on the extrapolation to NEXT-100. Using simulated data for the $2谓ECEC$ signal and real data from NEXT-White operated with $^{124}$Xe-depleted gas as background, we define an optimal event selection that maximizes the NEXT-White sensitivity. We estimate that, for NEXT-100 operated with xenon gas isotopically enriched with 1 kg of $^{124}$Xe and for a 5-year run, a sensitivity to the $2谓ECEC$ half-life of $6 \times 10^{22}$ y (at 90% confidence level) or better can be reached. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.07320v3-abstract-full').style.display = 'none'; document.getElementById('2006.07320v3-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 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </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">23 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. 2021, 203 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.06467">arXiv:2005.06467</a> <span> [<a href="https://arxiv.org/pdf/2005.06467">pdf</a>, <a href="https://arxiv.org/format/2005.06467">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</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"> Sensitivity of a tonne-scale NEXT detector for neutrinoless double beta decay searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=NEXT+Collaboration"> NEXT Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=Byrnes%2C+N">N. Byrnes</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a>, <a href="/search/nucl-ex?searchtype=author&query=Carri%C3%B3n%2C+J+V">J. V. Carri贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/nucl-ex?searchtype=author&query=Conde%2C+C+A+N">C. A. N. Conde</a>, <a href="/search/nucl-ex?searchtype=author&query=Contreras%2C+T">T. Contreras</a>, <a href="/search/nucl-ex?searchtype=author&query=Denisenko%2C+A+A">A. A. Denisenko</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+G">G. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+J">J. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Escada%2C+J">J. Escada</a>, <a href="/search/nucl-ex?searchtype=author&query=Esteve%2C+R">R. Esteve</a>, <a href="/search/nucl-ex?searchtype=author&query=Felkai%2C+R">R. Felkai</a>, <a href="/search/nucl-ex?searchtype=author&query=Fernandes%2C+L+M+P">L. M. P. Fernandes</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferrario%2C+P">P. Ferrario</a> , et al. (74 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="2005.06467v2-abstract-short" style="display: inline;"> The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs with electroluminescent amplification. A scaled-up version of this technology with about 1 tonne of enriched xenon could reach in less than 5 years of operation a sensitivity to the half-life of neutrinoless double-beta decay decay better than 1E27 years, imp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.06467v2-abstract-full').style.display = 'inline'; document.getElementById('2005.06467v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.06467v2-abstract-full" style="display: none;"> The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs with electroluminescent amplification. A scaled-up version of this technology with about 1 tonne of enriched xenon could reach in less than 5 years of operation a sensitivity to the half-life of neutrinoless double-beta decay decay better than 1E27 years, improving the current limits by at least one order of magnitude. This prediction is based on a well-understood background model dominated by radiogenic sources. The detector concept presented here represents a first step on a compelling path towards sensitivity to the parameter space defined by the inverted ordering of neutrino masses, and beyond. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.06467v2-abstract-full').style.display = 'none'; document.getElementById('2005.06467v2-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 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </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">22 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.13407">arXiv:2003.13407</a> <span> [<a href="https://arxiv.org/pdf/2003.13407">pdf</a>, <a href="https://arxiv.org/format/2003.13407">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey 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"> Sensitivity of the DARWIN observatory to the neutrinoless double beta decay of $^{136}$Xe </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Maouloud%2C+S+E+M+A">S. E. M. Ahmed Maouloud</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaro%2C+F">F. Amaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Antunovic%2C+B">B. Antunovic</a>, <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Baur%2C+D">D. Baur</a>, <a href="/search/nucl-ex?searchtype=author&query=Biondi%2C+Y">Y. Biondi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bismark%2C+A">A. Bismark</a>, <a href="/search/nucl-ex?searchtype=author&query=Breur%2C+P+A">P. A. Breur</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/nucl-ex?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/nucl-ex?searchtype=author&query=Capelli%2C+C">C. Capelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardoso%2C+J">J. Cardoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Cichon%2C+D">D. Cichon</a>, <a href="/search/nucl-ex?searchtype=author&query=Clark%2C+M">M. Clark</a>, <a href="/search/nucl-ex?searchtype=author&query=Colijn%2C+A+P">A. P. Colijn</a>, <a href="/search/nucl-ex?searchtype=author&query=Cuenca-Garc%C3%ADa%2C+J+J">J. J. Cuenca-Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Cussonneau%2C+J+P">J. P. Cussonneau</a>, <a href="/search/nucl-ex?searchtype=author&query=Decowski%2C+M+P">M. P. Decowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Depoian%2C+A">A. Depoian</a>, <a href="/search/nucl-ex?searchtype=author&query=Dierle%2C+J">J. Dierle</a>, <a href="/search/nucl-ex?searchtype=author&query=Di+Gangi%2C+P">P. Di Gangi</a> , et al. (70 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="2003.13407v2-abstract-short" style="display: inline;"> The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of $^{136}$Xe. Out of its 50$\,$t total natural xenon inventory, 40$\,$t will be the active target of a time projection chamber which thus contains about 3.6 t of $^{136}$Xe. Here, we show that its projected half-life sensitivity is $2.4\times10^{27}\,$yr, u… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.13407v2-abstract-full').style.display = 'inline'; document.getElementById('2003.13407v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.13407v2-abstract-full" style="display: none;"> The DARWIN observatory is a proposed next-generation experiment to search for particle dark matter and for the neutrinoless double beta decay of $^{136}$Xe. Out of its 50$\,$t total natural xenon inventory, 40$\,$t will be the active target of a time projection chamber which thus contains about 3.6 t of $^{136}$Xe. Here, we show that its projected half-life sensitivity is $2.4\times10^{27}\,$yr, using a fiducial volume of 5t of natural xenon and 10$\,$yr of operation with a background rate of less than 0.2$~$events/(t$\cdot$yr) in the energy region of interest. This sensitivity is based on a detailed Monte Carlo simulation study of the background and event topologies in the large, homogeneous target. DARWIN will be comparable in its science reach to dedicated double beta decay experiments using xenon enriched in $^{136}$Xe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.13407v2-abstract-full').style.display = 'none'; document.getElementById('2003.13407v2-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </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, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 80, 808 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.03825">arXiv:2003.03825</a> <span> [<a href="https://arxiv.org/pdf/2003.03825">pdf</a>, <a href="https://arxiv.org/format/2003.03825">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey 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 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/s10052-020-8284-0">10.1140/epjc/s10052-020-8284-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Energy resolution and linearity of XENON1T in the MeV energy range </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfonsi%2C+M">M. Alfonsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaro%2C+F+D">F. D. Amaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Antochi%2C+V+C">V. C. Antochi</a>, <a href="/search/nucl-ex?searchtype=author&query=Angelino%2C+E">E. Angelino</a>, <a href="/search/nucl-ex?searchtype=author&query=Angevaare%2C+J">J. Angevaare</a>, <a href="/search/nucl-ex?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/nucl-ex?searchtype=author&query=Barge%2C+D">D. Barge</a>, <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bauermeister%2C+B">B. Bauermeister</a>, <a href="/search/nucl-ex?searchtype=author&query=Bellagamba%2C+L">L. Bellagamba</a>, <a href="/search/nucl-ex?searchtype=author&query=Benabderrahmane%2C+M+L">M. L. Benabderrahmane</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+T">T. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Breur%2C+P+A">P. A. Breur</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+E">E. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruenner%2C+S">S. Bruenner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/nucl-ex?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/nucl-ex?searchtype=author&query=Capelli%2C+C">C. Capelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Cichon%2C+D">D. Cichon</a> , et al. (113 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="2003.03825v2-abstract-short" style="display: inline;"> Xenon dual-phase time projection chambers designed to search for Weakly Interacting Massive Particles have so far shown a relative energy resolution which degrades with energy above $\sim$200 keV due to the saturation effects. This has limited their sensitivity in the search for rare events like the neutrinoless double-beta decay of $^{136}$Xe at its $Q$-value, $Q_{尾尾}\simeq$ 2.46 MeV. For the XEN… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.03825v2-abstract-full').style.display = 'inline'; document.getElementById('2003.03825v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.03825v2-abstract-full" style="display: none;"> Xenon dual-phase time projection chambers designed to search for Weakly Interacting Massive Particles have so far shown a relative energy resolution which degrades with energy above $\sim$200 keV due to the saturation effects. This has limited their sensitivity in the search for rare events like the neutrinoless double-beta decay of $^{136}$Xe at its $Q$-value, $Q_{尾尾}\simeq$ 2.46 MeV. For the XENON1T dual-phase time projection chamber, we demonstrate that the relative energy resolution at 1 $蟽/渭$ is as low as (0.80$\pm$0.02) % in its one-ton fiducial mass, and for single-site interactions at $Q_{尾尾}$. We also present a new signal correction method to rectify the saturation effects of the signal readout system, resulting in more accurate position reconstruction and indirectly improving the energy resolution. The very good result achieved in XENON1T opens up new windows for the xenon dual-phase dark matter detectors to simultaneously search for other rare events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.03825v2-abstract-full').style.display = 'none'; document.getElementById('2003.03825v2-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </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">9 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 80, 785 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.05860">arXiv:1909.05860</a> <span> [<a href="https://arxiv.org/pdf/1909.05860">pdf</a>, <a href="https://arxiv.org/format/1909.05860">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.1088/1748-0221/15/04/P04022">10.1088/1748-0221/15/04/P04022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Woodruff%2C+K">K. Woodruff</a>, <a href="/search/nucl-ex?searchtype=author&query=Baeza-Rubio%2C+J">J. Baeza-Rubio</a>, <a href="/search/nucl-ex?searchtype=author&query=Huerta%2C+D">D. Huerta</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=McDonald%2C+A+D">A. D. McDonald</a>, <a href="/search/nucl-ex?searchtype=author&query=Norman%2C+L">L. Norman</a>, <a href="/search/nucl-ex?searchtype=author&query=Nygren%2C+D+R">D. R. Nygren</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=Byrnes%2C+N+K">N. K. Byrnes</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a>, <a href="/search/nucl-ex?searchtype=author&query=Carri%C3%B3n%2C+J+V">J. V. Carri贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/nucl-ex?searchtype=author&query=Conde%2C+C+A+N">C. A. N. Conde</a>, <a href="/search/nucl-ex?searchtype=author&query=Contreras%2C+T">T. Contreras</a>, <a href="/search/nucl-ex?searchtype=author&query=Denisenko%2C+A+A">A. A. Denisenko</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+G">G. D铆az</a> , et al. (69 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="1909.05860v3-abstract-short" style="display: inline;"> Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets for ion transport in high pressure xenon gas. This would require carpet functionality in regimes at higher pressures than have been previously reported, implying correspondingly large… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.05860v3-abstract-full').style.display = 'inline'; document.getElementById('1909.05860v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.05860v3-abstract-full" style="display: none;"> Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets for ion transport in high pressure xenon gas. This would require carpet functionality in regimes at higher pressures than have been previously reported, implying correspondingly larger electrode voltages than in existing systems. This mode of operation appears plausible for contemporary RF-carpet geometries due to the higher predicted breakdown strength of high pressure xenon relative to low pressure helium, the working medium in most existing RF carpet devices. In this paper we present the first measurements of the high voltage dielectric strength of xenon gas at high pressure and at the relevant RF frequencies for ion transport (in the 10 MHz range), as well as new DC and RF measurements of the dielectric strengths of high pressure argon and helium gases at small gap sizes. We find breakdown voltages that are compatible with stable RF carpet operation given the gas, pressure, voltage, materials and geometry of interest. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.05860v3-abstract-full').style.display = 'none'; document.getElementById('1909.05860v3-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 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1904.11002">arXiv:1904.11002</a> <span> [<a href="https://arxiv.org/pdf/1904.11002">pdf</a>, <a href="https://arxiv.org/format/1904.11002">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> </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/10.1038/s41586-019-1124-4">10.1038/s41586-019-1124-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First observation of two-neutrino double electron capture in $^{124}$Xe with XENON1T </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Aprile%2C+E">E. Aprile</a>, <a href="/search/nucl-ex?searchtype=author&query=Aalbers%2C+J">J. Aalbers</a>, <a href="/search/nucl-ex?searchtype=author&query=Agostini%2C+F">F. Agostini</a>, <a href="/search/nucl-ex?searchtype=author&query=Alfonsi%2C+M">M. Alfonsi</a>, <a href="/search/nucl-ex?searchtype=author&query=Althueser%2C+L">L. Althueser</a>, <a href="/search/nucl-ex?searchtype=author&query=Amaro%2C+F+D">F. D. Amaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Anthony%2C+M">M. Anthony</a>, <a href="/search/nucl-ex?searchtype=author&query=Antochi%2C+V+C">V. C. Antochi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arneodo%2C+F">F. Arneodo</a>, <a href="/search/nucl-ex?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/nucl-ex?searchtype=author&query=Bauermeister%2C+B">B. Bauermeister</a>, <a href="/search/nucl-ex?searchtype=author&query=Benabderrahmane%2C+M+L">M. L. Benabderrahmane</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+T">T. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Breur%2C+P+A">P. A. Breur</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+E">E. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruenner%2C+S">S. Bruenner</a>, <a href="/search/nucl-ex?searchtype=author&query=Bruno%2C+G">G. Bruno</a>, <a href="/search/nucl-ex?searchtype=author&query=Budnik%2C+R">R. Budnik</a>, <a href="/search/nucl-ex?searchtype=author&query=Capelli%2C+C">C. Capelli</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardoso%2C+J+M+R">J. M. R. Cardoso</a>, <a href="/search/nucl-ex?searchtype=author&query=Cichon%2C+D">D. Cichon</a>, <a href="/search/nucl-ex?searchtype=author&query=Coderre%2C+D">D. Coderre</a>, <a href="/search/nucl-ex?searchtype=author&query=Colijn%2C+A+P">A. P. Colijn</a> , et al. (106 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="1904.11002v1-abstract-short" style="display: inline;"> Two-neutrino double electron capture ($2谓$ECEC) is a second-order Weak process with predicted half-lives that surpass the age of the Universe by many orders of magnitude. Until now, indications for $2谓$ECEC decays have only been seen for two isotopes, $^{78}$Kr and $^{130}$Ba, and instruments with very low background levels are needed to detect them directly with high statistical significance. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.11002v1-abstract-full').style.display = 'inline'; document.getElementById('1904.11002v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1904.11002v1-abstract-full" style="display: none;"> Two-neutrino double electron capture ($2谓$ECEC) is a second-order Weak process with predicted half-lives that surpass the age of the Universe by many orders of magnitude. Until now, indications for $2谓$ECEC decays have only been seen for two isotopes, $^{78}$Kr and $^{130}$Ba, and instruments with very low background levels are needed to detect them directly with high statistical significance. The $2谓$ECEC half-life provides an important input for nuclear structure models and its measurement represents a first step in the search for the neutrinoless double electron capture processes ($0谓$ECEC). A detection of the latter would have implications for the nature of the neutrino and give access to the absolute neutrino mass. Here we report on the first direct observation of $2谓$ECEC in $^{124}$Xe with the XENON1T Dark Matter detector. The significance of the signal is $4.4蟽$ and the corresponding half-life $T_{1/2}^{2谓\text{ECEC}} = (1.8\pm 0.5_\text{stat}\pm 0.1_\text{sys})\times 10^{22}\;\text{y}$ is the longest ever measured directly. This study demonstrates that the low background and large target mass of xenon-based Dark Matter detectors make them well suited to measuring other rare processes as well, and it highlights the broad physics reach for even larger next-generation experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.11002v1-abstract-full').style.display = 'none'; document.getElementById('1904.11002v1-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 April, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature 568, p.532-535, 2019 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.10631">arXiv:1902.10631</a> <span> [<a href="https://arxiv.org/pdf/1902.10631">pdf</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 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/epja/i2019-12802-7">10.1140/epja/i2019-12802-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,alpha) standards from thermal to 170 keV neutron energy range at n_TOF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Amaducci%2C+S">S. Amaducci</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Meo%2C+S+L">S. Lo Meo</a>, <a href="/search/nucl-ex?searchtype=author&query=Finocchiaro%2C+P">P. Finocchiaro</a>, <a href="/search/nucl-ex?searchtype=author&query=Aberle%2C+O">O. Aberle</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Bacak%2C+M">M. Bacak</a>, <a href="/search/nucl-ex?searchtype=author&query=Balibrea%2C+J">J. Balibrea</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/nucl-ex?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cardella%2C+R">R. Cardella</a>, <a href="/search/nucl-ex?searchtype=author&query=Casanovas%2C+A">A. Casanovas</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a> , et al. (96 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="1902.10631v2-abstract-short" style="display: inline;"> The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the reaction yields under the same experimental conditions, and taking into account the forwa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.10631v2-abstract-full').style.display = 'inline'; document.getElementById('1902.10631v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.10631v2-abstract-full" style="display: none;"> The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the reaction yields under the same experimental conditions, and taking into account the forward/backward emission asymmetry. A hint of an anomaly in the 10梅30 keV neutron energy range had been previously observed in other experiments, indicating a cross section systematically lower by several percent relative to major evaluations. The present results indicate that the evaluated cross section in the 9梅18 keV neutron energy range is indeed overestimated, both in the recent updates of ENDF/B-VIII.0 and of the IAEA reference data. Furthermore, these new high-resolution data confirm the existence of resonance-like structures in the keV neutron energy region. The new, high accuracy results here reported may lead to a reduction of the uncertainty in the 1梅100 keV neutron energy region. Finally, the present data provide additional confidence on the recently re-evaluated cross section integral between 7.8 and 11 eV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.10631v2-abstract-full').style.display = 'none'; document.getElementById('1902.10631v2-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 March, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </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">22 pages, 20 figures, submitted to PRC</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.05544">arXiv:1902.05544</a> <span> [<a href="https://arxiv.org/pdf/1902.05544">pdf</a>, <a href="https://arxiv.org/format/1902.05544">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.1088/1748-0221/14/08/P08009">10.1088/1748-0221/14/08/P08009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Electron Drift and Longitudinal Diffusion in High Pressure Xenon-Helium Gas Mixtures </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=McDonald%2C+A+D">A. D. McDonald</a>, <a href="/search/nucl-ex?searchtype=author&query=Woodruff%2C+K">K. Woodruff</a>, <a href="/search/nucl-ex?searchtype=author&query=Atoum%2C+B+A">B. Al Atoum</a>, <a href="/search/nucl-ex?searchtype=author&query=Gonz%C3%A1lez-D%C3%ADaz%2C+D">D. Gonz谩lez-D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Jones%2C+B+J+P">B. J. P. Jones</a>, <a href="/search/nucl-ex?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%81lvarez%2C+V">V. 脕lvarez</a>, <a href="/search/nucl-ex?searchtype=author&query=Arazi%2C+L">L. Arazi</a>, <a href="/search/nucl-ex?searchtype=author&query=Arnquist%2C+I+J">I. J. Arnquist</a>, <a href="/search/nucl-ex?searchtype=author&query=Azevedo%2C+C+D+R">C. D. R Azevedo</a>, <a href="/search/nucl-ex?searchtype=author&query=Bailey%2C+K">K. Bailey</a>, <a href="/search/nucl-ex?searchtype=author&query=Ballester%2C+F">F. Ballester</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlloch-Rodr%C3%ADguez%2C+J+M">J. M. Benlloch-Rodr铆guez</a>, <a href="/search/nucl-ex?searchtype=author&query=Borges%2C+F+I+G+M">F. I. G. M. Borges</a>, <a href="/search/nucl-ex?searchtype=author&query=C%C3%A1rcel%2C+S">S. C谩rcel</a>, <a href="/search/nucl-ex?searchtype=author&query=Carri%C3%B3n%2C+J+V">J. V. Carri贸n</a>, <a href="/search/nucl-ex?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/nucl-ex?searchtype=author&query=Church%2C+E">E. Church</a>, <a href="/search/nucl-ex?searchtype=author&query=Conde%2C+C+A+N">C. A. N. Conde</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+G">G. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=D%C3%ADaz%2C+J">J. D铆az</a>, <a href="/search/nucl-ex?searchtype=author&query=Diesburg%2C+M">M. Diesburg</a>, <a href="/search/nucl-ex?searchtype=author&query=Escada%2C+J">J. Escada</a>, <a href="/search/nucl-ex?searchtype=author&query=Esteve%2C+R">R. Esteve</a>, <a href="/search/nucl-ex?searchtype=author&query=Felkai%2C+R">R. Felkai</a> , et al. (61 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="1902.05544v4-abstract-short" style="display: inline;"> We report new measurements of the drift velocity and longitudinal diffusion coefficients of electrons in pure xenon gas and in xenon-helium gas mixtures at 1-9 bar and electric field strengths of 50-300 V/cm. In pure xenon we find excellent agreement with world data at all $E/P$, for both drift velocity and diffusion coefficients. However, a larger value of the longitudinal diffusion coefficient t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.05544v4-abstract-full').style.display = 'inline'; document.getElementById('1902.05544v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.05544v4-abstract-full" style="display: none;"> We report new measurements of the drift velocity and longitudinal diffusion coefficients of electrons in pure xenon gas and in xenon-helium gas mixtures at 1-9 bar and electric field strengths of 50-300 V/cm. In pure xenon we find excellent agreement with world data at all $E/P$, for both drift velocity and diffusion coefficients. However, a larger value of the longitudinal diffusion coefficient than theoretical predictions is found at low $E/P$ in pure xenon, below the range of reduced fields usually probed by TPC experiments. A similar effect is observed in xenon-helium gas mixtures at somewhat larger $E/P$. Drift velocities in xenon-helium mixtures are found to be theoretically well predicted. Although longitudinal diffusion in xenon-helium mixtures is found to be larger than anticipated, extrapolation based on the measured longitudinal diffusion coefficients suggest that the use of helium additives to reduce transverse diffusion in xenon gas remains a promising prospect. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.05544v4-abstract-full').style.display = 'none'; document.getElementById('1902.05544v4-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 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.01915">arXiv:1704.01915</a> <span> [<a href="https://arxiv.org/pdf/1704.01915">pdf</a>, <a href="https://arxiv.org/ps/1704.01915">ps</a>, <a href="https://arxiv.org/format/1704.01915">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> </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/PhysRevC.96.014320">10.1103/PhysRevC.96.014320 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Total Absorption Spectroscopy Study of the Beta Decay of $^{86}$Br and $^{91}$Rb </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Rice%2C+S">S. Rice</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Valencia%2C+E">E. Valencia</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Rubio%2C+B">B. Rubio</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Regan%2C+P+H">P. H. Regan</a>, <a href="/search/nucl-ex?searchtype=author&query=Zakari-Issoufou%2C+A+-">A. -A. Zakari-Issoufou</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallot%2C+M">M. Fallot</a>, <a href="/search/nucl-ex?searchtype=author&query=Porta%2C+A">A. Porta</a>, <a href="/search/nucl-ex?searchtype=author&query=Rissanen%2C+J">J. Rissanen</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%84yst%C3%B6%2C+J">J. 脛yst枚</a>, <a href="/search/nucl-ex?searchtype=author&query=Batist%2C+L">L. Batist</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Bui%2C+V+M">V. M. Bui</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Elomaa%2C+V+-">V. -V. Elomaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Estevez%2C+E">E. Estevez</a>, <a href="/search/nucl-ex?searchtype=author&query=Farrelly%2C+G+F">G. F. Farrelly</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+A+R">A. R. Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Hornillos%2C+B">B. Gomez-Hornillos</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorlychev%2C+V">V. Gorlychev</a> , et al. (14 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="1704.01915v1-abstract-short" style="display: inline;"> The beta decays of $^{86}$Br and $^{91}$Rb have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the IGISOL facility in Jyv盲skyl盲 and further purified using the JYFLTRAP. $^{86}$Br and $^{91}$Rb are considered to be major contributors to the decay heat in reactors. In addition $^{91}$Rb was used as a normalization point in direct measurements… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01915v1-abstract-full').style.display = 'inline'; document.getElementById('1704.01915v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.01915v1-abstract-full" style="display: none;"> The beta decays of $^{86}$Br and $^{91}$Rb have been studied using the total absorption spectroscopy technique. The radioactive nuclei were produced at the IGISOL facility in Jyv盲skyl盲 and further purified using the JYFLTRAP. $^{86}$Br and $^{91}$Rb are considered to be major contributors to the decay heat in reactors. In addition $^{91}$Rb was used as a normalization point in direct measurements of mean gamma energies released in the beta decay of fission products by Rudstam {\it et al.} assuming that this decay was well known from high-resolution measurements. Our results show that both decays were suffering from the {\it Pandemonium} effect and that the results of Rudstam {\it et al.} should be renormalized. The relative impact of the studied decays in the prediction of the decay heat and antineutrino spectrum from reactors has been evaluated. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01915v1-abstract-full').style.display = 'none'; document.getElementById('1704.01915v1-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 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2017. </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">11 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 96, 014320 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1701.03845">arXiv:1701.03845</a> <span> [<a href="https://arxiv.org/pdf/1701.03845">pdf</a>, <a href="https://arxiv.org/ps/1701.03845">ps</a>, <a href="https://arxiv.org/format/1701.03845">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> </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/PhysRevC.95.064322">10.1103/PhysRevC.95.064322 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $尾$-decay half-lives and $尾$-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb and Bi, beyond N=126 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Ameil%2C+F">F. Ameil</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayyad%2C+Y">Y. Ayyad</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A8s%2C+G">G. Cort猫s</a>, <a href="/search/nucl-ex?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Dillmann%2C+I">I. Dillmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Estrade%2C+A">A. Estrade</a>, <a href="/search/nucl-ex?searchtype=author&query=Evdokimov%2C+A">A. Evdokimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Faestermann%2C+T">T. Faestermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Farinon%2C+F">F. Farinon</a>, <a href="/search/nucl-ex?searchtype=author&query=Galaviz%2C+D">D. Galaviz</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+A+R">A. R. Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Geissel%2C+H">H. Geissel</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B3mez-Hornillos%2C+M+B">M. B. G贸mez-Hornillos</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C. Guerrero</a>, <a href="/search/nucl-ex?searchtype=author&query=Heil%2C+M">M. Heil</a> , et al. (36 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="1701.03845v1-abstract-short" style="display: inline;"> $Background:$ Previous measurements of $尾$-delayed neutron emitters comprise around 230 nuclei, spanning from the $^{8}$He up to $^{150}$La. Apart from $^{210}$Tl, with a minuscule branching ratio of 0.007\%, no other neutron emitter is measured yet beyond $A=150… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1701.03845v1-abstract-full').style.display = 'inline'; document.getElementById('1701.03845v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1701.03845v1-abstract-full" style="display: none;"> $Background:$ Previous measurements of $尾$-delayed neutron emitters comprise around 230 nuclei, spanning from the $^{8}$He up to $^{150}$La. Apart from $^{210}$Tl, with a minuscule branching ratio of 0.007\%, no other neutron emitter is measured yet beyond $A=150$. Therefore new data are needed, particularly in the heavy mass region around N=126, in order to guide theoretical models and to understand the formation of the third r-process peak at $A\sim195$. $Purpose:$ To measure both, $尾$-decay half-lives and neutron branching ratios of several neutron-rich Au, Hg, Tl, Pb and Bi isotopes beyond $N=126$. $Method:$ Ions of interest are produced by fragmentation of a $^{238}$U beam, selected and identified via the GSI-FRS fragment separator. A stack of segmented silicon detectors (SIMBA) is used to measure ion-implants and $尾$-decays. An array of 30 $^3$He tubes embedded in a polyethylene matrix (BELEN) is used to detect neutrons with high efficiency and selectivity. A self-triggered digital system is employed to acquire data and to enable time-correlations. The latter are analyzed with an analytical model and results for the half-lives and neutron-branching ratios are derived using the binned Maximum-Likelihood method. $Results:$ Twenty new $尾$-decay half-lives are reported for $^{204-206}$Au, $^{208-211}$Hg,$^{211-216}$Tl,$^{215-218}$Pb and $^{218-220}$Bi, nine of them for the first time. Neutron emission probabilities are reported for $^{210,211}$Hg and $^{211-216}$Tl. $Conclusions:$ The new $尾$-decay half-lives are in good agreement with previous measurements in this region. The measured neutron emission probabilities are comparable or smaller than values predicted by global models like RHB+RQRPA. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1701.03845v1-abstract-full').style.display = 'none'; document.getElementById('1701.03845v1-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> 13 January, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2017. </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">17 pages, 21 figures, will be submitted at PRC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 95, 064322 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.00200">arXiv:1612.00200</a> <span> [<a href="https://arxiv.org/pdf/1612.00200">pdf</a>, <a href="https://arxiv.org/format/1612.00200">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> </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/PhysRevC.95.034604">10.1103/PhysRevC.95.034604 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutron capture cross section measurement of 238U at the n TOF CERN facility with C6D6 scintillation detectors in the energy region from 1 eV to 700 keV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Collaboration%2C+n">n_TOF Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=Mingrone%2C+F">F. Mingrone</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Vannini%2C+G">G. Vannini</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Gunsing%2C+F">F. Gunsing</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a> , et al. (81 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="1612.00200v1-abstract-short" style="display: inline;"> The aim of this work is to provide a precise and accurate measurement of the 238U(n,g) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundamental importance for the design calculations of nuclear reactors, governing the behaviour of the reactor core. In particular, fast reactors, which are experiencing a growing interest for their ability to burn radioactive… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.00200v1-abstract-full').style.display = 'inline'; document.getElementById('1612.00200v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.00200v1-abstract-full" style="display: none;"> The aim of this work is to provide a precise and accurate measurement of the 238U(n,g) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundamental importance for the design calculations of nuclear reactors, governing the behaviour of the reactor core. In particular, fast reactors, which are experiencing a growing interest for their ability to burn radioactive waste, operate in the high energy region of the neutron spectrum. In this energy region most recent evaluations disagree due to inconsistencies in the existing measurements of up to 15%. In addition, the assessment of nuclear data uncertainty performed for innovative reactor systems shows that the uncertainty in the radiative capture cross-section of 238U should be further reduced to 1-3% in the energy region from 20 eV to 25 keV. To this purpose, addressed by the Nuclear Energy Agency as a priority nuclear data need, complementary experiments, one at the GELINA and two at the n_TOF facility, were proposed and carried out within the 7th Framework Project ANDES of the European Commission. The results of one of these 238U(n,g) measurements performed at the n_TOF CERN facility are presented in this work. The gamma-ray cascade following the radiative neutron capture has been detected exploiting a setup of two C6D6 liquid scintillators. Resonance parameters obtained from this work are on average in excellent agreement with the ones reported in evaluated libraries. In the unresolved resonance region, this work yields a cross section in agreement with evaluated libraries up to 80 keV, while for higher energies our results are significantly higher. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.00200v1-abstract-full').style.display = 'none'; document.getElementById('1612.00200v1-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> 1 December, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </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">15 pages, 10 captioned figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 95, 034604 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1609.06128">arXiv:1609.06128</a> <span> [<a href="https://arxiv.org/pdf/1609.06128">pdf</a>, <a href="https://arxiv.org/ps/1609.06128">ps</a>, <a href="https://arxiv.org/format/1609.06128">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> </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/PhysRevC.95.024320">10.1103/PhysRevC.95.024320 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Total Absorption Gamma-Ray Spectroscopy of 87Br, 88Br and 94Rb Beta-Delayed Neutron Emitters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Valencia%2C+E">E. Valencia</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Rubio%2C+B">B. Rubio</a>, <a href="/search/nucl-ex?searchtype=author&query=Rice%2C+S">S. Rice</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Regan%2C+P">P. Regan</a>, <a href="/search/nucl-ex?searchtype=author&query=Zakari-Issoufou%2C+A+-">A. -A. Zakari-Issoufou</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallot%2C+M">M. Fallot</a>, <a href="/search/nucl-ex?searchtype=author&query=Porta%2C+A">A. Porta</a>, <a href="/search/nucl-ex?searchtype=author&query=Rissanen%2C+J">J. Rissanen</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=Aysto%2C+J">J. Aysto</a>, <a href="/search/nucl-ex?searchtype=author&query=Batist%2C+L">L. Batist</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Bui%2C+V+M">V. M. Bui</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Elomaa%2C+V+-">V. -V. Elomaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Estevez%2C+E">E. Estevez</a>, <a href="/search/nucl-ex?searchtype=author&query=Farrelly%2C+G+F">G. F. Farrelly</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+A+R">A. R. Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Hornillos%2C+B">B. Gomez-Hornillos</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorlychev%2C+V">V. Gorlychev</a> , et al. (13 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="1609.06128v1-abstract-short" style="display: inline;"> We investigate the decay of 87Br, 88Br and 94Rb using total absorption gamma-ray spectroscopy. These important fission products are beta-delayed neutron emitters. Our data show considerable gamma-intensity, so far unobserved in high-resolution gamma-ray spectroscopy, from states at high excitation energy. We also find significant differences with the beta intensity that can be deduced from existin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06128v1-abstract-full').style.display = 'inline'; document.getElementById('1609.06128v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1609.06128v1-abstract-full" style="display: none;"> We investigate the decay of 87Br, 88Br and 94Rb using total absorption gamma-ray spectroscopy. These important fission products are beta-delayed neutron emitters. Our data show considerable gamma-intensity, so far unobserved in high-resolution gamma-ray spectroscopy, from states at high excitation energy. We also find significant differences with the beta intensity that can be deduced from existing measurements of the beta spectrum. We evaluate the impact of the present data on reactor decay heat using summation calculations. Although the effect is relatively small it helps to reduce the discrepancy between calculations and integral measurements of the photon component for 235U fission at cooling times in the range 1 to 100 s. We also use summation calculations to evaluate the impact of present data on reactor antineutrino spectra. We find a significant effect at antineutrino energies in the range of 5 to 9 MeV. In addition, we observe an unexpected strong probability for gamma emission from neutron unbound states populated in the daughter nucleus. The gamma branching is compared to Hauser-Feshbach calculations which allow one to explain the large value for bromine isotopes as due to nuclear structure. However the branching for 94Rb, although much smaller, hints of the need to increase the radiative width by one order-of-magnitude. This leads to a similar increase in the calculated (n,gamma) cross section for this very neutron-rich nucleus with a potential impact on r-process abundance calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.06128v1-abstract-full').style.display = 'none'; document.getElementById('1609.06128v1-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 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 95, 024320 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.05749">arXiv:1604.05749</a> <span> [<a href="https://arxiv.org/pdf/1604.05749">pdf</a>, <a href="https://arxiv.org/format/1604.05749">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> </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/epja/i2016-16101-7">10.1140/epja/i2016-16101-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Integral measurement of the $^{12}$C(n,p)$^{12}$B reaction up to 10 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Ventura%2C+A">A. Ventura</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a> , et al. (80 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="1604.05749v1-abstract-short" style="display: inline;"> The integral measurement of the $^{12}$C(n,p)$^{12}$B reaction was performed at the neutron time of flight facility n_TOF at CERN. The total number of $^{12}$B nuclei produced per neutron pulse of the n_TOF beam was determined using the activation technique in combination with a time of flight technique. The cross section is integrated over the n_TOF neutron energy spectrum from reaction threshold… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.05749v1-abstract-full').style.display = 'inline'; document.getElementById('1604.05749v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.05749v1-abstract-full" style="display: none;"> The integral measurement of the $^{12}$C(n,p)$^{12}$B reaction was performed at the neutron time of flight facility n_TOF at CERN. The total number of $^{12}$B nuclei produced per neutron pulse of the n_TOF beam was determined using the activation technique in combination with a time of flight technique. The cross section is integrated over the n_TOF neutron energy spectrum from reaction threshold at 13.6 MeV to 10 GeV. Having been measured up to 1 GeV on basis of the $^{235}$U(n,f) reaction, the neutron energy spectrum above 200 MeV has been reevaluated due to the recent extension of the cross section reference for this particular reaction, which is otherwise considered a standard up to 200 MeV. The results from the dedicated GEANT4 simulations have been used to evaluate the neutron flux from 1 GeV up to 10 GeV. The experimental results related to the $^{12}$C(n,p)$^{12}$B reaction are compared with the evaluated cross sections from major libraries and with the predictions of different GEANT4 models, which mostly underestimate the $^{12}$B production. On the contrary, a good reproduction of the integral cross section derived from measurements is obtained with TALYS-1.6 calculations, with optimized parameters. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.05749v1-abstract-full').style.display = 'none'; document.getElementById('1604.05749v1-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 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </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">14 pages, 11 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. A 52 (2016) 101 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1511.01296">arXiv:1511.01296</a> <span> [<a href="https://arxiv.org/pdf/1511.01296">pdf</a>, <a href="https://arxiv.org/format/1511.01296">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="Nuclear Theory">nucl-th</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.117.012501">10.1103/PhysRevLett.117.012501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of several $尾$-delayed neutron emitting isotopes beyond N=126 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Domingo-Pardo%2C+C">C. Domingo-Pardo</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Ameil%2C+F">F. Ameil</a>, <a href="/search/nucl-ex?searchtype=author&query=Arcones%2C+A">A. Arcones</a>, <a href="/search/nucl-ex?searchtype=author&query=Ayyad%2C+Y">Y. Ayyad</a>, <a href="/search/nucl-ex?searchtype=author&query=Benlliure%2C+J">J. Benlliure</a>, <a href="/search/nucl-ex?searchtype=author&query=Borzov%2C+I+N">I. N. Borzov</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvino%2C+F">F. Calvino</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Davinson%2C+T">T. Davinson</a>, <a href="/search/nucl-ex?searchtype=author&query=Dillmann%2C+I">I. Dillmann</a>, <a href="/search/nucl-ex?searchtype=author&query=Estrade%2C+A">A. Estrade</a>, <a href="/search/nucl-ex?searchtype=author&query=Evdokimov%2C+A">A. Evdokimov</a>, <a href="/search/nucl-ex?searchtype=author&query=Faestermann%2C+T">T. Faestermann</a>, <a href="/search/nucl-ex?searchtype=author&query=Farinon%2C+F">F. Farinon</a>, <a href="/search/nucl-ex?searchtype=author&query=Galaviz%2C+D">D. Galaviz</a>, <a href="/search/nucl-ex?searchtype=author&query=Garc%C3%ADa%2C+A+R">A. R. Garc铆a</a>, <a href="/search/nucl-ex?searchtype=author&query=Geissel%2C+H">H. Geissel</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Gernh%C3%A4user%2C+R">R. Gernh盲user</a>, <a href="/search/nucl-ex?searchtype=author&query=G%C3%B3mez-Hornillos%2C+M+B">M. B. G贸mez-Hornillos</a> , et al. (40 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="1511.01296v1-abstract-short" style="display: inline;"> The $尾$-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with $尾$-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb and Bi in the mass region N$\gtrsim$126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenologi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.01296v1-abstract-full').style.display = 'inline'; document.getElementById('1511.01296v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1511.01296v1-abstract-full" style="display: none;"> The $尾$-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with $尾$-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb and Bi in the mass region N$\gtrsim$126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the $尾$-decay strength distribution. In doing so, it provides important constraints to global theoretical models currently used in $r$-process nucleosynthesis. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1511.01296v1-abstract-full').style.display = 'none'; document.getElementById('1511.01296v1-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 November, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2015. </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">Submitted to Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 117, 012501 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.02244">arXiv:1507.02244</a> <span> [<a href="https://arxiv.org/pdf/1507.02244">pdf</a>, <a href="https://arxiv.org/ps/1507.02244">ps</a>, <a href="https://arxiv.org/format/1507.02244">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/PhysRevC.92.034322">10.1103/PhysRevC.92.034322 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Gamow-Teller transitions and magnetic moments using various interactions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+R">Ricardo Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Zamick%2C+L">Larry Zamick</a> </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="1507.02244v4-abstract-short" style="display: inline;"> In a single j-shell calculation we consider the effects of several different interactions on the values of Gamow-Teller (B(GT)'s) and magnetic moments. The interactions used are MBZE, J=0 pairing, J_{max} pairing and half and half. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.02244v4-abstract-full" style="display: none;"> In a single j-shell calculation we consider the effects of several different interactions on the values of Gamow-Teller (B(GT)'s) and magnetic moments. The interactions used are MBZE, J=0 pairing, J_{max} pairing and half and half. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.02244v4-abstract-full').style.display = 'none'; document.getElementById('1507.02244v4-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 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 92, 034322 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.05490">arXiv:1505.05490</a> <span> [<a href="https://arxiv.org/pdf/1505.05490">pdf</a>, <a href="https://arxiv.org/ps/1505.05490">ps</a>, <a href="https://arxiv.org/format/1505.05490">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> </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.115.062502">10.1103/PhysRevLett.115.062502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Enhanced Gamma-Ray Emission from Neutron Unbound States Populated in Beta Decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Valencia%2C+E">E. Valencia</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=Rubio%2C+B">B. Rubio</a>, <a href="/search/nucl-ex?searchtype=author&query=Rice%2C+S">S. Rice</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Regan%2C+P">P. Regan</a>, <a href="/search/nucl-ex?searchtype=author&query=Zakari-Issoufou%2C+A+-">A. -A. Zakari-Issoufou</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallot%2C+M">M. Fallot</a>, <a href="/search/nucl-ex?searchtype=author&query=Porta%2C+A">A. Porta</a>, <a href="/search/nucl-ex?searchtype=author&query=Rissanen%2C+J">J. Rissanen</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=Aysto%2C+J">J. Aysto</a>, <a href="/search/nucl-ex?searchtype=author&query=Batist%2C+L">L. Batist</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Bui%2C+V+M">V. M. Bui</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Elomaa%2C+V+-">V. -V. Elomaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Estevez%2C+E">E. Estevez</a>, <a href="/search/nucl-ex?searchtype=author&query=Farrelly%2C+G+F">G. F. Farrelly</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+A+R">A. R. Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Hornillos%2C+B">B. Gomez-Hornillos</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorlychev%2C+V">V. Gorlychev</a> , et al. (13 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="1505.05490v1-abstract-short" style="display: inline;"> Total absorption spectroscopy was used to investigate the beta-decay intensity to states above the neutron separation energy followed by gamma-ray emission in 87,88Br and 94Rb. Accurate results were obtained thanks to a careful control of systematic errors. An unexpectedly large gamma intensity was observed in all three cases extending well beyond the excitation energy region where neutron penetra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.05490v1-abstract-full').style.display = 'inline'; document.getElementById('1505.05490v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.05490v1-abstract-full" style="display: none;"> Total absorption spectroscopy was used to investigate the beta-decay intensity to states above the neutron separation energy followed by gamma-ray emission in 87,88Br and 94Rb. Accurate results were obtained thanks to a careful control of systematic errors. An unexpectedly large gamma intensity was observed in all three cases extending well beyond the excitation energy region where neutron penetration is hindered by low neutron energy. The gamma branching as a function of excitation energy was compared to Hauser-Feshbach model calculations. For 87Br and 88Br the gamma branching reaches 57% and 20% respectively, and could be explained as a nuclear structure effect. Some of the states populated in the daughter can only decay through the emission of a large orbital angular momentum neutron with a strongly reduced barrier penetrability. In the case of neutron-rich 94Rb the observed 4.5% branching is much larger than the calculations performed with standard nuclear statistical model parameters, even after proper correction for fluctuation effects on individual transition widths. The difference can be reconciled introducing an enhancement of one order-of-magnitude in the photon strength to neutron strength ratio. An increase in the photon strength function of such magnitude for very neutron-rich nuclei, if it proved to be correct, leads to a similar increase in the (n,gamma) cross section that would have an impact on r-process abundance calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.05490v1-abstract-full').style.display = 'none'; document.getElementById('1505.05490v1-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 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2015. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1504.05812">arXiv:1504.05812</a> <span> [<a href="https://arxiv.org/pdf/1504.05812">pdf</a>, <a href="https://arxiv.org/format/1504.05812">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 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.115.102503">10.1103/PhysRevLett.115.102503 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Total Absorption Spectroscopy Study of $^{92}$Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Zakari-Issoufou%2C+A+-">A. -A. Zakari-Issoufou</a>, <a href="/search/nucl-ex?searchtype=author&query=Fallot%2C+M">M. Fallot</a>, <a href="/search/nucl-ex?searchtype=author&query=Porta%2C+A">A. Porta</a>, <a href="/search/nucl-ex?searchtype=author&query=Algora%2C+A">A. Algora</a>, <a href="/search/nucl-ex?searchtype=author&query=Tain%2C+J+L">J. L. Tain</a>, <a href="/search/nucl-ex?searchtype=author&query=Valencia%2C+E">E. Valencia</a>, <a href="/search/nucl-ex?searchtype=author&query=Rice%2C+S">S. Rice</a>, <a href="/search/nucl-ex?searchtype=author&query=Bui%2C+V+M">V. M Bui</a>, <a href="/search/nucl-ex?searchtype=author&query=Cormon%2C+S">S. Cormon</a>, <a href="/search/nucl-ex?searchtype=author&query=Estienne%2C+M">M. Estienne</a>, <a href="/search/nucl-ex?searchtype=author&query=Agramunt%2C+J">J. Agramunt</a>, <a href="/search/nucl-ex?searchtype=author&query=%C3%84yst%C3%B6%2C+J">J. 脛yst枚</a>, <a href="/search/nucl-ex?searchtype=author&query=Bowry%2C+M">M. Bowry</a>, <a href="/search/nucl-ex?searchtype=author&query=Briz%2C+J+A">J. A. Briz</a>, <a href="/search/nucl-ex?searchtype=author&query=Caballero-Folch%2C+R">R. Caballero-Folch</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Cucoanes%2C+A">A. Cucoanes</a>, <a href="/search/nucl-ex?searchtype=author&query=Elomaa%2C+V+-">V. -V. Elomaa</a>, <a href="/search/nucl-ex?searchtype=author&query=Eronen%2C+T">T. Eronen</a>, <a href="/search/nucl-ex?searchtype=author&query=Est%C3%A9vez%2C+E">E. Est茅vez</a>, <a href="/search/nucl-ex?searchtype=author&query=Farrelly%2C+G+F">G. F. Farrelly</a>, <a href="/search/nucl-ex?searchtype=author&query=Garcia%2C+A+R">A. R. Garcia</a>, <a href="/search/nucl-ex?searchtype=author&query=Gelletly%2C+W">W. Gelletly</a>, <a href="/search/nucl-ex?searchtype=author&query=Gomez-Hornillos%2C+M+B">M. B Gomez-Hornillos</a>, <a href="/search/nucl-ex?searchtype=author&query=Gorlychev%2C+V">V. Gorlychev</a> , et al. (22 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="1504.05812v5-abstract-short" style="display: inline;"> The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. $^{92}$Rb makes the dominant contribution to the reactor spectrum in the 5-8 MeV range but its decay properties are in question. We have studied $^{92}$Rb decay with total absorption spectroscopy. Previously unobserved… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.05812v5-abstract-full').style.display = 'inline'; document.getElementById('1504.05812v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.05812v5-abstract-full" style="display: none;"> The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. $^{92}$Rb makes the dominant contribution to the reactor spectrum in the 5-8 MeV range but its decay properties are in question. We have studied $^{92}$Rb decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.05812v5-abstract-full').style.display = 'none'; document.getElementById('1504.05812v5-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 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2015. </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">6 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 115, 102503 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.7737">arXiv:1410.7737</a> <span> [<a href="https://arxiv.org/pdf/1410.7737">pdf</a>, <a href="https://arxiv.org/format/1410.7737">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> </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/PhysRevC.91.024602">10.1103/PhysRevC.91.024602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High accuracy determination of the $^{238}$U/$^{235}$U fission cross section ratio up to $\sim$1 GeV at n_TOF (CERN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Paradela%2C+C">C. Paradela</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Tarr%C3%ADo%2C+D">D. Tarr铆o</a>, <a href="/search/nucl-ex?searchtype=author&query=Leal-Cidoncha%2C+E">E. Leal-Cidoncha</a>, <a href="/search/nucl-ex?searchtype=author&query=Leong%2C+L+S">L. S. Leong</a>, <a href="/search/nucl-ex?searchtype=author&query=Tassan-Got%2C+L">L. Tassan-Got</a>, <a href="/search/nucl-ex?searchtype=author&query=Naour%2C+C+L">C. Le Naour</a>, <a href="/search/nucl-ex?searchtype=author&query=Duran%2C+I">I. Duran</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Mastromarco%2C+M">M. Mastromarco</a>, <a href="/search/nucl-ex?searchtype=author&query=Meo%2C+S+L">S. Lo Meo</a>, <a href="/search/nucl-ex?searchtype=author&query=Ventura%2C+A">A. Ventura</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a> , et al. (82 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="1410.7737v2-abstract-short" style="display: inline;"> The $^{238}$U to $^{235}$U fission cross section ratio has been determined at n_TOF up to $\sim$1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets have been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3-4%. The data collected at n_TOF have been suitably combined to yield a un… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.7737v2-abstract-full').style.display = 'inline'; document.getElementById('1410.7737v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.7737v2-abstract-full" style="display: none;"> The $^{238}$U to $^{235}$U fission cross section ratio has been determined at n_TOF up to $\sim$1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets have been collected and compared. They are all consistent to each other within the relative systematic uncertainty of 3-4%. The data collected at n_TOF have been suitably combined to yield a unique fission cross section ratio as a function of the neutron energy. The result confirms current evaluations up to 200 MeV. A good agreement is also observed with theoretical calculations based on the INCL++/Gemini++ combination up to the highest measured energy. The n_TOF results may help solving a long-standing discrepancy between the two most important experimental dataset available so far above 20 MeV, while extending the neutron energy range for the first time up to $\sim$1 GeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.7737v2-abstract-full').style.display = 'none'; document.getElementById('1410.7737v2-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> 29 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1408.6652">arXiv:1408.6652</a> <span> [<a href="https://arxiv.org/pdf/1408.6652">pdf</a>, <a href="https://arxiv.org/format/1408.6652">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> </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/PhysRevC.90.021601">10.1103/PhysRevC.90.021601 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the $^{12}$C($n,p$)$^{12}$B cross section at n_TOF (CERN) by in-beam activation analysis </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Mengoni%2C+A">A. Mengoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+F+C+D">F. Calvi帽o D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Cosentino%2C+L">L. Cosentino</a>, <a href="/search/nucl-ex?searchtype=author&query=Diakaki%2C+M">M. Diakaki</a> , et al. (79 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="1408.6652v1-abstract-short" style="display: inline;"> The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $尾$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.6652v1-abstract-full').style.display = 'inline'; document.getElementById('1408.6652v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1408.6652v1-abstract-full" style="display: none;"> The integral cross section of the $^{12}$C($n,p$)$^{12}$B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n_TOF facility at CERN. The measurement relies on the activation technique, with the $尾$-decay of $^{12}$B measured over a period of four half-lives within the same neutron bunch in which the reaction occurs. The results indicate that model predictions, used in a variety of applications, are mostly inadequate. The value of the integral cross section reported here can be used as a benchmark for verifying or tuning model calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1408.6652v1-abstract-full').style.display = 'none'; document.getElementById('1408.6652v1-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 August, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2014. </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">6 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 90, 021601(R) (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.6865">arXiv:1406.6865</a> <span> [<a href="https://arxiv.org/pdf/1406.6865">pdf</a>, <a href="https://arxiv.org/format/1406.6865">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-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/10.1016/j.nima.2014.05.048">10.1016/j.nima.2014.05.048 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> GEANT4 simulation of the neutron background of the C$_6$D$_6$ set-up for capture studies at n_TOF </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=collaboration%2C+n">n_TOF collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a> , et al. (83 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="1406.6865v1-abstract-short" style="display: inline;"> The neutron sensitivity of the C$_6$D$_6$ detector setup used at n_TOF for capture measurements has been studied by means of detailed GEANT4 simulations. A realistic software replica of the entire n_TOF experimental hall, including the neutron beam line, sample, detector supports and the walls of the experimental area has been implemented in the simulations. The simulations have been analyzed in t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.6865v1-abstract-full').style.display = 'inline'; document.getElementById('1406.6865v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.6865v1-abstract-full" style="display: none;"> The neutron sensitivity of the C$_6$D$_6$ detector setup used at n_TOF for capture measurements has been studied by means of detailed GEANT4 simulations. A realistic software replica of the entire n_TOF experimental hall, including the neutron beam line, sample, detector supports and the walls of the experimental area has been implemented in the simulations. The simulations have been analyzed in the same manner as experimental data, in particular by applying the Pulse Height Weighting Technique. The simulations have been validated against a measurement of the neutron background performed with a $^\mathrm{nat}$C sample, showing an excellent agreement above 1 keV. At lower energies, an additional component in the measured $^\mathrm{nat}$C yield has been discovered, which prevents the use of $^\mathrm{nat}$C data for neutron background estimates at neutron energies below a few hundred eV. The origin and time structure of the neutron background have been derived from the simulations. Examples of the neutron background for two different samples are demonstrating the important role of accurate simulations of the neutron background in capture cross section measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.6865v1-abstract-full').style.display = 'none'; document.getElementById('1406.6865v1-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 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> P. Zugec, N. Colonna, D. Bosnar et al., Nucl. Instrum. Methods A 760, 57 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1403.4778">arXiv:1403.4778</a> <span> [<a href="https://arxiv.org/pdf/1403.4778">pdf</a>, <a href="https://arxiv.org/format/1403.4778">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> </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/PhysRevC.89.025810">10.1103/PhysRevC.89.025810 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $^{62}$Ni($n,纬$) and $^{63}$Ni($n,纬$) cross sections measured at n_TOF/CERN </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lederer%2C+C">C. Lederer</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Dressler%2C+R">R. Dressler</a>, <a href="/search/nucl-ex?searchtype=author&query=Guerrero%2C+C">C. Guerrero</a>, <a href="/search/nucl-ex?searchtype=author&query=Gunsing%2C+F">F. Gunsing</a>, <a href="/search/nucl-ex?searchtype=author&query=K%C3%A4ppeler%2C+F">F. K盲ppeler</a>, <a href="/search/nucl-ex?searchtype=author&query=Kivel%2C+N">N. Kivel</a>, <a href="/search/nucl-ex?searchtype=author&query=Pignatari%2C+M">M. Pignatari</a>, <a href="/search/nucl-ex?searchtype=author&query=Reifarth%2C+R">R. Reifarth</a>, <a href="/search/nucl-ex?searchtype=author&query=Schumann%2C+D">D. Schumann</a>, <a href="/search/nucl-ex?searchtype=author&query=Wallner%2C+A">A. Wallner</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andriamonje%2C+S">S. Andriamonje</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Becares%2C+V">V. Becares</a>, <a href="/search/nucl-ex?searchtype=author&query=Becvar%2C+F">F. Becvar</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthier%2C+B">B. Berthier</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a> , et al. (90 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="1403.4778v1-abstract-short" style="display: inline;"> The cross section of the $^{62}$Ni($n,纬$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement wit… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.4778v1-abstract-full').style.display = 'inline'; document.getElementById('1403.4778v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1403.4778v1-abstract-full" style="display: none;"> The cross section of the $^{62}$Ni($n,纬$) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200~keV neutron energy and Maxwellian averaged cross sections (MACS) from $kT=5-100$ keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at $kT=30$ keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the $^{63}$Ni($n,纬$) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on $s$-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1403.4778v1-abstract-full').style.display = 'none'; document.getElementById('1403.4778v1-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 March, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review C 89, 025810 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1402.1032">arXiv:1402.1032</a> <span> [<a href="https://arxiv.org/pdf/1402.1032">pdf</a>, <a href="https://arxiv.org/format/1402.1032">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> </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/PhysRevC.89.014605">10.1103/PhysRevC.89.014605 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Experimental neutron capture data of $^{58}$Ni from the CERN n_TOF facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=collaboration%2C+n">n_TOF collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/nucl-ex?searchtype=author&query=%C5%BDugec%2C+P">P. 沤ugec</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Be%C4%8Dv%C3%A1%C5%99%2C+F">F. Be膷v谩艡</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a> , et al. (78 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="1402.1032v1-abstract-short" style="display: inline;"> The $^{58}$Ni $(n,纬)$ cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances have been analyzed up to 122 keV. Maxwellian averaged cross sections (MACS) have been calculated for stellar temperatures of kT$=$5-100 keV with uncertainties of less than 6%, showing fair agreement with recent experiment… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.1032v1-abstract-full').style.display = 'inline'; document.getElementById('1402.1032v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1402.1032v1-abstract-full" style="display: none;"> The $^{58}$Ni $(n,纬)$ cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances have been analyzed up to 122 keV. Maxwellian averaged cross sections (MACS) have been calculated for stellar temperatures of kT$=$5-100 keV with uncertainties of less than 6%, showing fair agreement with recent experimental and evaluated data up to kT = 50 keV. The MACS extracted in the present work at 30 keV is 34.2$\pm$0.6$_\mathrm{stat}\pm$1.8$_\mathrm{sys}$ mb, in agreement with latest results and evaluations, but 12% lower relative to the recent KADoNIS compilation of astrophysical cross sections. When included in models of the s-process nucleosynthesis in massive stars, this change results in a 60% increase of the abundance of $^{58}$Ni, with a negligible propagation on heavier isotopes. The reason is that, using both the old or the new MACS, 58Ni is efficiently depleted by neutron captures. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1402.1032v1-abstract-full').style.display = 'none'; document.getElementById('1402.1032v1-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 February, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2014. </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">10 pages, 8 figures, 5 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> P. 沤ugec, M. Barbagallo, N. Colonna, et al., Phys. Rev. C 89, 014605 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1304.3310">arXiv:1304.3310</a> <span> [<a href="https://arxiv.org/pdf/1304.3310">pdf</a>, <a href="https://arxiv.org/format/1304.3310">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="Solar and Stellar Astrophysics">astro-ph.SR</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.110.022501">10.1103/PhysRevLett.110.022501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Lederer%2C+C">C. Lederer</a>, <a href="/search/nucl-ex?searchtype=author&query=Massimi%2C+C">C. Massimi</a>, <a href="/search/nucl-ex?searchtype=author&query=Altstadt%2C+S">S. Altstadt</a>, <a href="/search/nucl-ex?searchtype=author&query=Andrzejewski%2C+J">J. Andrzejewski</a>, <a href="/search/nucl-ex?searchtype=author&query=Audouin%2C+L">L. Audouin</a>, <a href="/search/nucl-ex?searchtype=author&query=Barbagallo%2C+M">M. Barbagallo</a>, <a href="/search/nucl-ex?searchtype=author&query=B%C3%A9cares%2C+V">V. B茅cares</a>, <a href="/search/nucl-ex?searchtype=author&query=Bev%C3%A1%2C+F">F. Bev谩</a>, <a href="/search/nucl-ex?searchtype=author&query=Belloni%2C+F">F. Belloni</a>, <a href="/search/nucl-ex?searchtype=author&query=Berthoumieux%2C+E">E. Berthoumieux</a>, <a href="/search/nucl-ex?searchtype=author&query=Billowes%2C+J">J. Billowes</a>, <a href="/search/nucl-ex?searchtype=author&query=Boccone%2C+V">V. Boccone</a>, <a href="/search/nucl-ex?searchtype=author&query=Bosnar%2C+D">D. Bosnar</a>, <a href="/search/nucl-ex?searchtype=author&query=Brugger%2C+M">M. Brugger</a>, <a href="/search/nucl-ex?searchtype=author&query=Calviani%2C+M">M. Calviani</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvi%C3%B1o%2C+F">F. Calvi帽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cano-Ott%2C+D">D. Cano-Ott</a>, <a href="/search/nucl-ex?searchtype=author&query=Carrapi%C3%A7o%2C+C">C. Carrapi莽o</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerutti%2C+F">F. Cerutti</a>, <a href="/search/nucl-ex?searchtype=author&query=Chiaveri%2C+E">E. Chiaveri</a>, <a href="/search/nucl-ex?searchtype=author&query=Chin%2C+M">M. Chin</a>, <a href="/search/nucl-ex?searchtype=author&query=Colonna%2C+N">N. Colonna</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s%2C+G">G. Cort茅s</a>, <a href="/search/nucl-ex?searchtype=author&query=Cort%C3%A9s-Giraldo%2C+M+A">M. A. Cort茅s-Giraldo</a>, <a href="/search/nucl-ex?searchtype=author&query=Diakaki%2C+M">M. Diakaki</a> , et al. (80 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="1304.3310v1-abstract-short" style="display: inline;"> The $^{63}$Ni($n, 纬$) cross section has been measured for the first time at the neutron time-of-flight facility n\_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian Averaged Cross Sections were calculated for thermal energies from kT = 5 keV to 100 keV with uncertainties around 20%. Stellar model calculations for a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3310v1-abstract-full').style.display = 'inline'; document.getElementById('1304.3310v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1304.3310v1-abstract-full" style="display: none;"> The $^{63}$Ni($n, 纬$) cross section has been measured for the first time at the neutron time-of-flight facility n\_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian Averaged Cross Sections were calculated for thermal energies from kT = 5 keV to 100 keV with uncertainties around 20%. Stellar model calculations for a 25 M$_\odot$ star show that the new data have a significant effect on the $s$-process production of $^{63}$Cu, $^{64}$Ni, and $^{64}$Zn in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1304.3310v1-abstract-full').style.display = 'none'; document.getElementById('1304.3310v1-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 April, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 110, 022501 5 (2013) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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