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<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/2410.13515">arXiv:2410.13515</a> <span> [<a href="https://arxiv.org/pdf/2410.13515">pdf</a>, <a href="https://arxiv.org/format/2410.13515">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="High Energy Physics - Lattice">hep-lat</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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/s41467-024-55042-y">10.1038/s41467-024-55042-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a rare beta decay of the charmed baryon with a Graph Neural Network </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (637 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="2410.13515v2-abstract-short" style="display: inline;"> The beta decay of the lightest charmed baryon $螞_c^+$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbo-suppressed decay… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13515v2-abstract-full').style.display = 'inline'; document.getElementById('2410.13515v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.13515v2-abstract-full" style="display: none;"> The beta decay of the lightest charmed baryon $螞_c^+$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for investigating non-perturbative quantum chromodynamics and constraining the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters. This article presents the first observation of the Cabibbo-suppressed decay $螞_c^+ \rightarrow n e^+ 谓_{e}$, utilizing $4.5~\mathrm{fb}^{-1}$ of electron-positron annihilation data collected with the BESIII detector. A novel Graph Neural Network based technique effectively separates signals from dominant backgrounds, notably $螞_c^+ \rightarrow 螞e^+ 谓_{e}$, achieving a statistical significance exceeding $10蟽$. The absolute branching fraction is measured to be $(3.57\pm0.34_{\mathrm{stat.}}\pm0.14_{\mathrm{syst.}})\times 10^{-3}$. For the first time, the CKM matrix element $\left|V_{cd}\right|$ is extracted via a charmed baryon decay as $0.208\pm0.011_{\rm exp.}\pm0.007_{\rm LQCD}\pm0.001_{蟿_{螞_c^+}}$. This work highlights a new approach to further understand fundamental interactions in the charmed baryon sector, and showcases the power of modern machine learning techniques in experimental high-energy physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.13515v2-abstract-full').style.display = 'none'; document.getElementById('2410.13515v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Commun. 16, 681 (2025) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.09012">arXiv:2401.09012</a> <span> [<a href="https://arxiv.org/pdf/2401.09012">pdf</a>, <a href="https://arxiv.org/format/2401.09012">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"> First study of antihyperon-nucleon scattering $\bar螞p\rightarrow\bar螞p$ and measurement of $螞p\rightarrow螞p$ cross section </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (634 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="2401.09012v2-abstract-short" style="display: inline;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the processes $螞p\rightarrow螞p$ and $\bar螞p\rightarrow\bar螞p$ are studied, where the $螞/\bar螞$ baryons are produced in the process $J/蠄\rightarrow螞\bar螞$ and the protons are the hydrogen nuclei in the cooling oil of the beam pipe. Clear signals are observed for the two reactions. The cr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.09012v2-abstract-full').style.display = 'inline'; document.getElementById('2401.09012v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.09012v2-abstract-full" style="display: none;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the processes $螞p\rightarrow螞p$ and $\bar螞p\rightarrow\bar螞p$ are studied, where the $螞/\bar螞$ baryons are produced in the process $J/蠄\rightarrow螞\bar螞$ and the protons are the hydrogen nuclei in the cooling oil of the beam pipe. Clear signals are observed for the two reactions. The cross sections in $-0.9\leq\rm{cos}胃_{螞/\bar螞}\leq0.9$ are measured to be $蟽(螞p\rightarrow螞p)=(12.2\pm1.6_{\rm{stat}}\pm1.1_{\rm{sys}})$ mb and $蟽(\bar螞 p\rightarrow\bar螞 p)=(17.5\pm2.1_{\rm{stat}}\pm1.6_{\rm{sys}})$ mb at the $螞/\bar螞$ momentum of $1.074$ GeV/$c$ within a range of $\pm0.017$ GeV/$c$, where the $胃_{螞/\bar螞}$ are the scattering angles of the $螞/\bar螞$ in the $螞p/\bar螞p$ rest frames. Furthermore, the differential cross sections of the two reactions are also measured, where there is a slight tendency of forward scattering for $螞p\rightarrow螞p$, and a strong forward peak for $\bar螞p\rightarrow\bar螞p$. We present an approach to extract the total elastic cross sections by extrapolation. The study of $\bar螞p\rightarrow\bar螞p$ represents the first study of antihyperon-nucleon scattering, and these new measurements will serve as important inputs for the theoretical understanding of the (anti)hyperon-nucleon interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.09012v2-abstract-full').style.display = 'none'; document.getElementById('2401.09012v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 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">9 pages, 5 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/2310.00720">arXiv:2310.00720</a> <span> [<a href="https://arxiv.org/pdf/2310.00720">pdf</a>, <a href="https://arxiv.org/format/2310.00720">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.L052201">10.1103/PhysRevC.109.L052201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of $螞N$ inelastic scattering with $螞$ from $e^{+} e^{-} \rightarrow J/蠄\to 螞\bar螞$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Afedulidis%2C+O">O. Afedulidis</a>, <a href="/search/nucl-ex?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Bao%2C+H+-">H. -R. Bao</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (626 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="2310.00720v1-abstract-short" style="display: inline;"> Using an $e^+ e^-$ collision data sample of $(10087 \pm 44)\times10^6 ~J/蠄$ events taken at the center-of-mass energy of $3.097~\rm{GeV}$ by the BESIII detector at the BEPCII collider, the process $螞+N \rightarrow 危^+ + X$ is studied for the first time employing a novel method. The $危^{+}$ hyperons are produced by the collisions of $螞$ hyperons from $J/蠄$ decays with nuclei in the material of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00720v1-abstract-full').style.display = 'inline'; document.getElementById('2310.00720v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.00720v1-abstract-full" style="display: none;"> Using an $e^+ e^-$ collision data sample of $(10087 \pm 44)\times10^6 ~J/蠄$ events taken at the center-of-mass energy of $3.097~\rm{GeV}$ by the BESIII detector at the BEPCII collider, the process $螞+N \rightarrow 危^+ + X$ is studied for the first time employing a novel method. The $危^{+}$ hyperons are produced by the collisions of $螞$ hyperons from $J/蠄$ decays with nuclei in the material of the BESIII detector. The total cross section of $螞+ ^{9}{\rm Be} \rightarrow 危^+ + X$ is measured to be $蟽= (37.3 \pm 4.7 \pm 3.5)~{\rm mb}$ at $螞$ beam momenta within $[1.057, 1.091]~{\rm GeV}/c$, where the uncertainties are statistical and systematic, respectively. This analysis is the first study of $螞$-nucleon interactions at an $e^+ e^-$ collider, providing information and constraints relevant for the strong-interaction potential, the origin of color confinement, the unified model for baryon-baryon interactions, and the internal structure of neutron stars. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00720v1-abstract-full').style.display = 'none'; document.getElementById('2310.00720v1-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 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.13921">arXiv:2304.13921</a> <span> [<a href="https://arxiv.org/pdf/2304.13921">pdf</a>, <a href="https://arxiv.org/ps/2304.13921">ps</a>, <a href="https://arxiv.org/format/2304.13921">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="High Energy Physics - Phenomenology">hep-ph</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="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.130.251902">10.1103/PhysRevLett.130.251902 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First study of reaction $螢^{0}n\rightarrow螢^{-}p$ using $螢^0$-nucleus scattering at an electron-positron collider </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Batozskaya%2C+V">V. Batozskaya</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Berlowski%2C+M">M. Berlowski</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+E">E. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/nucl-ex?searchtype=author&query=Brueggemann%2C+A">A. Brueggemann</a> , et al. (593 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="2304.13921v3-abstract-short" style="display: inline;"> Using $(1.0087\pm0.0044)\times10^{10}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the process $螢^{0}n\rightarrow螢^{-}p$ is studied, where the $螢^0$ baryon is produced in the process $J/蠄\rightarrow螢^0\bar螢^0$ and the neutron is a component of the $^9\rm{Be}$, $^{12}\rm{C}$ and $^{197}\rm{Au}$ nuclei in the beam pipe. A clear signal is observed with a statistical si… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13921v3-abstract-full').style.display = 'inline'; document.getElementById('2304.13921v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.13921v3-abstract-full" style="display: none;"> Using $(1.0087\pm0.0044)\times10^{10}$ $J/蠄$ events collected with the BESIII detector at the BEPCII storage ring, the process $螢^{0}n\rightarrow螢^{-}p$ is studied, where the $螢^0$ baryon is produced in the process $J/蠄\rightarrow螢^0\bar螢^0$ and the neutron is a component of the $^9\rm{Be}$, $^{12}\rm{C}$ and $^{197}\rm{Au}$ nuclei in the beam pipe. A clear signal is observed with a statistical significance of $7.1蟽$. The cross section of the reaction $螢^0+{^9\rm{Be}}\rightarrow螢^-+p+{^8\rm{Be}}$ is determined to be $蟽(螢^0+{^9\rm{Be}}\rightarrow螢^-+p+{^8\rm{Be}})=(22.1\pm5.3_{\rm{stat}}\pm4.5_{\rm{sys}})$ mb at the $螢^0$ momentum of $0.818$ GeV/$c$, where the first uncertainty is statistical and the second is systematic. No significant $H$-dibaryon signal is observed in the $螢^-p$ final state. This is the first study of hyperon-nucleon interactions in electron-positron collisions and opens up a new direction for such research. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13921v3-abstract-full').style.display = 'none'; document.getElementById('2304.13921v3-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 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">13 pages, 7 figures, with Supplemental Material</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.07855">arXiv:2011.07855</a> <span> [<a href="https://arxiv.org/pdf/2011.07855">pdf</a>, <a href="https://arxiv.org/ps/2011.07855">ps</a>, <a href="https://arxiv.org/format/2011.07855">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="High Energy Physics - Phenomenology">hep-ph</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="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.126.102001">10.1103/PhysRevLett.126.102001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of a near-threshold structure in the $K^+$ recoil-mass spectra in $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Anita"> Anita</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/nucl-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Biernat%2C+J">J Biernat</a>, <a href="/search/nucl-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/nucl-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a> , et al. (481 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="2011.07855v2-abstract-short" style="display: inline;"> We report a study of the processes of $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ based on $e^+e^-$ annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb$^{-1}$. An excess over the known contributions of the conventional charmed mesons is observed near the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.07855v2-abstract-full').style.display = 'inline'; document.getElementById('2011.07855v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.07855v2-abstract-full" style="display: none;"> We report a study of the processes of $e^+e^-\to K^+ (D_s^- D^{*0} + D^{*-}_s D^0)$ based on $e^+e^-$ annihilation samples collected with the BESIII detector operating at BEPCII at five center-of-mass energies ranging from 4.628 to 4.698 GeV with a total integrated luminosity of 3.7 fb$^{-1}$. An excess over the known contributions of the conventional charmed mesons is observed near the $D_s^- D^{*0}$ and $D^{*-}_s D^0$ mass thresholds in the $K^{+}$ recoil-mass spectrum for events collected at $\sqrt{s}=4.681$ GeV. The structure matches a mass-dependent-width Breit-Wigner line shape, whose pole mass and width are determined as $(3982.5^{+1.8}_{-2.6}\pm2.1)$ MeV/$c^2$ and $(12.8^{+5.3}_{-4.4}\pm3.0)$ MeV, respectively. The first uncertainties are statistical and the second are systematic. The significance of the resonance hypothesis is estimated to be 5.3 $蟽$ over the contributions only from the conventional charmed mesons. This is the first candidate of the charged hidden-charm tetraquark with strangeness, decaying into $D_s^- D^{*0}$ and $D^{*-}_s D^0$. However, the properties of the excess need further exploration with more statistics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.07855v2-abstract-full').style.display = 'none'; document.getElementById('2011.07855v2-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> 12 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">17 pages; Version published in 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. 126, 102001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.08917">arXiv:1808.08917</a> <span> [<a href="https://arxiv.org/pdf/1808.08917">pdf</a>, <a href="https://arxiv.org/format/1808.08917">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/10.1038/s41567-019-0494-8">10.1038/s41567-019-0494-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Polarization and Entanglement in Baryon-Antibaryon Pair Production in Electron-Positron Annihilation </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/nucl-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/nucl-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/nucl-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/nucl-ex?searchtype=author&query=Alekseev%2C+M">M. Alekseev</a>, <a href="/search/nucl-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/nucl-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/nucl-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/nucl-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/nucl-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/nucl-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/nucl-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/nucl-ex?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/nucl-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/nucl-ex?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/nucl-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/nucl-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/nucl-ex?searchtype=author&query=Cai%2C+X">X. Cai</a> , et al. (444 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="1808.08917v1-abstract-short" style="display: inline;"> Using a sample of $1.31\times 10^9$ $J/蠄$ events collected with the BESIII detector, we report the first observation of spin polarization of $螞$ and $\bar螞$ hyperons from the coherent production in the $J/蠄\to螞\bar螞$ decay. We measure the phase between the hadronic form factors to be $螖桅=(42.4\pm0.6\pm0.5)^\circ$. The decay parameters for $螞\to p蟺^-$ ($伪_-$), $\bar螞\to\bar p蟺^+$ ($伪_+$) and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.08917v1-abstract-full').style.display = 'inline'; document.getElementById('1808.08917v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.08917v1-abstract-full" style="display: none;"> Using a sample of $1.31\times 10^9$ $J/蠄$ events collected with the BESIII detector, we report the first observation of spin polarization of $螞$ and $\bar螞$ hyperons from the coherent production in the $J/蠄\to螞\bar螞$ decay. We measure the phase between the hadronic form factors to be $螖桅=(42.4\pm0.6\pm0.5)^\circ$. The decay parameters for $螞\to p蟺^-$ ($伪_-$), $\bar螞\to\bar p蟺^+$ ($伪_+$) and $\bar螞\to\bar n蟺^0$ ($\bar伪_0$) are measured to be $伪_-=0.750\pm0.009\pm0.004$, $伪_+=-0.758\pm0.010\pm0.007$ and $\bar伪_0=-0.692\pm0.016\pm0.006$, respectively. The obtained value of $伪_-$ is higher by $(17\pm 3)\%$ than the current world average. In addition, the $CP$ asymmetry of $-0.006\pm0.012\pm0.007$ is extracted with substantially improved precision. The ratio $\bar伪_0/伪_{+} = 0.913\pm 0.028 \pm 0.012$ is also measured. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.08917v1-abstract-full').style.display = 'none'; document.getElementById('1808.08917v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </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, 6 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/1508.00139">arXiv:1508.00139</a> <span> [<a href="https://arxiv.org/pdf/1508.00139">pdf</a>, <a href="https://arxiv.org/ps/1508.00139">ps</a>, <a href="https://arxiv.org/format/1508.00139">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.92.045204">10.1103/PhysRevC.92.045204 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> $危^- p$ emission rates in $K^-$ absorptions at rest on $^6$Li, $^7$Li, $^{9}$Be, $^{13}$C and $^{16}$O </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=FINUDA+Collaboration"> FINUDA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</a>, <a href="/search/nucl-ex?searchtype=author&query=Marcello%2C+S">S. Marcello</a> , et al. (10 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="1508.00139v3-abstract-short" style="display: inline;"> An experimental study of the $K^-_{stop}A\rightarrow 危^- p A'$ reaction on $A=^6$Li, $^7$Li, $^9$Be, $^{13}$C and $^{16}$O $p$-shell nuclei is presented. The data were collected by the FINUDA spectrometer operating at the DA$桅$NE $蠁$-factory (LNF-INFN, Italy). Emission rates for the reaction in the mentioned nuclei are measured and compared with the few existing data. The spectra of several observ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.00139v3-abstract-full').style.display = 'inline'; document.getElementById('1508.00139v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.00139v3-abstract-full" style="display: none;"> An experimental study of the $K^-_{stop}A\rightarrow 危^- p A'$ reaction on $A=^6$Li, $^7$Li, $^9$Be, $^{13}$C and $^{16}$O $p$-shell nuclei is presented. The data were collected by the FINUDA spectrometer operating at the DA$桅$NE $蠁$-factory (LNF-INFN, Italy). Emission rates for the reaction in the mentioned nuclei are measured and compared with the few existing data. The spectra of several observables are discussed; indications of Quasi-Free absorptions by a $(np)$ pair embedded in the $A$ nucleus can be obtained from the study of the missing mass distributions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.00139v3-abstract-full').style.display = 'none'; document.getElementById('1508.00139v3-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 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">Version accepted by 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 92, 045204 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1410.2714">arXiv:1410.2714</a> <span> [<a href="https://arxiv.org/pdf/1410.2714">pdf</a>, <a href="https://arxiv.org/ps/1410.2714">ps</a>, <a href="https://arxiv.org/format/1410.2714">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/10.1016/j.physletb.2014.10.024">10.1016/j.physletb.2014.10.024 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First determination of the one-proton induced Non-Mesonic Weak Decay width of p-shell 螞-Hypernuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=Erasmo%2C+G+D">G. D Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</a>, <a href="/search/nucl-ex?searchtype=author&query=Marcello%2C+S">S. Marcello</a>, <a href="/search/nucl-ex?searchtype=author&query=Nagae%2C+T">T. Nagae</a>, <a href="/search/nucl-ex?searchtype=author&query=Outa%2C+H">H. Outa</a>, <a href="/search/nucl-ex?searchtype=author&query=Paticchio%2C+V">V. Paticchio</a>, <a href="/search/nucl-ex?searchtype=author&query=Piano%2C+S">S. Piano</a>, <a href="/search/nucl-ex?searchtype=author&query=Rui%2C+R">R. Rui</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="1410.2714v1-abstract-short" style="display: inline;"> Previous studies of proton and neutron spectra from Non-Mesonic Weak Decay of eight Lambda-Hypernuclei (A = 5-16) have been revisited. New values of the ratio of the two-nucleon and the one-proton induced decay widths, Gamma_2N/Gamma_p, are obtained from single proton spectra, Gamma_2N/Gamma_p = 0.50 +/- 0.24, and from neutron and proton coincidence spectra, Gamma_2N/Gamma_p = 0.36 +/- 0.14stat +0… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.2714v1-abstract-full').style.display = 'inline'; document.getElementById('1410.2714v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1410.2714v1-abstract-full" style="display: none;"> Previous studies of proton and neutron spectra from Non-Mesonic Weak Decay of eight Lambda-Hypernuclei (A = 5-16) have been revisited. New values of the ratio of the two-nucleon and the one-proton induced decay widths, Gamma_2N/Gamma_p, are obtained from single proton spectra, Gamma_2N/Gamma_p = 0.50 +/- 0.24, and from neutron and proton coincidence spectra, Gamma_2N/Gamma_p = 0.36 +/- 0.14stat +0.05sys -0.04sys , in full agreement with previously published ones. With these values, a method is developed to extract the one-proton induced decay width in units of the free Lambda decay width, Gamma_p/Gamma_Lambda, without resorting to Intra Nuclear Cascade models but by exploiting only experimental data, under the assumption of a linear dependence on A of the Final State Interaction contribution. This is the first systematic determination ever done and it agrees within the errors with recent theoretical calculations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1410.2714v1-abstract-full').style.display = 'none'; document.getElementById('1410.2714v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">16 pages, 3 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 738 (2014) 499 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.4431">arXiv:1210.4431</a> <span> [<a href="https://arxiv.org/pdf/1210.4431">pdf</a>, <a href="https://arxiv.org/format/1210.4431">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.86.057301">10.1103/PhysRevC.86.057301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the neutron-rich hypernucleus 9螞He </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=Erasmo%2C+G+D">G. D Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</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="1210.4431v2-abstract-short" style="display: inline;"> Search for the neutron-rich hypernucleus 9LHe is reported by the FINUDA experiment at DAFNE, INFN-LNF, studying (pi+, pi-) pairs in coincidence from the K-stop + 9Be --> 9LHe + pi+ production reaction followed by 9LHe --> 9Li + pi- weak decay. An upper limit of the production rate of 9LHe undergoing this two-body pi- decay is determined to be (2.3 +/- 1.9) 10-6/K-stop at 90% confidence level. </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.4431v2-abstract-full" style="display: none;"> Search for the neutron-rich hypernucleus 9LHe is reported by the FINUDA experiment at DAFNE, INFN-LNF, studying (pi+, pi-) pairs in coincidence from the K-stop + 9Be --> 9LHe + pi+ production reaction followed by 9LHe --> 9Li + pi- weak decay. An upper limit of the production rate of 9LHe undergoing this two-body pi- decay is determined to be (2.3 +/- 1.9) 10-6/K-stop at 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.4431v2-abstract-full').style.display = 'none'; document.getElementById('1210.4431v2-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 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </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">4 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. C 86 (2012) 057301 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1203.1954">arXiv:1203.1954</a> <span> [<a href="https://arxiv.org/pdf/1203.1954">pdf</a>, <a href="https://arxiv.org/format/1203.1954">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/10.1016/j.nuclphysa.2012.02.015">10.1016/j.nuclphysa.2012.02.015 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First observation of the hyper superheavy hydrogen 6螞H </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</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="1203.1954v2-abstract-short" style="display: inline;"> Three candidate events of the neutron-rich hypernucleus 6螞H were uniquely identified in the FINUDA experiment at DA桅NE, Frascati, by observing 蟺+ mesons from the (K-stop,蟺+) production reaction on 6Li targets, in coincidence with 蟺-mesons from 6螞H \rightarrow 6He+蟺- weak decay. Details of the experiment and the analysis of its data are reported, leading to an estimate of (2.9\pm2.0)\cdot10-6/K- st… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.1954v2-abstract-full').style.display = 'inline'; document.getElementById('1203.1954v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1203.1954v2-abstract-full" style="display: none;"> Three candidate events of the neutron-rich hypernucleus 6螞H were uniquely identified in the FINUDA experiment at DA桅NE, Frascati, by observing 蟺+ mesons from the (K-stop,蟺+) production reaction on 6Li targets, in coincidence with 蟺-mesons from 6螞H \rightarrow 6He+蟺- weak decay. Details of the experiment and the analysis of its data are reported, leading to an estimate of (2.9\pm2.0)\cdot10-6/K- stop for the 6螞H production rate times the two-body 蟺- weak decay branching ratio. The 6螞H binding energy with respect to 5H + 螞 was determined jointly from production and decay to be B螞 = (4.0 \pm 1.1) MeV, assuming that 5H is unbound with respect to 3H + 2n by 1.7 MeV. The binding energy determined from production is higher, in each one of the three events, than that determined from decay, with a difference of (0.98 \pm 0.74) MeV here assigned to the 0+g.s. \rightarrow 1+ excitation. The consequences of this assignment to 螞 hypernuclear dynamics are briefly discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.1954v2-abstract-full').style.display = 'none'; document.getElementById('1203.1954v2-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 May, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 March, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2012. </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">20 pages, 8 figures, version matching published Nuclear Physics A manuscript</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Physics A 881 (2012) 269 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1112.4529">arXiv:1112.4529</a> <span> [<a href="https://arxiv.org/pdf/1112.4529">pdf</a>, <a href="https://arxiv.org/format/1112.4529">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.108.042501">10.1103/PhysRevLett.108.042501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evidence for 6螞H </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</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="1112.4529v1-abstract-short" style="display: inline;"> Evidence for the neutron-rich hypernucleus 6螞H is presented from the FINUDA experiment at DA桅NE, Frascati, studying (蟺+, 蟺-) pairs in coincidence from the K- +6Li \rightarrow 6 H+蟺+ production reaction followed by 6螞H \rightarrow 6He + 蟺- weak decay. The production rate of 6螞H undergoing this two-body 蟺- decay is determined to be (2.9\pm2.0)\cdot10-6/K-. Its binding energy, evaluated jointly from… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.4529v1-abstract-full').style.display = 'inline'; document.getElementById('1112.4529v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1112.4529v1-abstract-full" style="display: none;"> Evidence for the neutron-rich hypernucleus 6螞H is presented from the FINUDA experiment at DA桅NE, Frascati, studying (蟺+, 蟺-) pairs in coincidence from the K- +6Li \rightarrow 6 H+蟺+ production reaction followed by 6螞H \rightarrow 6He + 蟺- weak decay. The production rate of 6螞H undergoing this two-body 蟺- decay is determined to be (2.9\pm2.0)\cdot10-6/K-. Its binding energy, evaluated jointly from production and decay, is B螞(6螞H) = (4.0\pm1.1) MeV with respect to 5H+螞. A systematic difference of (0.98 \pm 0.74) MeV between B螞 values derived separately from decay and from production is tentatively assigned to the 6螞H 0+g.s. \rightarrow 1+ excitation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1112.4529v1-abstract-full').style.display = 'none'; document.getElementById('1112.4529v1-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 December, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2011. </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">5 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. 108 (2012) 042501 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1109.6594">arXiv:1109.6594</a> <span> [<a href="https://arxiv.org/pdf/1109.6594">pdf</a>, <a href="https://arxiv.org/ps/1109.6594">ps</a>, <a href="https://arxiv.org/format/1109.6594">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/10.1016/j.physletb.2011.09.076">10.1016/j.physletb.2011.09.076 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The $A(K^-_{stop},蟺^\pm危^\mp)A'$ reaction on p-shell nuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=FINUDA+Collaboration"> FINUDA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=DeMori%2C+F">F. DeMori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a> , et al. (15 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="1109.6594v1-abstract-short" style="display: inline;"> This letter is concerned with the study of the $K^-_{stop}A\rightarrow 蟺^\pm危^\mp A'$ reaction in p-shell nuclei, i.e., $^{6,7}Li$, $^9Be$, $^{13}C$ and $^{16}O$. The $蟺^\pm危^\mp / K^-_{stop}$ emission rates are reported as a function of $A$. These rates are discussed in comparison with previous findings. The ratio $蟺^-危^+/蟺^+危^-$ in p-shell nuclei is found to depart largely from that on hydrogen,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.6594v1-abstract-full').style.display = 'inline'; document.getElementById('1109.6594v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1109.6594v1-abstract-full" style="display: none;"> This letter is concerned with the study of the $K^-_{stop}A\rightarrow 蟺^\pm危^\mp A'$ reaction in p-shell nuclei, i.e., $^{6,7}Li$, $^9Be$, $^{13}C$ and $^{16}O$. The $蟺^\pm危^\mp / K^-_{stop}$ emission rates are reported as a function of $A$. These rates are discussed in comparison with previous findings. The ratio $蟺^-危^+/蟺^+危^-$ in p-shell nuclei is found to depart largely from that on hydrogen, which provides support for large in-medium effects possibly generated by the sub-threshold $螞(1405)$. The continuum momentum spectra of prompt pions and free sigmas are also discussed as well as the $蟺^\pm危^\mp$ missing mass behavior and the link with the reaction mechanism. The apparatus used for the investigation is the FINUDA spectrometer operating at the DA$桅$NE $蠁$-factory (LNF-INFN, Italy). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1109.6594v1-abstract-full').style.display = 'none'; document.getElementById('1109.6594v1-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, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2011. </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, 5 figures, accepted for publication in Phys. Lett. B</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1101.4481">arXiv:1101.4481</a> <span> [<a href="https://arxiv.org/pdf/1101.4481">pdf</a>, <a href="https://arxiv.org/ps/1101.4481">ps</a>, <a href="https://arxiv.org/format/1101.4481">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> <p class="title is-5 mathjax"> An improved determination of the two--nucleon induced non mesonic weak decay of $螞$-hypernuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+mori%2C+F">F. De mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27erasmo%2C+G">G. D'erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a>, <a href="/search/nucl-ex?searchtype=author&query=Lucherini%2C+V">V. Lucherini</a>, <a href="/search/nucl-ex?searchtype=author&query=Marcello%2C+S">S. Marcello</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="1101.4481v1-abstract-short" style="display: inline;"> The decay of $螞$-hypernuclei without pion emission, known as Non Mesonic Weak Decay (NMWD), gives an effective tool to investigate $螖$S=1 four-baryon interactions. It was theoretically suggested that the two-nucleon induced mechanism could play a substantial role in reproducing the observed NMWD decay rates and nucleon spectra, but at present no direct evidence of such a mechanism has been obtaine… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.4481v1-abstract-full').style.display = 'inline'; document.getElementById('1101.4481v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1101.4481v1-abstract-full" style="display: none;"> The decay of $螞$-hypernuclei without pion emission, known as Non Mesonic Weak Decay (NMWD), gives an effective tool to investigate $螖$S=1 four-baryon interactions. It was theoretically suggested that the two-nucleon induced mechanism could play a substantial role in reproducing the observed NMWD decay rates and nucleon spectra, but at present no direct evidence of such a mechanism has been obtained. The FINUDA experiment, exploiting the possibility to detect both charged and neutral particles coming from the hypernucleus decay, has allowed us to deduce the relative weight of the two nucleon induced decay rate to the total NMWD rate. The value of $螕_{2N}$/$螕_{NMWD}$=0.24$\pm$${0.03_{stat}}^{+0.03_{sys}}_{-{0.02_{sys}}}$ has been deduced, with an error reduced by a factor more than two compared with the previous assessment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1101.4481v1-abstract-full').style.display = 'none'; document.getElementById('1101.4481v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 January, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2011. </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, 3 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/1011.2695">arXiv:1011.2695</a> <span> [<a href="https://arxiv.org/pdf/1011.2695">pdf</a>, <a href="https://arxiv.org/format/1011.2695">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/10.1016/j.physletb.2011.02.060">10.1016/j.physletb.2011.02.060 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Hypernuclear spectroscopy with K$^-$ at rest on $^7$Li, $^9$Be, $^{13}$C and $^{16}$O </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=FINUDA+Collaboration"> FINUDA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</a> , et al. (15 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="1011.2695v2-abstract-short" style="display: inline;"> The FINUDA experiment collected data to study the production of hypernuclei on different nuclear targets. The hypernucleus formation occurred through the strangeness-exchange reaction $K^-_{stop} + \; ^AZ \rightarrow \; ^A_螞Z + 蟺^-$. From the analysis of the momentum of the emerging $蟺^-$, binding energies and formation probabilities of $^7_螞$Li, $^9_螞$Be, $^{13}_螞$C and $^{16}_螞$O have been measu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.2695v2-abstract-full').style.display = 'inline'; document.getElementById('1011.2695v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1011.2695v2-abstract-full" style="display: none;"> The FINUDA experiment collected data to study the production of hypernuclei on different nuclear targets. The hypernucleus formation occurred through the strangeness-exchange reaction $K^-_{stop} + \; ^AZ \rightarrow \; ^A_螞Z + 蟺^-$. From the analysis of the momentum of the emerging $蟺^-$, binding energies and formation probabilities of $^7_螞$Li, $^9_螞$Be, $^{13}_螞$C and $^{16}_螞$O have been measured and are here presented. The behavior of the formation probability as a function of the atomic mass number A is also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1011.2695v2-abstract-full').style.display = 'none'; document.getElementById('1011.2695v2-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 March, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 November, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2010. </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">Accepted for publication in PLB</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B698:219-225,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1010.5616">arXiv:1010.5616</a> <span> [<a href="https://arxiv.org/pdf/1010.5616">pdf</a>, <a href="https://arxiv.org/ps/1010.5616">ps</a>, <a href="https://arxiv.org/format/1010.5616">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> <p class="title is-5 mathjax"> Study of some two-body non-mesonic decays of $^4_螞$He and $^5_螞$He </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=FINUDA+Collaboration"> FINUDA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a>, <a href="/search/nucl-ex?searchtype=author&query=Grion%2C+N">N. Grion</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="1010.5616v2-abstract-short" style="display: inline;"> The Non-Mesonic (NM) decay of $^4_螞{\mathrm{He}}$ and $^5_螞{\mathrm{He}}$ in two-body channels has been studied by the FINUDA Collaboration. Two-body NM decays of hypernuclei are rare and the existing observations and theoretical calculations are scarce. The $^4_螞{\mathrm{He}}\rightarrow d+d,\; p+t$ decay channels simultaneously observed by FINUDA on several nuclei are compared: the $pt$ channel i… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.5616v2-abstract-full').style.display = 'inline'; document.getElementById('1010.5616v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1010.5616v2-abstract-full" style="display: none;"> The Non-Mesonic (NM) decay of $^4_螞{\mathrm{He}}$ and $^5_螞{\mathrm{He}}$ in two-body channels has been studied by the FINUDA Collaboration. Two-body NM decays of hypernuclei are rare and the existing observations and theoretical calculations are scarce. The $^4_螞{\mathrm{He}}\rightarrow d+d,\; p+t$ decay channels simultaneously observed by FINUDA on several nuclei are compared: the $pt$ channel is the dominant one. The decay yields for the two decay channels are assessed for the first time: they are $(1.37\pm 0.37)\times 10^{-5}/K^-_{stop}$ and $(8.3\pm 1.0)\times 10^{-5}/K^-_{stop}$, respectively. Due to the capability of FINUDA of identifying $^5_螞{\mathrm{He}}$ hypernuclei, a few $^5_螞{\mathrm{He}}\rightarrow d+t$ decay events have also been observed. The branching ratio for this decay channel has been measured for the first time: $(3.0\pm 2.3)\times 10^{-3}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1010.5616v2-abstract-full').style.display = 'none'; document.getElementById('1010.5616v2-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 April, 2011; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 October, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2010. </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">revised version, typos corrected, more figures inserted, more extended discussions in sections 3, 4. Errors in tab. 8 modified, yields + upper limits quoted. 16 pages, 8 figures, 2 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0910.4939">arXiv:0910.4939</a> <span> [<a href="https://arxiv.org/pdf/0910.4939">pdf</a>, <a href="https://arxiv.org/ps/0910.4939">ps</a>, <a href="https://arxiv.org/format/0910.4939">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/10.1016/j.physletb.2010.02.003">10.1016/j.physletb.2010.02.003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Proton spectra from Non-Mesonic Weak Decay of p-shell Lambda-Hypernuclei and evidence for the two-nucleon induced process </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Andronenkov%2C+A">A. Andronenkov</a>, <a href="/search/nucl-ex?searchtype=author&query=Beer%2C+G">G. Beer</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=DErasmo%2C+G">G. DErasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a>, <a href="/search/nucl-ex?searchtype=author&query=Gianotti%2C+P">P. Gianotti</a> , et al. (26 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="0910.4939v2-abstract-short" style="display: inline;"> New spectra from the FINUDA experiment of the Non Mesonic Weak Decay (NMWD) proton kinetic energy for 9(Lambda)Be, 11(Lambda)B, 12(Lambda)C, 13(Lambda)C, 15 (Lambda)N and 16(Lambda)O are presented and discussed along with the published data on 5(Lambda)He and 7(Lambda)Li. Exploiting the large mass number range and the low energy threshold (15 MeV) for the proton detection of FINUDA, an evaluatio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0910.4939v2-abstract-full').style.display = 'inline'; document.getElementById('0910.4939v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0910.4939v2-abstract-full" style="display: none;"> New spectra from the FINUDA experiment of the Non Mesonic Weak Decay (NMWD) proton kinetic energy for 9(Lambda)Be, 11(Lambda)B, 12(Lambda)C, 13(Lambda)C, 15 (Lambda)N and 16(Lambda)O are presented and discussed along with the published data on 5(Lambda)He and 7(Lambda)Li. Exploiting the large mass number range and the low energy threshold (15 MeV) for the proton detection of FINUDA, an evaluation of both Final State Interactions (FSI) and the two nucleon induced NMWD contributions to the decay process has been done. Based on this evaluation, a linear dependence of FSI on the hypernuclear mass number A is found and for the two nucleon stimulated decay rate the experimental value of Gamma2/Gammap=0.43+-0.25 is determined for the first time. A value for the two nucleon stimulated decay rate to the total decay rate Gamma2/GammaNMWD=0.24+-0.10 is also extracted. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0910.4939v2-abstract-full').style.display = 'none'; document.getElementById('0910.4939v2-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> 12 February, 2010; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 October, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2009. </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 and 2 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B685:247-252,2010 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/0905.0623">arXiv:0905.0623</a> <span> [<a href="https://arxiv.org/pdf/0905.0623">pdf</a>, <a href="https://arxiv.org/ps/0905.0623">ps</a>, <a href="https://arxiv.org/format/0905.0623">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/10.1016/j.physletb.2009.09.061">10.1016/j.physletb.2009.09.061 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New results on Mesonic Weak Decay of $p$-shell $螞$-Hypernuclei </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=The+FINUDA+Collaboration"> The FINUDA Collaboration</a>, <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Andronenkov%2C+A">A. Andronenkov</a>, <a href="/search/nucl-ex?searchtype=author&query=Beer%2C+G">G. Beer</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Fiore%2C+E+M">E. M. Fiore</a>, <a href="/search/nucl-ex?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/nucl-ex?searchtype=author&query=Fujioka%2C+H">H. Fujioka</a>, <a href="/search/nucl-ex?searchtype=author&query=Genova%2C+P">P. Genova</a> , et al. (29 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="0905.0623v2-abstract-short" style="display: inline;"> The FINUDA experiment performed a systematic study of the charged mesonic weak decay channel of $p$-shell $螞$-hypernuclei. Negatively charged pion spectra from mesonic decay were measured with magnetic analysis for the first time for ${^{7}_螞Li}$, ${^{9}_螞Be}$, ${^{11}_螞B}$ and ${^{15}_螞N}$. The shape of the $蟺^{-}$ spectra was interpreted through a comparison with pion distorted wave calculatio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0905.0623v2-abstract-full').style.display = 'inline'; document.getElementById('0905.0623v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0905.0623v2-abstract-full" style="display: none;"> The FINUDA experiment performed a systematic study of the charged mesonic weak decay channel of $p$-shell $螞$-hypernuclei. Negatively charged pion spectra from mesonic decay were measured with magnetic analysis for the first time for ${^{7}_螞Li}$, ${^{9}_螞Be}$, ${^{11}_螞B}$ and ${^{15}_螞N}$. The shape of the $蟺^{-}$ spectra was interpreted through a comparison with pion distorted wave calculations that take into account the structure of both hypernucleus and daughter nucleus. Branching ratios $螕_{蟺^{-}}/螕_{tot}$ were derived from the measured spectra and converted to $蟺^{-}$ decay rates $螕_{蟺^{-}}$ by means of known or extrapolated total decay widths $螕_{tot}$ of $p$-shell $螞$-hypernuclei. Based on these measurements, the spin-parity assignment $1/2^+$ for ${^{7}_螞Li}$ and $5/2^+$ for ${^{11}_螞B}$ ground-state are confirmed and a spin-parity $3/2^+$ for ${^{15}_螞N}$ ground-state is assigned for the first time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0905.0623v2-abstract-full').style.display = 'none'; document.getElementById('0905.0623v2-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> 25 September, 2009; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2009; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2009. </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, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys.Lett.B681:139-146,2009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0607019">arXiv:nucl-ex/0607019</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0607019">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0607019">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0607019">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/10.1016/j.physletb.2006.07.051">10.1016/j.physletb.2006.07.051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Production of $^{6}_螞$H and $^{7}_螞$H with the (K$^{-}_{stop}$,$蟺^+$) reaction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Beer%2C+G">G. Beer</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+S">S. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerello%2C+P">P. Cerello</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Di+Santo%2C+D">D. Di Santo</a>, <a href="/search/nucl-ex?searchtype=author&query=Elia%2C+D">D. Elia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Faso%2C+D">D. Faso</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippini%2C+V">V. Filippini</a> , et al. (31 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="nucl-ex/0607019v1-abstract-short" style="display: inline;"> The production of neutron rich $螞$-hypernuclei via the ($K^-_stop$,$蟺^+$) reaction has been studied using data collected with the FINUDA spectrometer at the DA$桅$NE $蠁$-factory (LNF). The analysis of the inclusive $蟺^+$ momentum spectra is presented and an upper limit for the production of $^6_螞$H and $^7_螞$H from $^6$Li and $^7$Li, is assessed for the first time. </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0607019v1-abstract-full" style="display: none;"> The production of neutron rich $螞$-hypernuclei via the ($K^-_stop$,$蟺^+$) reaction has been studied using data collected with the FINUDA spectrometer at the DA$桅$NE $蠁$-factory (LNF). The analysis of the inclusive $蟺^+$ momentum spectra is presented and an upper limit for the production of $^6_螞$H and $^7_螞$H from $^6$Li and $^7$Li, is assessed for the first time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0607019v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0607019v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2006. </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, 3 figures. Accepted for publication in PLB</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0606021">arXiv:nucl-ex/0606021</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0606021">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0606021">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0606021">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> <p class="title is-5 mathjax"> A study of the proton spectra following the capture of $K^-$ in $^6$Li and $^{12}$C with FINUDA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Agnello%2C+M">M. Agnello</a>, <a href="/search/nucl-ex?searchtype=author&query=Beer%2C+G">G. Beer</a>, <a href="/search/nucl-ex?searchtype=author&query=Benussi%2C+L">L. Benussi</a>, <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bhang%2C+H+C">H. C. Bhang</a>, <a href="/search/nucl-ex?searchtype=author&query=Bianco%2C+S">S. Bianco</a>, <a href="/search/nucl-ex?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/nucl-ex?searchtype=author&query=Botta%2C+E">E. Botta</a>, <a href="/search/nucl-ex?searchtype=author&query=Bregant%2C+M">M. Bregant</a>, <a href="/search/nucl-ex?searchtype=author&query=Bressani%2C+T">T. Bressani</a>, <a href="/search/nucl-ex?searchtype=author&query=Bufalino%2C+S">S. Bufalino</a>, <a href="/search/nucl-ex?searchtype=author&query=Busso%2C+L">L. Busso</a>, <a href="/search/nucl-ex?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/nucl-ex?searchtype=author&query=Camerini%2C+P">P. Camerini</a>, <a href="/search/nucl-ex?searchtype=author&query=Cerello%2C+P">P. Cerello</a>, <a href="/search/nucl-ex?searchtype=author&query=Dalena%2C+B">B. Dalena</a>, <a href="/search/nucl-ex?searchtype=author&query=De+Mori%2C+F">F. De Mori</a>, <a href="/search/nucl-ex?searchtype=author&query=D%27Erasmo%2C+G">G. D'Erasmo</a>, <a href="/search/nucl-ex?searchtype=author&query=Di+Santo%2C+D">D. Di Santo</a>, <a href="/search/nucl-ex?searchtype=author&query=Elia%2C+D">D. Elia</a>, <a href="/search/nucl-ex?searchtype=author&query=Fabbri%2C+F+L">F. L. Fabbri</a>, <a href="/search/nucl-ex?searchtype=author&query=Faso%2C+D">D. Faso</a>, <a href="/search/nucl-ex?searchtype=author&query=Feliciello%2C+A">A. Feliciello</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippi%2C+A">A. Filippi</a>, <a href="/search/nucl-ex?searchtype=author&query=Filippini%2C+V">V. Filippini</a> , et al. (33 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="nucl-ex/0606021v1-abstract-short" style="display: inline;"> Momenta spectra of protons emitted following the capture of $K^-$ in $^6$Li and $^{12}$C have been measured with 1% resolution. The $^{12}$C spectrum is smooth whereas for $^6$Li a well defined peak appears at about 500 MeV/$c$. The first observation of a structure in this region was identified as a strange tribaryon or, possibly, a $\bar K$-nuclear state. The peak is correlated with a $蟺^-$ com… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0606021v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0606021v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0606021v1-abstract-full" style="display: none;"> Momenta spectra of protons emitted following the capture of $K^-$ in $^6$Li and $^{12}$C have been measured with 1% resolution. The $^{12}$C spectrum is smooth whereas for $^6$Li a well defined peak appears at about 500 MeV/$c$. The first observation of a structure in this region was identified as a strange tribaryon or, possibly, a $\bar K$-nuclear state. The peak is correlated with a $蟺^-$ coming from $危^-$ decay in flight, selected by setting momenta larger than 275 MeV/$c$. The $危^-$ could be produced, together with a 500 MeV/$c$ proton, by the capture of a $K^-$ in a deuteron-cluster substructure of the $^6$Li nucleus. The capture rate for such a reaction is $(1.62\pm 0.23_{stat} ^{+0.71}_{-0.44}(sys))%/K^-_{stop}$, in agreement with the existing observations on $^4$He targets and with the hypothesis that the $^6$Li nucleus can be interpreted as a $(d+伪)$ cluster. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0606021v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0606021v1-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 June, 2006; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2006. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">21 pages, 10 figures. Accepted for publication in NPA</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/nucl-ex/0111016">arXiv:nucl-ex/0111016</a> <span> [<a href="https://arxiv.org/pdf/nucl-ex/0111016">pdf</a>, <a href="https://arxiv.org/ps/nucl-ex/0111016">ps</a>, <a href="https://arxiv.org/format/nucl-ex/0111016">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> <p class="title is-5 mathjax"> The Finuda Experiment: Status and Perspectives </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/nucl-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</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="nucl-ex/0111016v1-abstract-short" style="display: inline;"> FINUDA is a hypernuclear physics experiment that will be carried out at DA$桅$NE, the $e^+e^-$ $蠁$-factory currently in operation at the INFN Frascati Laboratory. The apparatus, which is assembled in the DA$桅$NE hall, consists of a magnetic spectrometer with high resolution tracking capabilities. In this paper the status of the experiment is presented, together with the main features of the appar… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0111016v1-abstract-full').style.display = 'inline'; document.getElementById('nucl-ex/0111016v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="nucl-ex/0111016v1-abstract-full" style="display: none;"> FINUDA is a hypernuclear physics experiment that will be carried out at DA$桅$NE, the $e^+e^-$ $蠁$-factory currently in operation at the INFN Frascati Laboratory. The apparatus, which is assembled in the DA$桅$NE hall, consists of a magnetic spectrometer with high resolution tracking capabilities. In this paper the status of the experiment is presented, together with the main features of the apparatus and of its physics program. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('nucl-ex/0111016v1-abstract-full').style.display = 'none'; document.getElementById('nucl-ex/0111016v1-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 November, 2001; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2001. </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">7 pages, contributed paper to 9th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon 26-31 July, 2001 Washington, DC, USA</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FRASCATI-LNF/01-026(P) </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PiNNewslett.16:415-418,2002 </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 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