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class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.12473">arXiv:2409.12473</a> <span> [<a href="https://arxiv.org/pdf/2409.12473">pdf</a>, <a href="https://arxiv.org/format/2409.12473">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Efficient transmutation of long-lived fission products in a Gamma Factory beam driven advanced nuclear energy system </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Baolong%2C+H">Hu Baolong</a>, <a href="/search/hep-ex?searchtype=author&query=Krasny%2C+M+W">Mieczyslaw Witold Krasny</a>, <a href="/search/hep-ex?searchtype=author&query=Placzek%2C+W">Wieslaw Placzek</a>, <a href="/search/hep-ex?searchtype=author&query=Yuan%2C+Y">Yun Yuan</a>, <a href="/search/hep-ex?searchtype=author&query=Shi%2C+X">Xiaoming Shi</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+K">Kaijun Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wen Luo</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="2409.12473v1-abstract-short" style="display: inline;"> The Gamma Factory (GF) project aims to generate high-intensity $纬$-ray beams of tunable energy and relatively small energy spread. Such beams can be optimized to generate an intense photo-neutron source, capable of driving an advanced nuclear energy system (ANES) for nuclear waste transmutation and supplying electrical power that is necessary for the GF operation mode of the Large Hadron Collider… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12473v1-abstract-full').style.display = 'inline'; document.getElementById('2409.12473v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.12473v1-abstract-full" style="display: none;"> The Gamma Factory (GF) project aims to generate high-intensity $纬$-ray beams of tunable energy and relatively small energy spread. Such beams can be optimized to generate an intense photo-neutron source, capable of driving an advanced nuclear energy system (ANES) for nuclear waste transmutation and supplying electrical power that is necessary for the GF operation mode of the Large Hadron Collider storage ring. In this study, we investigate the feasibility of driving ANES with the GF beam which is optimized to maximize the neutron production rate. The dependence of the ANES thermal power on the distance between the positions of the ANES and the GF $纬$-ray source is evaluated. For the $纬$-ray beam reaching the intensity of $\sim$$10^{19}$ photons per second, the ANES thermal power could exceed $500\,$MWt. Under the assumption that ANES operates over $20$ years, the transmutation rate could reach $30\%$ for five typical long-lived fission products (LLFPs): $^{79}$Se, $^{99}$Tc, $^{107}$Pd, $^{129}$I, $^{137}$Cs. Our comparative studies show that although the neutron production efficiency of the GF $纬$-ray beam (per MW of the beam power) is approximately $14$ times lower than that of the $500\,$MeV proton beam, the overall net ANES power production efficiency for the GF beam driver scheme could be comparable to that of the proton beam driver scheme, while providing additional transmutation capacity, not available for the proton beam driven scheme. It is suggested that the GF-based ANES could provide a viable solution for the efficient transmutation of LLFPs without isotopic separation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.12473v1-abstract-full').style.display = 'none'; document.getElementById('2409.12473v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 10 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/2409.04169">arXiv:2409.04169</a> <span> [<a href="https://arxiv.org/pdf/2409.04169">pdf</a>, <a href="https://arxiv.org/format/2409.04169">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Study of Cosmogenic Neutron Production for $\sim$360 GeV Muons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+X">Xinshun Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Fu%2C+H">Haoyang Fu</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Sun%2C+H">Haozhe Sun</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Y">Yuyi Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wei%2C+C">Changxu Wei</a>, <a href="/search/hep-ex?searchtype=author&query=Weng%2C+J">Jun Weng</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+Y">Yiyang Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+C">Chuang Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+A">Aiqiang Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+B">Bin Zhang</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="2409.04169v1-abstract-short" style="display: inline;"> The China Jinping underground Laboratory (CJPL) is an excellent location for studying solar, terrestrial, and supernova neutrinos due to its 2400-meter vertical rock overburden. Its unparalleled depth gives an opportunity to investigate the cosmic-ray muons with exceptionally high average energy at $\sim360$ GeV. This paper details a study of muon-related backgrounds based on 1178 days of data col… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.04169v1-abstract-full').style.display = 'inline'; document.getElementById('2409.04169v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.04169v1-abstract-full" style="display: none;"> The China Jinping underground Laboratory (CJPL) is an excellent location for studying solar, terrestrial, and supernova neutrinos due to its 2400-meter vertical rock overburden. Its unparalleled depth gives an opportunity to investigate the cosmic-ray muons with exceptionally high average energy at $\sim360$ GeV. This paper details a study of muon-related backgrounds based on 1178 days of data collected by the 1-ton prototype neutrino detector used for the Jinping Neutrino Experiment (JNE) since 2017. The apparent effects of detectors' finite size on the measured result are first discussed in detail. The analysis of 493 cosmic-ray muon candidates and $13.6\pm5.7$ cosmogenic neutron candidates, along with a thorough evaluation of detection efficiency and uncertainties, gives a muon flux of $(3.56\pm0.16_{\mathrm{stat.}}\pm0.10_{\mathrm{syst.}})\times10^{-10}~\mathrm{cm}^{-2}\mathrm{s^{-1}}$ and a cosmogenic neutron yield of $(3.37\pm 1.41_{\mathrm{stat.}}\pm 0.31_{\mathrm{sys.}}) \times 10^{-4}~\mathrm渭^{-1} \mathrm{g}^{-1} \mathrm{cm}^{2}$ in LAB-based liquid scintillator. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.04169v1-abstract-full').style.display = 'none'; document.getElementById('2409.04169v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.00136">arXiv:2407.00136</a> <span> [<a href="https://arxiv.org/pdf/2407.00136">pdf</a>, <a href="https://arxiv.org/format/2407.00136">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Observation of the Electromagnetic Dalitz Transition $h_c \rightarrow e^+e^-畏_c$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (495 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.00136v2-abstract-short" style="display: inline;"> Using $(27.12\pm 0.14)\times10^8$ $蠄(3686)$ decays and data samples of $e^+e^-$ collisions with $\sqrt{s}$ from 4.130 to 4.780~GeV collected with the BESIII detector, we report the first observation of the electromagnetic Dalitz transition $h_c\to e^+e^-畏_c$ with a statistical significance of $5.4蟽$. We measure the ratio of the branching fractions… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.00136v2-abstract-full').style.display = 'inline'; document.getElementById('2407.00136v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.00136v2-abstract-full" style="display: none;"> Using $(27.12\pm 0.14)\times10^8$ $蠄(3686)$ decays and data samples of $e^+e^-$ collisions with $\sqrt{s}$ from 4.130 to 4.780~GeV collected with the BESIII detector, we report the first observation of the electromagnetic Dalitz transition $h_c\to e^+e^-畏_c$ with a statistical significance of $5.4蟽$. We measure the ratio of the branching fractions $\frac{\mathcal{B}(h_c\rightarrow e^+e^-畏_c)}{\mathcal{B}(h_c\rightarrow 纬畏_c)}$ separately for the $h_c$ samples produced via $蠄(3686)\to蟺^0h_c$ and $e^+e^-\to蟺^+蟺^-h_c$. The average ratio is determined to be $(0.59\pm0.10(\text{stat.})\pm0.04(\text{syst.}))\%$, where the uncertainty includes both statistical and systematic components. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.00136v2-abstract-full').style.display = 'none'; document.getElementById('2407.00136v2-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 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.18720">arXiv:2405.18720</a> <span> [<a href="https://arxiv.org/pdf/2405.18720">pdf</a>, <a href="https://arxiv.org/format/2405.18720">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Machine-Learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Jiang%2C+W">Wei Jiang</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+G">Guihong Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Z">Zhen Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wuming Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Wen%2C+L">Liangjian Wen</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+J">Jianyi Luo</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="2405.18720v1-abstract-short" style="display: inline;"> Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurement of the position and energy of incident particles in liquid scintillator (LS) detectors. A key factor contributing to the energy resolution in large liquid scintillator detectors with PMTs is the charge smearing of PMTs. This paper presents a mac… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.18720v1-abstract-full').style.display = 'inline'; document.getElementById('2405.18720v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.18720v1-abstract-full" style="display: none;"> Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurement of the position and energy of incident particles in liquid scintillator (LS) detectors. A key factor contributing to the energy resolution in large liquid scintillator detectors with PMTs is the charge smearing of PMTs. This paper presents a machine-learning-based photon counting method for PMT waveforms and its application to the energy reconstruction, using the JUNO experiment as an example. The results indicate that leveraging the photon counting information from the machine learning model can partially mitigate the impact of PMT charge smearing and lead to a relative 2.0% to 2.8% improvement on the energy resolution at different energies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.18720v1-abstract-full').style.display = 'none'; document.getElementById('2405.18720v1-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 9 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/2405.17792">arXiv:2405.17792</a> <span> [<a href="https://arxiv.org/pdf/2405.17792">pdf</a>, <a href="https://arxiv.org/format/2405.17792">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> </div> </div> <p class="title is-5 mathjax"> JUNO Sensitivity to Invisible Decay Modes of Neutrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Adamowicz%2C+K">Kai Adamowicz</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Beretta%2C+M">Marco Beretta</a>, <a href="/search/hep-ex?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/hep-ex?searchtype=author&query=Bick%2C+D">Daniel Bick</a> , et al. (635 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.17792v1-abstract-short" style="display: inline;"> We explore the bound neutrons decay into invisible particles (e.g., $n\rightarrow 3 谓$ or $nn \rightarrow 2 谓$) in the JUNO liquid scintillator detector. The invisible decay includes two decay modes: $ n \rightarrow { inv} $ and $ nn \rightarrow { inv} $. The invisible decays of $s$-shell neutrons in $^{12}{\rm C}$ will leave a highly excited residual nucleus. Subsequently, some de-excitation mode… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17792v1-abstract-full').style.display = 'inline'; document.getElementById('2405.17792v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.17792v1-abstract-full" style="display: none;"> We explore the bound neutrons decay into invisible particles (e.g., $n\rightarrow 3 谓$ or $nn \rightarrow 2 谓$) in the JUNO liquid scintillator detector. The invisible decay includes two decay modes: $ n \rightarrow { inv} $ and $ nn \rightarrow { inv} $. The invisible decays of $s$-shell neutrons in $^{12}{\rm C}$ will leave a highly excited residual nucleus. Subsequently, some de-excitation modes of the excited residual nuclei can produce a time- and space-correlated triple coincidence signal in the JUNO detector. Based on a full Monte Carlo simulation informed with the latest available data, we estimate all backgrounds, including inverse beta decay events of the reactor antineutrino $\bar谓_e$, natural radioactivity, cosmogenic isotopes and neutral current interactions of atmospheric neutrinos. Pulse shape discrimination and multivariate analysis techniques are employed to further suppress backgrounds. With two years of exposure, JUNO is expected to give an order of magnitude improvement compared to the current best limits. After 10 years of data taking, the JUNO expected sensitivities at a 90% confidence level are $蟿/B( n \rightarrow { inv} ) > 5.0 \times 10^{31} \, {\rm yr}$ and $蟿/B( nn \rightarrow { inv} ) > 1.4 \times 10^{32} \, {\rm yr}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17792v1-abstract-full').style.display = 'none'; document.getElementById('2405.17792v1-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 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 7 figures, 4 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/2310.06281">arXiv:2310.06281</a> <span> [<a href="https://arxiv.org/pdf/2310.06281">pdf</a>, <a href="https://arxiv.org/format/2310.06281">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> First attempt of directionality reconstruction for atmospheric neutrinos in a large homogeneous liquid scintillator detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Z">Zekun Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+J">Jiaxi Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Duyang%2C+H">Hongyue Duyang</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+W">Wanlei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=He%2C+X">Xinhai He</a>, <a href="/search/hep-ex?searchtype=author&query=Hu%2C+Y">Yuxiang Hu</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+T">Teng Li</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Z">Zhen Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wuming Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+X">Xiaojie Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Ma%2C+W+Y">Wing Yan Ma</a>, <a href="/search/hep-ex?searchtype=author&query=Tan%2C+X">Xiaohan Tan</a>, <a href="/search/hep-ex?searchtype=author&query=Zeng%2C+F">Fanrui Zeng</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+Y">Yongpeng Zhang</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="2310.06281v1-abstract-short" style="display: inline;"> The directionality information of incoming neutrinos is essential to atmospheric neutrino oscillation analysis since it is directly related to the oscillation baseline length. Large homogeneous liquid scintillator detectors, while offering excellent energy resolution, are traditionally very limited in their capabilities of measuring event directionality. In this paper, we present a novel direction… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.06281v1-abstract-full').style.display = 'inline'; document.getElementById('2310.06281v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.06281v1-abstract-full" style="display: none;"> The directionality information of incoming neutrinos is essential to atmospheric neutrino oscillation analysis since it is directly related to the oscillation baseline length. Large homogeneous liquid scintillator detectors, while offering excellent energy resolution, are traditionally very limited in their capabilities of measuring event directionality. In this paper, we present a novel directionality reconstruction method for atmospheric neutrino events in large homogeneous liquid scintillator detectors based on waveform analysis and machine learning techniques. We demonstrate for the first time that such detectors can achieve good direction resolution and potentially play an important role in future atmospheric neutrino oscillation measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.06281v1-abstract-full').style.display = 'none'; document.getElementById('2310.06281v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Prepared for submission to PRD</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2309.07109">arXiv:2309.07109</a> <span> [<a href="https://arxiv.org/pdf/2309.07109">pdf</a>, <a href="https://arxiv.org/ps/2309.07109">ps</a>, <a href="https://arxiv.org/format/2309.07109">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 Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Real-time Monitoring for the Next Core-Collapse Supernova in JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Beretta%2C+M">Marco Beretta</a>, <a href="/search/hep-ex?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a> , et al. (606 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="2309.07109v2-abstract-short" style="display: inline;"> The core-collapse supernova (CCSN) is considered one of the most energetic astrophysical events in the universe. The early and prompt detection of neutrinos before (pre-SN) and during the supernova (SN) burst presents a unique opportunity for multi-messenger observations of CCSN events. In this study, we describe the monitoring concept and present the sensitivity of the system to pre-SN and SN neu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.07109v2-abstract-full').style.display = 'inline'; document.getElementById('2309.07109v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.07109v2-abstract-full" style="display: none;"> The core-collapse supernova (CCSN) is considered one of the most energetic astrophysical events in the universe. The early and prompt detection of neutrinos before (pre-SN) and during the supernova (SN) burst presents a unique opportunity for multi-messenger observations of CCSN events. In this study, we describe the monitoring concept and present the sensitivity of the system to pre-SN and SN neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO), a 20 kton liquid scintillator detector currently under construction in South China. The real-time monitoring system is designed to ensure both prompt alert speed and comprehensive coverage of progenitor stars. It incorporates prompt monitors on the electronic board as well as online monitors at the data acquisition stage. Assuming a false alert rate of 1 per year, this monitoring system exhibits sensitivity to pre-SN neutrinos up to a distance of approximately 1.6 (0.9) kiloparsecs and SN neutrinos up to about 370 (360) kiloparsecs for a progenitor mass of 30 solar masses, considering both normal and inverted mass ordering scenarios. The pointing ability of the CCSN is evaluated by analyzing the accumulated event anisotropy of inverse beta decay interactions from pre-SN or SN neutrinos. This, along with the early alert, can play a crucial role in facilitating follow-up multi-messenger observations of the next galactic or nearby extragalactic CCSN. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.07109v2-abstract-full').style.display = 'none'; document.getElementById('2309.07109v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">24 pages, 9 figures, accepted for the publication at JCAP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2306.09567">arXiv:2306.09567</a> <span> [<a href="https://arxiv.org/pdf/2306.09567">pdf</a>, <a href="https://arxiv.org/format/2306.09567">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 Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2023/09/001">10.1088/1475-7516/2023/09/001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a> , et al. (581 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="2306.09567v3-abstract-short" style="display: inline;"> We discuss JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo via detecting inverse beta decay reactions of electron anti-neutrinos resulting from the annihilation. We study possible backgrounds to the signature, including the reactor neutrinos, diffuse supernova neutrino background, charged- and neutral-current interactions of atmospheric neutrinos, backgrounds from muon… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.09567v3-abstract-full').style.display = 'inline'; document.getElementById('2306.09567v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.09567v3-abstract-full" style="display: none;"> We discuss JUNO sensitivity to the annihilation of MeV dark matter in the galactic halo via detecting inverse beta decay reactions of electron anti-neutrinos resulting from the annihilation. We study possible backgrounds to the signature, including the reactor neutrinos, diffuse supernova neutrino background, charged- and neutral-current interactions of atmospheric neutrinos, backgrounds from muon-induced fast neutrons and cosmogenic isotopes. A fiducial volume cut, as well as the pulse shape discrimination and the muon veto are applied to suppress the above backgrounds. It is shown that JUNO sensitivity to the thermally averaged dark matter annihilation rate in 10 years of exposure would be significantly better than the present-day best limit set by Super-Kamiokande and would be comparable to that expected by Hyper-Kamiokande. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.09567v3-abstract-full').style.display = 'none'; document.getElementById('2306.09567v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">25 pages, 9 figures, matches the publised version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP 09 (2023) 001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.05172">arXiv:2303.05172</a> <span> [<a href="https://arxiv.org/pdf/2303.05172">pdf</a>, <a href="https://arxiv.org/format/2303.05172">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="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168680">10.1016/j.nima.2023.168680 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The JUNO experiment Top Tracker </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a> , et al. (592 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="2303.05172v1-abstract-short" style="display: inline;"> The main task of the Top Tracker detector of the neutrino reactor experiment Jiangmen Underground Neutrino Observatory (JUNO) is to reconstruct and extrapolate atmospheric muon tracks down to the central detector. This muon tracker will help to evaluate the contribution of the cosmogenic background to the signal. The Top Tracker is located above JUNO's water Cherenkov Detector and Central Detector… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.05172v1-abstract-full').style.display = 'inline'; document.getElementById('2303.05172v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.05172v1-abstract-full" style="display: none;"> The main task of the Top Tracker detector of the neutrino reactor experiment Jiangmen Underground Neutrino Observatory (JUNO) is to reconstruct and extrapolate atmospheric muon tracks down to the central detector. This muon tracker will help to evaluate the contribution of the cosmogenic background to the signal. The Top Tracker is located above JUNO's water Cherenkov Detector and Central Detector, covering about 60% of the surface above them. The JUNO Top Tracker is constituted by the decommissioned OPERA experiment Target Tracker modules. The technology used consists in walls of two planes of plastic scintillator strips, one per transverse direction. Wavelength shifting fibres collect the light signal emitted by the scintillator strips and guide it to both ends where it is read by multianode photomultiplier tubes. Compared to the OPERA Target Tracker, the JUNO Top Tracker uses new electronics able to cope with the high rate produced by the high rock radioactivity compared to the one in Gran Sasso underground laboratory. This paper will present the new electronics and mechanical structure developed for the Top Tracker of JUNO along with its expected performance based on the current detector simulation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.05172v1-abstract-full').style.display = 'none'; document.getElementById('2303.05172v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">20 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth.A 1057 (2023) 168680 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.03910">arXiv:2303.03910</a> <span> [<a href="https://arxiv.org/pdf/2303.03910">pdf</a>, <a href="https://arxiv.org/format/2303.03910">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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> JUNO sensitivity to $^7$Be, $pep$, and CNO solar neutrinos </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Beretta%2C+M">Marco Beretta</a> , et al. (592 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="2303.03910v1-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO), the first multi-kton liquid scintillator detector, which is under construction in China, will have a unique potential to perform a real-time measurement of solar neutrinos well below the few MeV threshold typical for Water Cherenkov detectors. JUNO's large target mass and excellent energy resolution are prerequisites for reaching unprecedented… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.03910v1-abstract-full').style.display = 'inline'; document.getElementById('2303.03910v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.03910v1-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO), the first multi-kton liquid scintillator detector, which is under construction in China, will have a unique potential to perform a real-time measurement of solar neutrinos well below the few MeV threshold typical for Water Cherenkov detectors. JUNO's large target mass and excellent energy resolution are prerequisites for reaching unprecedented levels of precision. In this paper, we provide estimation of the JUNO sensitivity to 7Be, pep, and CNO solar neutrinos that can be obtained via a spectral analysis above the 0.45 MeV threshold. This study is performed assuming different scenarios of the liquid scintillator radiopurity, ranging from the most opti mistic one corresponding to the radiopurity levels obtained by the Borexino experiment, up to the minimum requirements needed to perform the neutrino mass ordering determination with reactor antineutrinos - the main goal of JUNO. Our study shows that in most scenarios, JUNO will be able to improve the current best measurements on 7Be, pep, and CNO solar neutrino fluxes. We also perform a study on the JUNO capability to detect periodical time variations in the solar neutrino flux, such as the day-night modulation induced by neutrino flavor regeneration in Earth, and the modulations induced by temperature changes driven by helioseismic waves. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.03910v1-abstract-full').style.display = 'none'; document.getElementById('2303.03910v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.13158">arXiv:2212.13158</a> <span> [<a href="https://arxiv.org/pdf/2212.13158">pdf</a>, <a href="https://arxiv.org/format/2212.13158">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="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168400">10.1016/j.nima.2023.168400 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of the 1-ton Prototype Neutrino Detector at CJPL-I </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Wu%2C+Y">Yiyang Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+L">Lin Zhao</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+A">Aiqiang Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+B">Bin Zhang</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="2212.13158v2-abstract-short" style="display: inline;"> China Jinping Underground Laboratory provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator, we tested its experimental hardware, performed the detector calibration and simulation, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We inves… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.13158v2-abstract-full').style.display = 'inline'; document.getElementById('2212.13158v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.13158v2-abstract-full" style="display: none;"> China Jinping Underground Laboratory provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator, we tested its experimental hardware, performed the detector calibration and simulation, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We investigated the radon background and implemented the nitrogen sealing technology to control it. This paper presents the details of these studies and will serve as a key reference for the construction and optimization of the future large detector of JNE. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.13158v2-abstract-full').style.display = 'none'; document.getElementById('2212.13158v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.08502">arXiv:2212.08502</a> <span> [<a href="https://arxiv.org/pdf/2212.08502">pdf</a>, <a href="https://arxiv.org/format/2212.08502">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/ace9c6">10.1088/1674-1137/ace9c6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> JUNO Sensitivity on Proton Decay $p\to \bar谓K^+$ Searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/hep-ex?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</a>, <a href="/search/hep-ex?searchtype=author&query=Blin%2C+S">Sylvie Blin</a> , et al. (586 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="2212.08502v3-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar谓K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreov… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.08502v3-abstract-full').style.display = 'inline'; document.getElementById('2212.08502v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.08502v3-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar谓K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar谓K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.08502v3-abstract-full').style.display = 'none'; document.getElementById('2212.08502v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 12 figures, an author added</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.16768">arXiv:2211.16768</a> <span> [<a href="https://arxiv.org/pdf/2211.16768">pdf</a>, <a href="https://arxiv.org/format/2211.16768">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Data-driven simultaneous vertex and energy reconstruction for large liquid scintillator detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Huang%2C+G">Gui-hong Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Jiang%2C+W">Wei Jiang</a>, <a href="/search/hep-ex?searchtype=author&query=Wen%2C+L">Liang-jian Wen</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Y">Yi-fang Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wu-Ming Luo</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="2211.16768v1-abstract-short" style="display: inline;"> High precision vertex and energy reconstruction is crucial for large liquid scintillator detectors such as JUNO, especially for the determination of the neutrino mass ordering by analyzing the energy spectrum of reactor neutrinos. This paper presents a data-driven method to obtain more realistic and more accurate expected PMT response of positron events in JUNO, and develops a simultaneous vertex… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.16768v1-abstract-full').style.display = 'inline'; document.getElementById('2211.16768v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.16768v1-abstract-full" style="display: none;"> High precision vertex and energy reconstruction is crucial for large liquid scintillator detectors such as JUNO, especially for the determination of the neutrino mass ordering by analyzing the energy spectrum of reactor neutrinos. This paper presents a data-driven method to obtain more realistic and more accurate expected PMT response of positron events in JUNO, and develops a simultaneous vertex and energy reconstruction method that combines the charge and time information of PMTs. For the JUNO detector, the impact of vertex inaccuracy on the energy resolution is about 0.6\%. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.16768v1-abstract-full').style.display = 'none'; document.getElementById('2211.16768v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.02467">arXiv:2211.02467</a> <span> [<a href="https://arxiv.org/pdf/2211.02467">pdf</a>, <a href="https://arxiv.org/format/2211.02467">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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Determine Energy Nonlinearity and Resolution of $e^{\pm}$ and $纬$ in Liquid Scintillator Detectors by A Universal Energy Response Model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Yu%2C+M">Miao Yu</a>, <a href="/search/hep-ex?searchtype=author&query=Wen%2C+L">Liangjian Wen</a>, <a href="/search/hep-ex?searchtype=author&query=Zhou%2C+X">Xiang Zhou</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wuming Luo</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="2211.02467v2-abstract-short" style="display: inline;"> Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic $纬$-ray sources and the continuous $尾$ spectra of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.02467v2-abstract-full').style.display = 'inline'; document.getElementById('2211.02467v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.02467v2-abstract-full" style="display: none;"> Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic $纬$-ray sources and the continuous $尾$ spectra of $^\mathrm{12}\mathrm{B}$ and Michel $e^-$ induced by cosmic muons. Monte Carlo studies have demonstrated the effectiveness and robustness of the proposed model, in particular, the positron energy resolution can be extracted in the absence of positron sources. This work will provide a feasible approach of simultaneous calibration of energy nonlinearity and resolution for the running and future LS detectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.02467v2-abstract-full').style.display = 'none'; document.getElementById('2211.02467v2-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 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.08437">arXiv:2210.08437</a> <span> [<a href="https://arxiv.org/pdf/2210.08437">pdf</a>, <a href="https://arxiv.org/format/2210.08437">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="Solar and Stellar Astrophysics">astro-ph.SR</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/10.3847/1538-4357/ad2bfd">10.3847/1538-4357/ad2bfd <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Model Independent Approach of the JUNO $^8$B Solar Neutrino Program </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+J">Jie Zhao</a>, <a href="/search/hep-ex?searchtype=author&query=Yue%2C+B">Baobiao Yue</a>, <a href="/search/hep-ex?searchtype=author&query=Lu%2C+H">Haoqi Lu</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+Y">Yufeng Li</a>, <a href="/search/hep-ex?searchtype=author&query=Ling%2C+J">Jiajie Ling</a>, <a href="/search/hep-ex?searchtype=author&query=Yu%2C+Z">Zeyuan Yu</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a> , et al. (579 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="2210.08437v2-abstract-short" style="display: inline;"> The physics potential of detecting $^8$B solar neutrinos will be exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model independent manner by using three distinct channels of the charged-current (CC), neutral-current (NC) and elastic scattering (ES) interactions. Due to the largest-ever mass of $^{13}$C nuclei in the liquid-scintillator detectors and the {expected} low backg… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.08437v2-abstract-full').style.display = 'inline'; document.getElementById('2210.08437v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.08437v2-abstract-full" style="display: none;"> The physics potential of detecting $^8$B solar neutrinos will be exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model independent manner by using three distinct channels of the charged-current (CC), neutral-current (NC) and elastic scattering (ES) interactions. Due to the largest-ever mass of $^{13}$C nuclei in the liquid-scintillator detectors and the {expected} low background level, $^8$B solar neutrinos would be observable in the CC and NC interactions on $^{13}$C for the first time. By virtue of optimized event selections and muon veto strategies, backgrounds from the accidental coincidence, muon-induced isotopes, and external backgrounds can be greatly suppressed. Excellent signal-to-background ratios can be achieved in the CC, NC and ES channels to guarantee the $^8$B solar neutrino observation. From the sensitivity studies performed in this work, we show that JUNO, with ten years of data, can reach the {1$蟽$} precision levels of 5%, 8% and 20% for the $^8$B neutrino flux, $\sin^2胃_{12}$, and $螖m^2_{21}$, respectively. It would be unique and helpful to probe the details of both solar physics and neutrino physics. In addition, when combined with SNO, the world-best precision of 3% is expected for the $^8$B neutrino flux measurement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.08437v2-abstract-full').style.display = 'none'; document.getElementById('2210.08437v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 7 figures, accepted version to appear in The Astrophysical Journal. Yufeng Li and Jiajie Ling are corresponding authors</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astrophysical Journal 965 (2024) 122 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.13772">arXiv:2209.13772</a> <span> [<a href="https://arxiv.org/pdf/2209.13772">pdf</a>, <a href="https://arxiv.org/format/2209.13772">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/18/02/P02004">10.1088/1748-0221/18/02/P02004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reconstruction Algorithm for a Novel Cherenkov Scintillation Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Zheng%2C+Y">Yangheng Zheng</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</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="2209.13772v3-abstract-short" style="display: inline;"> For future MeV-scale neutrino experiments, a Cherenkov scintillation detector, CSD, is of particular interest for its capability to reconstruct both energy and direction for charged particles. A type of new target material, slow liquid scintillator, SlowLS, which can be used to separate Cherenkov and scintillation lights, is one of the options for the neutrino detectors. A multi-hundred ton spheri… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.13772v3-abstract-full').style.display = 'inline'; document.getElementById('2209.13772v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.13772v3-abstract-full" style="display: none;"> For future MeV-scale neutrino experiments, a Cherenkov scintillation detector, CSD, is of particular interest for its capability to reconstruct both energy and direction for charged particles. A type of new target material, slow liquid scintillator, SlowLS, which can be used to separate Cherenkov and scintillation lights, is one of the options for the neutrino detectors. A multi-hundred ton spherical CSD is simulated using a Geant4-based Monte Carlo software, which handles the detailed the micro processes of MeV particles and optical photons and the functions for photomultiplier, PMT, and readout electronics. Twelve SlowLS samples are simulated and studied to cover a wide range of scintillation light yields and scintillation emission time constants. Based on the detailed knowledge of the signal processes, simplified functions are constructed to predict the charge and time signals on the PMTs to fulfill an efficient reconstruction for the energy, direction, and position of charged particles. The performance of the SlowLS reconstruction, including the resulting energy, angular, and position resolution, and particle identification capability, is presented for these samples. The dependence of the performance on the scintillation light yield and emission time constants is understood. This study will be a guideline for future MeV-scale neutrino CSD design and SlowLS development for the interested physics goals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.13772v3-abstract-full').style.display = 'none'; document.getElementById('2209.13772v3-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 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Instrumentation, 2023, 18(02): P02004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.08830">arXiv:2205.08830</a> <span> [<a href="https://arxiv.org/pdf/2205.08830">pdf</a>, <a href="https://arxiv.org/format/2205.08830">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 Astrophysical Phenomena">astro-ph.HE</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="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2022/10/033">10.1088/1475-7516/2022/10/033 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prospects for Detecting the Diffuse Supernova Neutrino Background with JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/hep-ex?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</a>, <a href="/search/hep-ex?searchtype=author&query=Blin%2C+S">Sylvie Blin</a> , et al. (577 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2205.08830v2-abstract-short" style="display: inline;"> We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inverse-beta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced n… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08830v2-abstract-full').style.display = 'inline'; document.getElementById('2205.08830v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.08830v2-abstract-full" style="display: none;"> We present the detection potential for the diffuse supernova neutrino background (DSNB) at the Jiangmen Underground Neutrino Observatory (JUNO), using the inverse-beta-decay (IBD) detection channel on free protons. We employ the latest information on the DSNB flux predictions, and investigate in detail the background and its reduction for the DSNB search at JUNO. The atmospheric neutrino induced neutral current (NC) background turns out to be the most critical background, whose uncertainty is carefully evaluated from both the spread of model predictions and an envisaged \textit{in situ} measurement. We also make a careful study on the background suppression with the pulse shape discrimination (PSD) and triple coincidence (TC) cuts. With latest DSNB signal predictions, more realistic background evaluation and PSD efficiency optimization, and additional TC cut, JUNO can reach the significance of 3$蟽$ for 3 years of data taking, and achieve better than 5$蟽$ after 10 years for a reference DSNB model. In the pessimistic scenario of non-observation, JUNO would strongly improve the limits and exclude a significant region of the model parameter space. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08830v2-abstract-full').style.display = 'none'; document.getElementById('2205.08830v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 11 figures, final published version in JCAP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP 10 (2022) 033 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.08629">arXiv:2205.08629</a> <span> [<a href="https://arxiv.org/pdf/2205.08629">pdf</a>, <a href="https://arxiv.org/format/2205.08629">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-11002-8">10.1140/epjc/s10052-022-11002-8 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mass Testing and Characterization of 20-inch PMTs for JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andre%2C+J+P+A+M">Joao Pedro Athayde Marcondes de Andre</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/hep-ex?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a> , et al. (541 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2205.08629v2-abstract-short" style="display: inline;"> Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20kt liquid-scintillator detector. Its key feature is an excellent energy resolution of at least 3 % at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNO after a detailed testing program whic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08629v2-abstract-full').style.display = 'inline'; document.getElementById('2205.08629v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.08629v2-abstract-full" style="display: none;"> Main goal of the JUNO experiment is to determine the neutrino mass ordering using a 20kt liquid-scintillator detector. Its key feature is an excellent energy resolution of at least 3 % at 1 MeV, for which its instruments need to meet a certain quality and thus have to be fully characterized. More than 20,000 20-inch PMTs have been received and assessed by JUNO after a detailed testing program which began in 2017 and elapsed for about four years. Based on this mass characterization and a set of specific requirements, a good quality of all accepted PMTs could be ascertained. This paper presents the performed testing procedure with the designed testing systems as well as the statistical characteristics of all 20-inch PMTs intended to be used in the JUNO experiment, covering more than fifteen performance parameters including the photocathode uniformity. This constitutes the largest sample of 20-inch PMTs ever produced and studied in detail to date, i.e. 15,000 of the newly developed 20-inch MCP-PMTs from Northern Night Vision Technology Co. (NNVT) and 5,000 of dynode PMTs from Hamamatsu Photonics K. K.(HPK). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.08629v2-abstract-full').style.display = 'none'; document.getElementById('2205.08629v2-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 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.04039">arXiv:2205.04039</a> <span> [<a href="https://arxiv.org/pdf/2205.04039">pdf</a>, <a href="https://arxiv.org/format/2205.04039">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Improving the machine learning based vertex reconstruction for large liquid scintillator detectors with multiple types of PMTs </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Li%2C+Z">Zi-Yuan Li</a>, <a href="/search/hep-ex?searchtype=author&query=Qian%2C+Z">Zhen Qian</a>, <a href="/search/hep-ex?searchtype=author&query=He%2C+J">Jie-Han He</a>, <a href="/search/hep-ex?searchtype=author&query=He%2C+W">Wei He</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+C">Cheng-Xin Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+X">Xun-Ye Cai</a>, <a href="/search/hep-ex?searchtype=author&query=You%2C+Z">Zheng-Yun You</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+Y">Yu-Mei Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wu-Ming Luo</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="2205.04039v1-abstract-short" style="display: inline;"> Precise vertex reconstruction is essential for large liquid scintillator detectors. A novel method based on machine learning has been successfully developed to reconstruct the event vertex in JUNO previously. In this paper, the performance of machine learning based vertex reconstruction is further improved by optimizing the input images of the neural networks. By separating the information of diff… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.04039v1-abstract-full').style.display = 'inline'; document.getElementById('2205.04039v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.04039v1-abstract-full" style="display: none;"> Precise vertex reconstruction is essential for large liquid scintillator detectors. A novel method based on machine learning has been successfully developed to reconstruct the event vertex in JUNO previously. In this paper, the performance of machine learning based vertex reconstruction is further improved by optimizing the input images of the neural networks. By separating the information of different types of PMTs as well as adding the information of the second hit of PMTs, the vertex resolution is improved by about 9.4 % at 1 MeV and 9.8 % at 11 MeV, respectively. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.04039v1-abstract-full').style.display = 'none'; document.getElementById('2205.04039v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2204.13249">arXiv:2204.13249</a> <span> [<a href="https://arxiv.org/pdf/2204.13249">pdf</a>, <a href="https://arxiv.org/format/2204.13249">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/ac8bc9">10.1088/1674-1137/ac8bc9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Sub-percent Precision Measurement of Neutrino Oscillation Parameters with JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/hep-ex?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/hep-ex?searchtype=author&query=Bellato%2C+M">Marco Bellato</a> , et al. (581 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="2204.13249v1-abstract-short" style="display: inline;"> JUNO is a multi-purpose neutrino observatory under construction in the south of China. This publication presents new sensitivity estimates for the measurement of the $螖m^2_{31}$, $螖m^2_{21}$, $\sin^2 胃_{12}$, and $\sin^2 胃_{13}$ oscillation parameters using reactor antineutrinos, which is one of the primary physics goals of the experiment. The sensitivities are obtained using the best knowledge av… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.13249v1-abstract-full').style.display = 'inline'; document.getElementById('2204.13249v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2204.13249v1-abstract-full" style="display: none;"> JUNO is a multi-purpose neutrino observatory under construction in the south of China. This publication presents new sensitivity estimates for the measurement of the $螖m^2_{31}$, $螖m^2_{21}$, $\sin^2 胃_{12}$, and $\sin^2 胃_{13}$ oscillation parameters using reactor antineutrinos, which is one of the primary physics goals of the experiment. The sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site, the nuclear reactors in the surrounding area and beyond, the detector response uncertainties, and the reactor antineutrino spectral shape constraints expected from the TAO satellite detector. It is found that the $螖m^2_{31}$, $螖m^2_{21}$, and $\sin^2 胃_{12}$ oscillation parameters will be determined to better than 0.5% precision in six years of data collection, which represents approximately an order of magnitude improvement over existing constraints. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.13249v1-abstract-full').style.display = 'none'; document.getElementById('2204.13249v1-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 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 10 figures, submitted to Chinese Physics C</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.10439">arXiv:2203.10439</a> <span> [<a href="https://arxiv.org/pdf/2203.10439">pdf</a>, <a href="https://arxiv.org/format/2203.10439">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for new hadronic decays of $h_{c}$ and observation of $h_{c}\to p\bar{p}畏$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (494 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.10439v1-abstract-short" style="display: inline;"> A search for the hadronic decays of the $h_{c}$ meson to the final states $p\bar{p}蟺^{+}蟺^{-}蟺^{0}$, $p\bar{p}畏$, and $p\bar{p}蟺^0$ via the process $蠄(3686) \to 蟺^{0}{h_c}$ is performed using $(4.48\pm0.03)\times10^{8}$ $蠄(3686)$ events collected with the BESIII detector. The decay channel $h_{c}\to p\bar{p}畏$ is observed for the first time with a significance greater than $5蟽$ and a branching fra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10439v1-abstract-full').style.display = 'inline'; document.getElementById('2203.10439v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.10439v1-abstract-full" style="display: none;"> A search for the hadronic decays of the $h_{c}$ meson to the final states $p\bar{p}蟺^{+}蟺^{-}蟺^{0}$, $p\bar{p}畏$, and $p\bar{p}蟺^0$ via the process $蠄(3686) \to 蟺^{0}{h_c}$ is performed using $(4.48\pm0.03)\times10^{8}$ $蠄(3686)$ events collected with the BESIII detector. The decay channel $h_{c}\to p\bar{p}畏$ is observed for the first time with a significance greater than $5蟽$ and a branching fraction of $\left( {6.41 \pm 1.74 \pm 0.53 \pm 1.00} \right) \times {10^{ -4}}$, where the uncertainties are statistical, systematic, and that from the branching fraction of $蠄(3686)\to蟺^{0}h_{c}$. Strong evidence for the decay ${h_c} \to p\bar{p}{蟺^+}{蟺^-}{蟺^0}$ is found with a significance of $4.9蟽$ and a branching fraction of $\left( {3.84 \pm 0.83 \pm0.69} \pm 0.58 \right) \times {10^{ - 3}}$. The significances include systematic uncertainties. No clear signal of the decay $h_c\to p\bar{p}蟺^{0}$ is found, and an upper limit of $6.59\times 10^{-4}$ on its branching fraction is set at the 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.10439v1-abstract-full').style.display = 'none'; document.getElementById('2203.10439v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.06688">arXiv:2203.06688</a> <span> [<a href="https://arxiv.org/pdf/2203.06688">pdf</a>, <a href="https://arxiv.org/format/2203.06688">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP07(2022)051">10.1007/JHEP07(2022)051 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Amplitude analysis and branching fraction measurement of $D_{s}^{+} \to K^-K^+蟺^+蟺^+蟺^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (494 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.06688v1-abstract-short" style="display: inline;"> Using $e^{+}e^{-}$ annihilation data corresponding to a total integrated luminosity of $6.32$ fb$^{-1}$ collected at the center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay $D^+_s \to K^-K^+蟺^+蟺^+蟺^-$ and determine the relative fractions and phases of different intermediate processes. Absolute branching fraction of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.06688v1-abstract-full').style.display = 'inline'; document.getElementById('2203.06688v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.06688v1-abstract-full" style="display: none;"> Using $e^{+}e^{-}$ annihilation data corresponding to a total integrated luminosity of $6.32$ fb$^{-1}$ collected at the center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay $D^+_s \to K^-K^+蟺^+蟺^+蟺^-$ and determine the relative fractions and phases of different intermediate processes. Absolute branching fraction of $D^+_s\to K^-K^+蟺^+蟺^+蟺^-$ decay is measured to be ($6.60\pm0.47_{\rm stat.}\pm0.35_{\rm syst.})\times 10^{-3}$. The dominant intermediate process is $D_{s}^{+} \to a_1(1260)^+蠁, 蠁\to K^-K^+, a_1(1260)^+\to 蟻蟺^+, 蟻\to蟺^+蟺^-$, with a branching fraction of $(5.16\pm0.41_{\rm stat.}\pm0.27_{\rm syst.})\times 10^{-3}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.06688v1-abstract-full').style.display = 'none'; document.getElementById('2203.06688v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.01860">arXiv:2203.01860</a> <span> [<a href="https://arxiv.org/pdf/2203.01860">pdf</a>, <a href="https://arxiv.org/format/2203.01860">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="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The Potential to Probe Solar Neutrino Physics with LiCl Water Solution </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+J">Jialiang Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</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="2203.01860v2-abstract-short" style="display: inline;"> Lithium chloride water solution is a good option for solar neutrino detection. The $谓_e$ charged-current (CC) interaction cross-section on $\rm{{}^{7}Li}$ is evaluated with new B(GT) experimental measurements. The total CC interaction cross-section weighted by the solar $^8$B electron neutrino spectrum is $3.759\times10^{-42} \rm{cm}^2$, which is about 60 times that of the neutrino-electron elasti… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.01860v2-abstract-full').style.display = 'inline'; document.getElementById('2203.01860v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.01860v2-abstract-full" style="display: none;"> Lithium chloride water solution is a good option for solar neutrino detection. The $谓_e$ charged-current (CC) interaction cross-section on $\rm{{}^{7}Li}$ is evaluated with new B(GT) experimental measurements. The total CC interaction cross-section weighted by the solar $^8$B electron neutrino spectrum is $3.759\times10^{-42} \rm{cm}^2$, which is about 60 times that of the neutrino-electron elastic scattering process. The final state effective kinetic energy after the CC interaction on $\rm{{}^{7}Li}$ directly reflects the neutrino energy, which stands in sharp contrast to the plateau structure of recoil electrons of the elastic scattering. With the high solubility of LiCl of 74.5 g/100 g water at 10$^\circ$C and the high natural abundance of 92.41%, the molarity of $\rm{{}^{7}Li}$ in water can reach 11 mol/L for safe operation at room temperature. The CC event rate of $谓_e$ on $\rm{{}^{7}Li}$ in the LiCl water solution is comparable to that of neutrino-electron elastic scattering. In addition, the $谓_e$ CC interaction with the contained $\rm{{}^{37}Cl}$ also contributes a few percent of the total CC event rate. The contained $\rm{{}^{35}Cl}$ and $\rm{{}^{6}Li}$ also make a delay-coincidence detection for electron antineutrinos possible. The recrystallization method is found to be applicable for LiCl sample purification. The measured attenuation length of $11\pm1$ m at 430 nm shows that the LiCl solution is practicable for a 10-m diameter detector for solar neutrino detection. Clear advantages are found in studying the upturn effect of solar neutrino oscillation, light sterile neutrinos, and Earth matter effect. The sensitivities in discovering solar neutrino upturn and light sterile neutrinos are shown. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.01860v2-abstract-full').style.display = 'none'; document.getElementById('2203.01860v2-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 11 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.11321">arXiv:2201.11321</a> <span> [<a href="https://arxiv.org/pdf/2201.11321">pdf</a>, <a href="https://arxiv.org/format/2201.11321">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Reconstruction of Muon Bundle in the JUNO Central Detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Yang%2C+C">Cheng-Feng Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Huang%2C+Y">Yong-Bo Huang</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+J">Ji-Lei Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+D">Di-Ru Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Lu%2C+H">Hao-Qi Lu</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+Y">Yong-Peng Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wu-Ming Luo</a>, <a href="/search/hep-ex?searchtype=author&query=He%2C+M">Miao He</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+G">Guo-Ming Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+S">Si-Yuan Zhang</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="2201.11321v1-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment. One of the main goals is to determine the neutrino mass ordering by precisely measuring the energy spectrum of reactor antineutrinos. For reactor antineutrino detection, cosmogenic backgrounds such as $^9$Li/$^8$He and fast neutrons induced by cosmic muons should be rejected carefully by applying muon veto… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.11321v1-abstract-full').style.display = 'inline'; document.getElementById('2201.11321v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.11321v1-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment. One of the main goals is to determine the neutrino mass ordering by precisely measuring the energy spectrum of reactor antineutrinos. For reactor antineutrino detection, cosmogenic backgrounds such as $^9$Li/$^8$He and fast neutrons induced by cosmic muons should be rejected carefully by applying muon veto cuts, which requires good muon track reconstruction. With a 20~kton liquid scintillator detector, simulation shows the proportion of muon bundles to be around 8\% in the JUNO, while its reconstruction is rarely discussed in previous experiments. According to the charge response of the PMT array, this paper proposes an efficient algorithm for muon bundle track reconstruction. This is the first reconstruction of muon bundles in a large volume liquid scintillator detector. Additionally, the algorithm shows good performance and potential in reconstruction for both single muon and double muons. The spatial resolution of single muon reconstruction is 20~cm and the angular resolution is $0.5^\circ$. As for double muon reconstruction, the spatial resolution and angular resolution could be 30~cm and $1.0^\circ$, respectively. Moreover, this paper has also discussed muon classification and veto strategy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.11321v1-abstract-full').style.display = 'none'; document.getElementById('2201.11321v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.14450">arXiv:2112.14450</a> <span> [<a href="https://arxiv.org/pdf/2112.14450">pdf</a>, <a href="https://arxiv.org/format/2112.14450">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP06(2022)062">10.1007/JHEP06(2022)062 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=JUNO+collaboration"> JUNO collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+J">Jun Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Liao%2C+J">Jiajun Liao</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+W">Wei Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">Jo茫o Pedro Athayde Marcondes de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/hep-ex?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/hep-ex?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/hep-ex?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">Eric Baussan</a> , et al. (582 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="2112.14450v2-abstract-short" style="display: inline;"> We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These damping signatures are motivated by various new physics models, including quantum decoherence, $谓_3$ decay, neutrino absorption, and wave packet decoherence. The phenomenological effects of these models can be characterized by exponential damping fac… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.14450v2-abstract-full').style.display = 'inline'; document.getElementById('2112.14450v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.14450v2-abstract-full" style="display: none;"> We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These damping signatures are motivated by various new physics models, including quantum decoherence, $谓_3$ decay, neutrino absorption, and wave packet decoherence. The phenomenological effects of these models can be characterized by exponential damping factors at the probability level. We assess how well JUNO can constrain these damping parameters and how to disentangle these different damping signatures at JUNO. Compared to current experimental limits, JUNO can significantly improve the limits on $蟿_3/m_3$ in the $谓_3$ decay model, the width of the neutrino wave packet $蟽_x$, and the intrinsic relative dispersion of neutrino momentum $蟽_{\rm rel}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.14450v2-abstract-full').style.display = 'none'; document.getElementById('2112.14450v2-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, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 2 figures, 4 tables. Version published in JHEP</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JHEP06(2022)062 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2111.13915">arXiv:2111.13915</a> <span> [<a href="https://arxiv.org/pdf/2111.13915">pdf</a>, <a href="https://arxiv.org/format/2111.13915">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for the decay $h_c\rightarrow蟺^0J/蠄$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (491 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2111.13915v2-abstract-short" style="display: inline;"> A search for the decay $h_c\rightarrow蟺^0J/蠄$ is performed using a sample of $h_c$ produced in the reaction $e^+e^-\rightarrow蟺^+蟺^-h_c$. The data samples were collected with the BESIII detector at center-of-mass energies between 4.189 and 4.437 GeV, corresponding to a total integrated luminosity of 11 fb$^{-1}$. No significant signal is observed. Upper limits on the branching ratio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.13915v2-abstract-full').style.display = 'inline'; document.getElementById('2111.13915v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.13915v2-abstract-full" style="display: none;"> A search for the decay $h_c\rightarrow蟺^0J/蠄$ is performed using a sample of $h_c$ produced in the reaction $e^+e^-\rightarrow蟺^+蟺^-h_c$. The data samples were collected with the BESIII detector at center-of-mass energies between 4.189 and 4.437 GeV, corresponding to a total integrated luminosity of 11 fb$^{-1}$. No significant signal is observed. Upper limits on the branching ratio $\mathcal{B}(h_c\rightarrow蟺^0J/蠄)/\mathcal{B}(h_c\rightarrow纬畏_c\rightarrow纬K^+K^-蟺^0)$ and on the branching fraction $\mathcal{B}(h_c\rightarrow蟺^0J/蠄)$ are determined to be $7.5\times10^{-2}$ and $4.7\times10^{-4}$ at $90\%$ confidence level, respectively. The latter is derived from the former using the measured branching fraction of the normalization channel. This is the first determination of the upper limit of the decay $h_c\rightarrow蟺^0J/蠄$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.13915v2-abstract-full').style.display = 'none'; document.getElementById('2111.13915v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 4 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/2110.04510">arXiv:2110.04510</a> <span> [<a href="https://arxiv.org/pdf/2110.04510">pdf</a>, <a href="https://arxiv.org/ps/2110.04510">ps</a>, <a href="https://arxiv.org/format/2110.04510">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the $e^{+}e^{-}\to危^{0}\bar危^{0}$ cross sections at center-of-mass energies from $2.3864$ to $3.0200$ GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anita"> Anita</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Biernat%2C+J">J Biernat</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (467 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="2110.04510v2-abstract-short" style="display: inline;"> The Born cross sections of $e^{+}e^{-}\to 危^{0}\bar危^{0}$ are measured at center-of-mass energies from $2.3864$ to $3.0200$ GeV using data samples with an integrated luminosity of $328.5$ pb$^{-1}$ collected with the BESIII detector operating at the BEPCII collider. The analysis makes use of a novel reconstruction method for energies near production threshold, while a single-tag method is employed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.04510v2-abstract-full').style.display = 'inline'; document.getElementById('2110.04510v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.04510v2-abstract-full" style="display: none;"> The Born cross sections of $e^{+}e^{-}\to 危^{0}\bar危^{0}$ are measured at center-of-mass energies from $2.3864$ to $3.0200$ GeV using data samples with an integrated luminosity of $328.5$ pb$^{-1}$ collected with the BESIII detector operating at the BEPCII collider. The analysis makes use of a novel reconstruction method for energies near production threshold, while a single-tag method is employed at other center-of-mass energies. The measured cross sections are consistent with earlier results from BaBar, with a substantially improved precision. The cross-section lineshape can be well described by a perturbative QCD-driven energy function. In addition, the effective form factors of the $危^{0}$ baryon are determined. The results provide precise experimental input for testing various theoretical predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.04510v2-abstract-full').style.display = 'none'; document.getElementById('2110.04510v2-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 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures, Journal (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/2110.03415">arXiv:2110.03415</a> <span> [<a href="https://arxiv.org/pdf/2110.03415">pdf</a>, <a href="https://arxiv.org/ps/2110.03415">ps</a>, <a href="https://arxiv.org/format/2110.03415">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.105.032009">10.1103/PhysRevD.105.032009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $D^{0(+)}\to K^0_S蟺^{0(+)}蠅$ and improved measurement of $D^0\to K^-蟺^+蠅$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (490 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="2110.03415v1-abstract-short" style="display: inline;"> By analyzing an $e^+e^-$ annihilation data sample with an integrated luminosity of $2.93\ \rm fb^{-1}$ taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions of the hadronic decays $D^0\to K^-蟺^+蠅$, $D^0\to K^0_S蟺^0蠅$, and $D^+\to K^0_S蟺^+蠅$ to be $(3.392 \pm 0.044_{\rm stat} \pm 0.085_{\rm syst})\%$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.03415v1-abstract-full').style.display = 'inline'; document.getElementById('2110.03415v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2110.03415v1-abstract-full" style="display: none;"> By analyzing an $e^+e^-$ annihilation data sample with an integrated luminosity of $2.93\ \rm fb^{-1}$ taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions of the hadronic decays $D^0\to K^-蟺^+蠅$, $D^0\to K^0_S蟺^0蠅$, and $D^+\to K^0_S蟺^+蠅$ to be $(3.392 \pm 0.044_{\rm stat} \pm 0.085_{\rm syst})\%$, $(0.848 \pm 0.046_{\rm stat} \pm 0.031_{\rm syst})\%$, and $(0.707 \pm 0.041_{\rm stat} \pm 0.029_{\rm syst})\%$, respectively. The accuracy of the branching fraction measurement of the decay $D^0\to K^-蟺^+蠅$ is improved by a factor of seven compared to the world average value. The $D^{0}\to K^0_S蟺^{0}蠅$ and $D^{+}\to K^0_S蟺^{+}蠅$ decays are observed for the first time. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2110.03415v1-abstract-full').style.display = 'none'; document.getElementById('2110.03415v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.12751">arXiv:2109.12751</a> <span> [<a href="https://arxiv.org/pdf/2109.12751">pdf</a>, <a href="https://arxiv.org/ps/2109.12751">ps</a>, <a href="https://arxiv.org/format/2109.12751">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.112009">10.1103/PhysRevD.104.112009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cross sections for the reactions $e^+e^-\rightarrow K^+K^-蟺^+蟺^-(蟺^0)$, $K^+K^-K^+K^-(蟺^0)$, $蟺^+蟺^-蟺^+蟺^-(蟺^0)$, $p\bar{p}蟺^+蟺^-(蟺^0)$ in the energy region between 3.773 and 4.600 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (490 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.12751v2-abstract-short" style="display: inline;"> Using the data samples collected in the energy range from 3.773 to 4.600 GeV with the BESIII detector at the BEPCII collider, we measure the dressed cross sections as a function of center-of-mass energy for $e^+e^-\rightarrow K^+K^-蟺^+蟺^-(蟺^0)$, $K^+K^-K^+K^-(蟺^0)$, $蟺^+蟺^-蟺^+蟺^-(蟺^0)$, and $p\bar{p}蟺^+蟺^-(蟺^0)$. The cross sections for $e^+e^-\rightarrow K^+K^-K^+K^-蟺^0$, $p\bar{p}蟺^+蟺^-(蟺^0)$ are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.12751v2-abstract-full').style.display = 'inline'; document.getElementById('2109.12751v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.12751v2-abstract-full" style="display: none;"> Using the data samples collected in the energy range from 3.773 to 4.600 GeV with the BESIII detector at the BEPCII collider, we measure the dressed cross sections as a function of center-of-mass energy for $e^+e^-\rightarrow K^+K^-蟺^+蟺^-(蟺^0)$, $K^+K^-K^+K^-(蟺^0)$, $蟺^+蟺^-蟺^+蟺^-(蟺^0)$, and $p\bar{p}蟺^+蟺^-(蟺^0)$. The cross sections for $e^+e^-\rightarrow K^+K^-K^+K^-蟺^0$, $p\bar{p}蟺^+蟺^-(蟺^0)$ are the first measurements. Cross sections for the other five channels are much more precise than previous results in this energy region. We also search for charmonium and charmonium-like resonances, such as the $Y(4230)$, decaying into the same final states. We find evidence of the $蠄(4040)$ decaying to $蟺^+蟺^-蟺^+蟺^-蟺^0$ with a statistical significance of $3.6蟽$. Upper limits are provided for other decays since no clear signals are observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.12751v2-abstract-full').style.display = 'none'; document.getElementById('2109.12751v2-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.06621">arXiv:2109.06621</a> <span> [<a href="https://arxiv.org/pdf/2109.06621">pdf</a>, <a href="https://arxiv.org/ps/2109.06621">ps</a>, <a href="https://arxiv.org/format/2109.06621">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.092012">10.1103/PhysRevD.104.092012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of $蠄(3686)\to螢(1530)^{0}\bar螢(1530)^{0}$ and $螢(1530)^{0}\bar螢^0$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (490 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.06621v1-abstract-short" style="display: inline;"> Using $(448.1\pm2.9)\times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector and a single-baryon tagging technique, we present the first observation of the decays $蠄(3686)\to螢(1530)^{0}\bar螢(1530)^{0}$ and $螢(1530)^{0}\bar螢^0$. The branching fractions are measured to be ${\cal{B}}(蠄(3686)\to螢(1530)^{0}\bar螢(1530)^{0}) = (6.77\pm0.14\pm0.39)\times10^{-5}$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06621v1-abstract-full').style.display = 'inline'; document.getElementById('2109.06621v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.06621v1-abstract-full" style="display: none;"> Using $(448.1\pm2.9)\times 10^{6}$ $蠄(3686)$ events collected with the BESIII detector and a single-baryon tagging technique, we present the first observation of the decays $蠄(3686)\to螢(1530)^{0}\bar螢(1530)^{0}$ and $螢(1530)^{0}\bar螢^0$. The branching fractions are measured to be ${\cal{B}}(蠄(3686)\to螢(1530)^{0}\bar螢(1530)^{0}) = (6.77\pm0.14\pm0.39)\times10^{-5}$ and ${\cal{B}}(蠄(3686)\to螢(1530)^{0}\bar螢^{0}) = (0.53\pm0.04\pm0.03)\times10^{-5}$. Here, the first and second uncertainties are statistical and systematic, respectively. In addition, the parameter associated with the angular distribution for the decay $蠄(3686)\to螢(1530)^{0}\bar螢(1530)^0$ is determined to be $伪= 0.32\pm0.19\pm0.07$, in agreement with theoretical predictions within one standard deviation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.06621v1-abstract-full').style.display = 'none'; document.getElementById('2109.06621v1-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review D 104, 092012 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.09948">arXiv:2108.09948</a> <span> [<a href="https://arxiv.org/pdf/2108.09948">pdf</a>, <a href="https://arxiv.org/ps/2108.09948">ps</a>, <a href="https://arxiv.org/format/2108.09948">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.072007">10.1103/PhysRevD.104.072007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for the hyperon semileptonic decay $螢^{-} \rightarrow 螢^{0} e^{-} \bar{谓_{e}}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (495 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="2108.09948v2-abstract-short" style="display: inline;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected by the BESIII detector at the BEPCII collider, we search for the hyperon semileptonic decay $螢^{-} \rightarrow 螢^{0} e^{-} \bar谓_{e}$. No significant signal is observed and the upper limit on the branching fraction $\mathcal B(螢^{-} \rightarrow 螢^{0} e^{-} \bar谓_{e})$ is set to be $2.59\times10^{-4}$ at 90 % confidence level. This result… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09948v2-abstract-full').style.display = 'inline'; document.getElementById('2108.09948v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.09948v2-abstract-full" style="display: none;"> Using $(10.087\pm0.044)\times10^{9}$ $J/蠄$ events collected by the BESIII detector at the BEPCII collider, we search for the hyperon semileptonic decay $螢^{-} \rightarrow 螢^{0} e^{-} \bar谓_{e}$. No significant signal is observed and the upper limit on the branching fraction $\mathcal B(螢^{-} \rightarrow 螢^{0} e^{-} \bar谓_{e})$ is set to be $2.59\times10^{-4}$ at 90 % confidence level. This result is one order of magnitude more strict than the previous best limit. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.09948v2-abstract-full').style.display = 'none'; document.getElementById('2108.09948v2-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 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. D 104, 072007 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.04010">arXiv:2108.04010</a> <span> [<a href="https://arxiv.org/pdf/2108.04010">pdf</a>, <a href="https://arxiv.org/format/2108.04010">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/ac66cc">10.1088/1674-1137/ac66cc <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Muon-induced Neutron Production at the China Jinping Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+L">Lin Zhao</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Peters%2C+L+B">Lars Bathe Peters</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chouaki%2C+M">Mourad Chouaki</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+Y">Yiyang Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Yeh%2C+M">Minfang Yeh</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+B">Bin Zhang</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="2108.04010v2-abstract-short" style="display: inline;"> Solar, terrestrial, and supernova neutrino experiments are subject to muon-induced radioactive backgrounds. The China Jinping Underground Laboratory (CJPL), with its unique advantage of a 2400 m rock coverage and long distance from nuclear power plants, is ideal for MeV-scale neutrino experiments. Using a 1-ton prototype detector of the Jinping Neutrino Experiment (JNE), we detected 343 high-energ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04010v2-abstract-full').style.display = 'inline'; document.getElementById('2108.04010v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.04010v2-abstract-full" style="display: none;"> Solar, terrestrial, and supernova neutrino experiments are subject to muon-induced radioactive backgrounds. The China Jinping Underground Laboratory (CJPL), with its unique advantage of a 2400 m rock coverage and long distance from nuclear power plants, is ideal for MeV-scale neutrino experiments. Using a 1-ton prototype detector of the Jinping Neutrino Experiment (JNE), we detected 343 high-energy cosmic-ray muons and (7.86$ \pm $3.97) muon-induced neutrons from an 820.28-day dataset at the first phase of CJPL (CJPL-I). Based on the muon-induced neutrons, we measured the corresponding muon-induced neutron yield in a liquid scintillator to be $ (3.44 \pm 1.86_{\rm stat.}\pm 0.76_{\rm syst.})\times 10^{-4}渭^{-1}\rm g^{-1}cm^{2} $ at an average muon energy of \SI{340}{GeV}. We provided the first study for such neutron background at CJPL. A global fit including this measurement shows a power-law coefficient of (0.75$ \pm $0.02) for the dependence of the neutron yield at the liquid scintillator on muon energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04010v2-abstract-full').style.display = 'none'; document.getElementById('2108.04010v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2022 Chinese Phys. C 46 085001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.02410">arXiv:2108.02410</a> <span> [<a href="https://arxiv.org/pdf/2108.02410">pdf</a>, <a href="https://arxiv.org/ps/2108.02410">ps</a>, <a href="https://arxiv.org/format/2108.02410">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.L091104">10.1103/PhysRevD.104.L091104 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the cross section for $e^{+}e^{-}\rightarrow螞\bar螞$ and evidence of the decay $蠄(3770)\rightarrow螞\bar螞$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (491 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="2108.02410v2-abstract-short" style="display: inline;"> The Born cross section of the process $e^{+}e^{-}\rightarrow螞\bar螞$ is measured at 33 center-of-mass energies between 3.51 and 4.60 GeV using data corresponding to the total integrated luminosity of 20.0 fb$^{-1}$ collected with the BESIII detector at the BEPCII collider. Describing the energy dependence of the cross section requires a contribution from the $蠄(3770)\rightarrow螞\bar螞$ decay, which… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02410v2-abstract-full').style.display = 'inline'; document.getElementById('2108.02410v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.02410v2-abstract-full" style="display: none;"> The Born cross section of the process $e^{+}e^{-}\rightarrow螞\bar螞$ is measured at 33 center-of-mass energies between 3.51 and 4.60 GeV using data corresponding to the total integrated luminosity of 20.0 fb$^{-1}$ collected with the BESIII detector at the BEPCII collider. Describing the energy dependence of the cross section requires a contribution from the $蠄(3770)\rightarrow螞\bar螞$ decay, which is fitted with a significance of 4.6-4.9$蟽$ including the systematic uncertainty. The lower bound on its branching fraction is $2.4\times10^{-6}$ at the 90% confidence level (C.L.), at least an order of magnitude larger than expected from predictions using a scaling based on observed electronic widths. This result indicates the importance of effects from vector charmonium(-like) states when interpreting data in terms of e.g., electromagnetic structure observables. The data do not allow for definite conclusions on the interplay with other vector charmonium(-like) states, and we set 90% C.L.upper limits for the products of their electronic widths and the branching fractions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02410v2-abstract-full').style.display = 'none'; document.getElementById('2108.02410v2-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 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 4 Figures, 1 Supplemental Material with 2 pages, consistent with paper published in Phys. Rev. D 104, L091104 (2021)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, L091104 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.02405">arXiv:2108.02405</a> <span> [<a href="https://arxiv.org/pdf/2108.02405">pdf</a>, <a href="https://arxiv.org/format/2108.02405">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.011803">10.1103/PhysRevLett.128.011803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of polarizations in the decay $D^0 \to 蠅蠁$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (491 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="2108.02405v3-abstract-short" style="display: inline;"> Using a data sample corresponding to an integrated luminosity of 2.93 fb$^{-1}$ collected at a center-of-mass energy $\sqrt{s}=3.773$ GeV by the BESIII detector, the decay $D^0 \to蠅蠁$ is observed for the first time. The branching fraction is measured to be $(6.48 \pm 0.96 \pm 0.40)\times 10^{-4}$ with a significance of $6.3 蟽$, where the first and second uncertainties are statistical and systemati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02405v3-abstract-full').style.display = 'inline'; document.getElementById('2108.02405v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.02405v3-abstract-full" style="display: none;"> Using a data sample corresponding to an integrated luminosity of 2.93 fb$^{-1}$ collected at a center-of-mass energy $\sqrt{s}=3.773$ GeV by the BESIII detector, the decay $D^0 \to蠅蠁$ is observed for the first time. The branching fraction is measured to be $(6.48 \pm 0.96 \pm 0.40)\times 10^{-4}$ with a significance of $6.3 蟽$, where the first and second uncertainties are statistical and systematic, respectively. An angular analysis reveals that the $蠁$ and $蠅$ mesons from the $D^0 \to 蠅蠁$ decay are transversely polarized. The $95\%$ confidence level upper limit on longitudinal polarization fraction is set to be less than $0.24$, which is inconsistent with current theoretical expectations and challenges our understanding of the underlying dynamics in charm meson decays. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.02405v3-abstract-full').style.display = 'none'; document.getElementById('2108.02405v3-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 3 figures, to be accepted by PRL</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> BAM-404 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.09210">arXiv:2107.09210</a> <span> [<a href="https://arxiv.org/pdf/2107.09210">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.052012">10.1103/PhysRevD.104.052012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cross Section Measurement of $e^+e^- \rightarrow 蟺^+蟺^-蠄(3686)$ from $\sqrt{s}=4.0076$~GeV to 4.6984~GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (490 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="2107.09210v2-abstract-short" style="display: inline;"> Using data samples with a total integrated luminosity of $20.1~\rm fb^{-1}$ collected by the BESIII detector operating at the BEPCII collider, the cross section of the process $e^+e^- \rightarrow 蟺^+蟺^-蠄(3686)$ is measured at center-of-mass energies between 4.0076 and 4.6984 GeV. The measured cross section is consistent with previous results, but with much improved precision. A fit to the measured… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.09210v2-abstract-full').style.display = 'inline'; document.getElementById('2107.09210v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.09210v2-abstract-full" style="display: none;"> Using data samples with a total integrated luminosity of $20.1~\rm fb^{-1}$ collected by the BESIII detector operating at the BEPCII collider, the cross section of the process $e^+e^- \rightarrow 蟺^+蟺^-蠄(3686)$ is measured at center-of-mass energies between 4.0076 and 4.6984 GeV. The measured cross section is consistent with previous results, but with much improved precision. A fit to the measured energy-dependent cross section, which includes three Breit-Wigner functions and a non-resonant contribution, confirms the existence of the charmonium-like states $Y(4220)$, $Y(4390)$, and $Y(4660)$. This is the first observation of the $Y(4660)$ at the BESIII experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.09210v2-abstract-full').style.display = 'none'; document.getElementById('2107.09210v2-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 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. Rev. D 104, 052012 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.06704">arXiv:2107.06704</a> <span> [<a href="https://arxiv.org/pdf/2107.06704">pdf</a>, <a href="https://arxiv.org/ps/2107.06704">ps</a>, <a href="https://arxiv.org/format/2107.06704">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> </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.127.121802">10.1103/PhysRevLett.127.121802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First Measurement of the Absolute Branching Fraction of $螞\to p 渭^- \bar谓_渭$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (493 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="2107.06704v1-abstract-short" style="display: inline;"> The absolute branching fraction of $螞\to p 渭^- \bar谓_渭$ is reported for the first time based on an $e^+e^-$ annihilation sample of ten billion $J/蠄$ events collected with the BESIII detector at $\sqrt{s}=3.097$ GeV. The branching fraction is determined to be ${\mathcal B}(螞\to p渭^- \bar谓_渭) = [1.48\pm0.21(\rm stat) \pm 0.08(\rm syst)]\times 10^{-4}$, which is a significant improvement in precisio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.06704v1-abstract-full').style.display = 'inline'; document.getElementById('2107.06704v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.06704v1-abstract-full" style="display: none;"> The absolute branching fraction of $螞\to p 渭^- \bar谓_渭$ is reported for the first time based on an $e^+e^-$ annihilation sample of ten billion $J/蠄$ events collected with the BESIII detector at $\sqrt{s}=3.097$ GeV. The branching fraction is determined to be ${\mathcal B}(螞\to p渭^- \bar谓_渭) = [1.48\pm0.21(\rm stat) \pm 0.08(\rm syst)]\times 10^{-4}$, which is a significant improvement in precision over the previous indirect measurements. Combining this result with the world average of ${\mathcal B}(螞\to p e^- \bar谓_{e})$, we obtain the ratio, $\frac{螕(螞\to p 渭^- \bar谓_渭)}{螕(螞\to p e^- \bar谓_{e})}$, to be $0.178 \pm 0.028$, which agrees with the standard model prediction assuming lepton flavor universality. The asymmetry of the branching fractions of $螞\to p 渭^- \bar谓_渭$ and $\bar螞 \to \bar{p} 渭^+ 谓_渭$ is also determined, and no evidence for $CP$ violation is found. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.06704v1-abstract-full').style.display = 'none'; document.getElementById('2107.06704v1-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 2figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 127, 121802 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.03604">arXiv:2107.03604</a> <span> [<a href="https://arxiv.org/pdf/2107.03604">pdf</a>, <a href="https://arxiv.org/ps/2107.03604">ps</a>, <a href="https://arxiv.org/format/2107.03604">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.092001">10.1103/PhysRevD.104.092001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of $e^+e^-\to纬蠂_{c0,c1,c2}$ cross sections at center-of-mass energies between 3.77 and 4.60 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (490 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="2107.03604v2-abstract-short" style="display: inline;"> The $e^+e^-\to纬蠂_{cJ}$ ($J=0,1,2$) processes are studied at center-of-mass energies ranging from 3.773 to 4.600 GeV, using a total integrated luminosity of 19.3 fb$^{-1}$ $e^+e^-$ annihilation data accumulated with the BESIII detector at BEPCII. We observe for the first time $e^+e^-\to纬蠂_{c1,c2}$ signals at $\sqrt{s}=$ 4.180 GeV with statistical significances of 7.6$蟽$ and 6.0$蟽$, respectively. Th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03604v2-abstract-full').style.display = 'inline'; document.getElementById('2107.03604v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.03604v2-abstract-full" style="display: none;"> The $e^+e^-\to纬蠂_{cJ}$ ($J=0,1,2$) processes are studied at center-of-mass energies ranging from 3.773 to 4.600 GeV, using a total integrated luminosity of 19.3 fb$^{-1}$ $e^+e^-$ annihilation data accumulated with the BESIII detector at BEPCII. We observe for the first time $e^+e^-\to纬蠂_{c1,c2}$ signals at $\sqrt{s}=$ 4.180 GeV with statistical significances of 7.6$蟽$ and 6.0$蟽$, respectively. The production cross section of $e^+e^-\to纬蠂_{c1,c2}$ at each center-of-mass energy is also measured. We find that the line shape of the $e^+e^-\to纬蠂_{c1}$ cross section can be described with conventional charmonium states $蠄(3686)$, $蠄(3770)$, $蠄(4040)$, $蠄(4160)$. Compared with this, for the $e^+e^-\to纬蠂_{c2}$ channel, one more additional resonance is added to describe the cross section line shape. Its mass and width are measured to be $M=4371.7\pm7.5\pm1.8$ MeV/$c^2$ and $螕^{tot}=51.1\pm17.6\pm1.9$ MeV, where the first uncertainties are statistical and the second systematic. The significance of this resonance is estimated to be 5.8$蟽$, and its parameters agree with the $Y(4360)$ resonance previously reported in $e^+e^-\to蟺^+蟺^-蠄(3686)$, and the $Y(4390)$ in $e^+e^-\to蟺^+蟺^-h_c$ within uncertainties. No significant signal for the $e^+e^-\to纬蠂_{c0}$ process is observed, and the upper limits of Born cross sections $蟽_{B}(e^+e^-\to纬蠂_{c0})$ at 90\% confidence level are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03604v2-abstract-full').style.display = 'none'; document.getElementById('2107.03604v2-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, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 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. Rev. D 104, 092001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.02977">arXiv:2107.02977</a> <span> [<a href="https://arxiv.org/pdf/2107.02977">pdf</a>, <a href="https://arxiv.org/format/2107.02977">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP11(2021)226">10.1007/JHEP11(2021)226 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Branching Fractions of $J/蠄$ and $蠄(3686)$ decays to $危^{+}$ and $\overline危^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (490 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="2107.02977v3-abstract-short" style="display: inline;"> Using $1310.6\times10^{6}$ $J/蠄$ and $448.1\times10^{6}$ $蠄(3686)$ events collected with the BESIII detector, the branching fractions of $J/蠄$ and $蠄(3686)$ decays to $危^{+}\overline危^{-}$ are measured to be $(10.61 \pm 0.04 \pm 0.36) \times 10^{-4}$ and $(2.52 \pm 0.04 \pm 0.09) \times 10^{-4}$, respectively. In addition, the ratio of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.02977v3-abstract-full').style.display = 'inline'; document.getElementById('2107.02977v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.02977v3-abstract-full" style="display: none;"> Using $1310.6\times10^{6}$ $J/蠄$ and $448.1\times10^{6}$ $蠄(3686)$ events collected with the BESIII detector, the branching fractions of $J/蠄$ and $蠄(3686)$ decays to $危^{+}\overline危^{-}$ are measured to be $(10.61 \pm 0.04 \pm 0.36) \times 10^{-4}$ and $(2.52 \pm 0.04 \pm 0.09) \times 10^{-4}$, respectively. In addition, the ratio of $\mathcal{B}(蠄(3686) \rightarrow 危^{+}\overline危^{-})/\mathcal{B}(J/蠄\rightarrow 危^{+}\overline危^{-})$ is determined to be $(23.8 \pm 1.1)\%$ which violates the "$12\%$ rule". <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.02977v3-abstract-full').style.display = 'none'; document.getElementById('2107.02977v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. 2021, 226 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.13536">arXiv:2106.13536</a> <span> [<a href="https://arxiv.org/pdf/2106.13536">pdf</a>, <a href="https://arxiv.org/format/2106.13536">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.L071101">10.1103/PhysRevD.104.L071101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the Decay $D^{+}_{s}\rightarrow 蟺^{+}蟺^{+}蟺^{-}畏$ and Observation of the W-annihilation Decay $D^{+}_{s}\rightarrow a_0(980)^+蟻^0$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (487 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="2106.13536v2-abstract-short" style="display: inline;"> The decay $D^{+}_{s}\rightarrow 蟺^{+}蟺^{+}蟺^{-}畏$ is observed for the first time, using $e^+e^-$ collision data corresponding to an integrated luminosity of 6.32 fb$^{-1}$, collected by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV. The absolute branching fraction for this decay is measured to be… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.13536v2-abstract-full').style.display = 'inline'; document.getElementById('2106.13536v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.13536v2-abstract-full" style="display: none;"> The decay $D^{+}_{s}\rightarrow 蟺^{+}蟺^{+}蟺^{-}畏$ is observed for the first time, using $e^+e^-$ collision data corresponding to an integrated luminosity of 6.32 fb$^{-1}$, collected by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV. The absolute branching fraction for this decay is measured to be $\mathcal{B}(D^+_s \to 蟺^+ 蟺^+ 蟺^- 畏) = (3.12\pm0.13_{\rm stat.}\pm0.09_{\rm syst.})$%. The first amplitude analysis of this decay reveals the sub-structures in $D^{+}_{s}\rightarrow 蟺^{+}蟺^{+}蟺^{-}畏$ and determines the relative fractions and the phases among these sub-structures. The dominant intermediate process is $D^{+}_{s}\rightarrow a_1(1260)^+ 畏, a_1(1260)^+ \rightarrow 蟻(770)^0蟺^+$ with a branching fraction of $(1.73 \pm 0.14_{\rm stat.} \pm 0.08_{\rm syst.})$%. We also observe the W-annihilation process $D^{+}_{s}\rightarrow a_0(980)^+蟻(770)^0$, $a_0(980)^+ \to 蟺^+ 畏$ with a branching fraction of $(0.21\pm0.08_{\rm stat.}\pm0.05_{\rm syst.})$%, which is larger than the branching fractions of other measured pure W-annihilation decays by one order of magnitude. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.13536v2-abstract-full').style.display = 'none'; document.getElementById('2106.13536v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 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. D 104, L071101 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.13442">arXiv:2106.13442</a> <span> [<a href="https://arxiv.org/pdf/2106.13442">pdf</a>, <a href="https://arxiv.org/format/2106.13442">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP11(2021)217">10.1007/JHEP11(2021)217 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the decays $蠂_{cJ}\to n K^{0}_{S}\bar螞+ c.c.$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (490 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="2106.13442v1-abstract-short" style="display: inline;"> By analyzing $4.48\times10^8$ $蠄(3686)$ events collected with the BESIII detector, we observe the decays $蠂_{cJ} \to n K^0_S\bar螞+ c.c.$ ($J=0$, 1, 2) for the first time, via the radiative transition $蠄(3686) \to 纬蠂_{cJ}$. The branching fractions are determined to be $(6.67 \pm 0.26_{\rm stat} \pm 0.41_{\rm syst})\times10^{-4}$, $(1.71 \pm 0.12_{\rm stat} \pm 0.12_{\rm syst})\times10^{-4}$, and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.13442v1-abstract-full').style.display = 'inline'; document.getElementById('2106.13442v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.13442v1-abstract-full" style="display: none;"> By analyzing $4.48\times10^8$ $蠄(3686)$ events collected with the BESIII detector, we observe the decays $蠂_{cJ} \to n K^0_S\bar螞+ c.c.$ ($J=0$, 1, 2) for the first time, via the radiative transition $蠄(3686) \to 纬蠂_{cJ}$. The branching fractions are determined to be $(6.67 \pm 0.26_{\rm stat} \pm 0.41_{\rm syst})\times10^{-4}$, $(1.71 \pm 0.12_{\rm stat} \pm 0.12_{\rm syst})\times10^{-4}$, and $(3.66 \pm 0.17_{\rm stat} \pm 0.23_{\rm syst})\times10^{-4}$ for $J=0$, 1, and 2, respectively. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.13442v1-abstract-full').style.display = 'none'; document.getElementById('2106.13442v1-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 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 4 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/2106.08766">arXiv:2106.08766</a> <span> [<a href="https://arxiv.org/pdf/2106.08766">pdf</a>, <a href="https://arxiv.org/format/2106.08766">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2021.136576">10.1016/j.physletb.2021.136576 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the inclusive branching fraction for $蠄(3686)\rightarrow K_{S}^{0} + \text{anything}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Biernat%2C+J">J Biernat</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (469 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="2106.08766v2-abstract-short" style="display: inline;"> Using 5.9~pb$^{-1}$ of $e^+e^-$ annihilation data collected at center-of-mass energies from 3.640 to 3.701 GeV with the BESIII detector at the BEPCII Collider, we measure the observed cross sections of $e^+e^-\rightarrow K_{S}^{0} X$ (where $X= \text{anything}$). From a fit to these observed cross sections with the sum of continuum and $蠄(3686)$ and $J/蠄$ Breit-Wigner functions and considering ini… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.08766v2-abstract-full').style.display = 'inline'; document.getElementById('2106.08766v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.08766v2-abstract-full" style="display: none;"> Using 5.9~pb$^{-1}$ of $e^+e^-$ annihilation data collected at center-of-mass energies from 3.640 to 3.701 GeV with the BESIII detector at the BEPCII Collider, we measure the observed cross sections of $e^+e^-\rightarrow K_{S}^{0} X$ (where $X= \text{anything}$). From a fit to these observed cross sections with the sum of continuum and $蠄(3686)$ and $J/蠄$ Breit-Wigner functions and considering initial state radiation and the BEPCII beam energy spread, we obtain for the first time the product of $蠄(3686)$ leptonic width and inclusive decay branching fraction $螕^{ee}_{蠄(3686)}\mathcal B(蠄(3686)\rightarrow K_{S}^{0} X) = (373.8 \pm 6.7 \pm 20.0)$ eV, and assuming $螕^{ee}_{蠄(3686)}$ is $(2.33 \pm 0.04)$ keV from PDG value, we measure $\mathcal B(蠄(3686)\rightarrow K_{S}^{0} X) = (16.04 \pm 0.29 \pm 0.90)\%$, where the first uncertainty is statistical and the second is systematic. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.08766v2-abstract-full').style.display = 'none'; document.getElementById('2106.08766v2-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 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. Letts. B 820, 136576(2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.02298">arXiv:2106.02298</a> <span> [<a href="https://arxiv.org/pdf/2106.02298">pdf</a>, <a href="https://arxiv.org/ps/2106.02298">ps</a>, <a href="https://arxiv.org/format/2106.02298">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.032012">10.1103/PhysRevD.104.032012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of Born Cross Sections of $e^+e^-\to D_s^{*+} D_{sJ}^{-} +c.c.$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (489 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="2106.02298v2-abstract-short" style="display: inline;"> The Born cross sections are measured for the first time for the processes $e^+e^-\to D_s^{*+}D_{s0}^*(2317)^- +c.c.$ and $e^+e^-\to D_s^{*+}D_{s1}(2460)^- +c.c.$ at the center-of-mass energy $\sqrt{s}=$ 4.600~GeV, 4.612~GeV, 4.626~GeV, 4.640~GeV, 4.660~GeV, 4.68~GeV, and 4.700~GeV, and for $e^+e^-\to D_s^{*+}D_{s1}(2536)^- +c.c.$ at $\sqrt{s}=$ 4.660~GeV, 4.680~GeV, and 4.700~GeV, using data sampl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02298v2-abstract-full').style.display = 'inline'; document.getElementById('2106.02298v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.02298v2-abstract-full" style="display: none;"> The Born cross sections are measured for the first time for the processes $e^+e^-\to D_s^{*+}D_{s0}^*(2317)^- +c.c.$ and $e^+e^-\to D_s^{*+}D_{s1}(2460)^- +c.c.$ at the center-of-mass energy $\sqrt{s}=$ 4.600~GeV, 4.612~GeV, 4.626~GeV, 4.640~GeV, 4.660~GeV, 4.68~GeV, and 4.700~GeV, and for $e^+e^-\to D_s^{*+}D_{s1}(2536)^- +c.c.$ at $\sqrt{s}=$ 4.660~GeV, 4.680~GeV, and 4.700~GeV, using data samples collected with the BESIII detector at the BEPCII collider. No structures are observed in cross-section distributions for any of the processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02298v2-abstract-full').style.display = 'none'; document.getElementById('2106.02298v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 2 figures, some text corrections, accepted for publication in Physical Review D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 032012 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.02292">arXiv:2106.02292</a> <span> [<a href="https://arxiv.org/pdf/2106.02292">pdf</a>, <a href="https://arxiv.org/ps/2106.02292">ps</a>, <a href="https://arxiv.org/format/2106.02292">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.L091103">10.1103/PhysRevD.104.L091103 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the Decay $D^0\to 蟻^-渭^+谓_渭$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (489 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="2106.02292v2-abstract-short" style="display: inline;"> By analyzing an $e^+e^-$ annihilation data sample corresponding to an integrated luminosity of $2.93~\mathrm{fb}^{-1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the branching fraction of the $D^0\to 蟻^- 渭^+谓_渭$ decay for the first time. We obtain ${\mathcal B}_{D^0\to 蟻^- 渭^+谓_渭}=(1.35\pm0.09_{\rm stat}\pm0.09_{\rm syst})\times 10^{-3}$. Using the world… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02292v2-abstract-full').style.display = 'inline'; document.getElementById('2106.02292v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.02292v2-abstract-full" style="display: none;"> By analyzing an $e^+e^-$ annihilation data sample corresponding to an integrated luminosity of $2.93~\mathrm{fb}^{-1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the branching fraction of the $D^0\to 蟻^- 渭^+谓_渭$ decay for the first time. We obtain ${\mathcal B}_{D^0\to 蟻^- 渭^+谓_渭}=(1.35\pm0.09_{\rm stat}\pm0.09_{\rm syst})\times 10^{-3}$. Using the world average of ${\mathcal B}_{D^0\to 蟻^- e^+谓_e}$, we find a branching fraction ratio of ${\mathcal B}_{D^0\to 蟻^- 渭^+谓_渭}/{\mathcal B}_{D^0\to 蟻^- e^+谓_e}=0.90\pm0.11$, which agrees with the theoretical expectation of lepton flavor universality within the uncertainty. Combining the world average of ${\mathcal B}_{D^+\to 蟻^0 渭^+ 谓_渭}$ and the lifetimes of $D^{0(+)}$, we obtain a partial decay width ratio of $螕_{D^0\to 蟻^- 渭^+ 谓_渭}/(2螕_{D^+\to 蟻^0 渭^+ 谓_渭}) = 0.71\pm0.14$, which is consistent with the isospin symmetry expectation of one within $2.1蟽$. For the reported values of ${\mathcal B}_{D^0\to 蟻^- 渭^+谓_渭}/{\mathcal B}_{D^0\to 蟻^- e^+谓_e}$ and $螕_{D^0\to 蟻^- 渭^+ 谓_渭}/2螕_{D^+\to 蟻^0 渭^+ 谓_渭}$, the uncertainty is the quadratic sum of the statistical and systematic uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02292v2-abstract-full').style.display = 'none'; document.getElementById('2106.02292v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">9 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> BAM-00467 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, L091103 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.02218">arXiv:2106.02218</a> <span> [<a href="https://arxiv.org/pdf/2106.02218">pdf</a>, <a href="https://arxiv.org/ps/2106.02218">ps</a>, <a href="https://arxiv.org/format/2106.02218">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.127.171801">10.1103/PhysRevLett.127.171801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the Absolute Branching Fraction of $D_s^+ \to 蟿^+ 谓_蟿$ via $蟿^+ \to e^+ 谓_e \bar谓_蟿$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (493 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="2106.02218v2-abstract-short" style="display: inline;"> Using a dataset of 6.32 fb$^{-1}$ of $e^+ e^-$ annihilation data collected with the BESIII detector at center-of-mass energies between 4178 and 4226 MeV, we have measured the absolute branching fraction of the leptonic decay $D_s^+ \to 蟿^+ 谓_蟿$ via $蟿^+ \to e^+ 谓_e \bar谓_蟿$, and find $\mathcal{B}_{D_s^+ \to 蟿^+ 谓_蟿}=(5.27\pm0.10\pm0.12)\times10^{-2}$, where the first uncertainty is statistical and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02218v2-abstract-full').style.display = 'inline'; document.getElementById('2106.02218v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.02218v2-abstract-full" style="display: none;"> Using a dataset of 6.32 fb$^{-1}$ of $e^+ e^-$ annihilation data collected with the BESIII detector at center-of-mass energies between 4178 and 4226 MeV, we have measured the absolute branching fraction of the leptonic decay $D_s^+ \to 蟿^+ 谓_蟿$ via $蟿^+ \to e^+ 谓_e \bar谓_蟿$, and find $\mathcal{B}_{D_s^+ \to 蟿^+ 谓_蟿}=(5.27\pm0.10\pm0.12)\times10^{-2}$, where the first uncertainty is statistical and the second is systematic. The precision is improved by a factor of 2 compared to the previous best measurement. Combining with $f_{D_s^+}$ from Lattice quantum chromodynamics calculations or the $|V_{cs}|$ from the CKMfitter group, we extract $|V_{cs}|=0.978\pm0.009\pm0.012$ and $f_{D_s^+}= (251.1\pm2.4\pm3.0)$ MeV, respectively. Combining our result with the world averages of $\mathcal{B}_{D_s^+ \to 蟿^+ 谓_蟿}$ and $\mathcal{B}_{D_s^+ \to 渭^+ 谓_渭}$, we obtain the ratio of the branching fractions $\mathcal{B}_{D_s^+ \to 蟿^+ 谓_蟿} / \mathcal{B}_{D_s^+ \to 渭^+ 谓_渭} = 9.72\pm0.37$, which is consistent with the standard model prediction of lepton flavor universality. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.02218v2-abstract-full').style.display = 'none'; document.getElementById('2106.02218v2-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 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 2 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. 127, 171801 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.14657">arXiv:2105.14657</a> <span> [<a href="https://arxiv.org/pdf/2105.14657">pdf</a>, <a href="https://arxiv.org/ps/2105.14657">ps</a>, <a href="https://arxiv.org/format/2105.14657">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.physletb.2021.136557">10.1016/j.physletb.2021.136557 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of cross section for $e^{+}e^{-}\rightarrow螢^{0}\bar螢^{0}$ near threshold </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (497 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="2105.14657v2-abstract-short" style="display: inline;"> Using $e^+e^-$ collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb$^{-1}$, we measure the cross sections and effective form factors for the process $e^{+}e^{-}\rightarrow螢^{0}\bar螢^{0}$ utilizing a single-tag method. A fit to the cross section of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14657v2-abstract-full').style.display = 'inline'; document.getElementById('2105.14657v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.14657v2-abstract-full" style="display: none;"> Using $e^+e^-$ collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb$^{-1}$, we measure the cross sections and effective form factors for the process $e^{+}e^{-}\rightarrow螢^{0}\bar螢^{0}$ utilizing a single-tag method. A fit to the cross section of $e^{+}e^{-}\rightarrow螢^{0}\bar螢^{0}$ with a pQCD-driven power function is performed, from which no significant resonance or threshold enhancement is observed. In addition, the ratio of cross sections for the processes $e^{+}e^{-}\rightarrow螢^{-}\bar螢^{+}$ and $螢^{0}\bar螢^{0}$ is calculated using recent BESIII measurement and is found to be compatible with expectation from isospin symmetry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14657v2-abstract-full').style.display = 'none'; document.getElementById('2105.14657v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 5 figures. Consistent with paper published in Phys. Lett. B 820 (2021) 136557</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Lett. B 820 (2021) 136557 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.14310">arXiv:2105.14310</a> <span> [<a href="https://arxiv.org/pdf/2105.14310">pdf</a>, <a href="https://arxiv.org/ps/2105.14310">ps</a>, <a href="https://arxiv.org/format/2105.14310">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the doubly Cabibbo-suppressed decay $D^+\to K^+蟺^+蟺^-蟺^0$ with semileptonic tags </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (489 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="2105.14310v1-abstract-short" style="display: inline;"> Using an $e^+e^-$ annihilation data sample corresponding to an integrated luminosity of $2.93\,\rm fb^{-1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the doubly Cabibbo-suppressed decay $D^+\to K^+蟺^+蟺^-蟺^0$ is studied with a semileptonic tag method. After removing the decays containing narrow intermediate resonances, $D^+\to K^+畏$, $D^+\to K^+蠅$, and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14310v1-abstract-full').style.display = 'inline'; document.getElementById('2105.14310v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.14310v1-abstract-full" style="display: none;"> Using an $e^+e^-$ annihilation data sample corresponding to an integrated luminosity of $2.93\,\rm fb^{-1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the doubly Cabibbo-suppressed decay $D^+\to K^+蟺^+蟺^-蟺^0$ is studied with a semileptonic tag method. After removing the decays containing narrow intermediate resonances, $D^+\to K^+畏$, $D^+\to K^+蠅$, and $D^+\to K^+蠁$, the branching fraction for the decay $D^+\to K^+蟺^+蟺^-蟺^0$ is determined to be $(1.03 \pm 0.12_{\rm stat} \pm 0.06_{\rm syst})\times 10^{-3}$. The ratio of the branching fraction for $D^+\to K^+蟺^+蟺^-蟺^0$ to its Cabibbo-favored counterpart $D^+\to K^-蟺^+蟺^+蟺^0$ is measured to be $ (1.65\pm0.21)\%$, corresponding to $(5.73\pm0.73)\tan^4胃_C$, where $胃_C$ is the Cabibbo mixing angle. These results are consistent with our previous measurement with hadronic tags but are significantly larger than other doubly Cabibbo-suppressed decays in the charm sector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.14310v1-abstract-full').style.display = 'none'; document.getElementById('2105.14310v1-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.13597">arXiv:2105.13597</a> <span> [<a href="https://arxiv.org/pdf/2105.13597">pdf</a>, <a href="https://arxiv.org/ps/2105.13597">ps</a>, <a href="https://arxiv.org/format/2105.13597">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.092014">10.1103/PhysRevD.104.092014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cross section measurement of $e^{+}e^{-} \to K_{S}^{0}K_{L}^{0}$ at $\sqrt{s}=2.00-3.08~{\rm GeV}$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anita"> Anita</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Biernat%2C+J">J Biernat</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (468 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="2105.13597v1-abstract-short" style="display: inline;"> The cross sections of the process $e^{+}e^{-} \to K_{S}^{0}K_{L}^{0}$ are measured at fifteen center-of-mass energies $\sqrt{s}$ from $2.00$ to $3.08~{\rm GeV}$ with the BESIII detector at the Beijing Electron Positron Collider (BEPCII). The results are found to be consistent with those obtained by BaBar. A resonant structure around $2.2~{\rm GeV}$ is observed, with a mass and width of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.13597v1-abstract-full').style.display = 'inline'; document.getElementById('2105.13597v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.13597v1-abstract-full" style="display: none;"> The cross sections of the process $e^{+}e^{-} \to K_{S}^{0}K_{L}^{0}$ are measured at fifteen center-of-mass energies $\sqrt{s}$ from $2.00$ to $3.08~{\rm GeV}$ with the BESIII detector at the Beijing Electron Positron Collider (BEPCII). The results are found to be consistent with those obtained by BaBar. A resonant structure around $2.2~{\rm GeV}$ is observed, with a mass and width of $2273.7 \pm 5.7 \pm 19.3~{\rm MeV}/c^2$ and $86 \pm 44 \pm 51~{\rm MeV}$, respectively, where the first uncertainties are statistical and the second ones are systematic. The product of its radiative width ($螕_{e^+e^-}$) with its branching fraction to $K_{S}^{0}K_{L}^{0}$ ($Br_{K_{S}^{0}K_{L}^{0}}$) is $0.9 \pm 0.6 \pm 0.7~{\rm eV}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.13597v1-abstract-full').style.display = 'none'; document.getElementById('2105.13597v1-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, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 092014 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.11155">arXiv:2105.11155</a> <span> [<a href="https://arxiv.org/pdf/2105.11155">pdf</a>, <a href="https://arxiv.org/format/2105.11155">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41586-022-04624-1">10.1038/s41586-022-04624-1 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Weak phases and CP-symmetry tests in sequential decays of entangled double-strange baryons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Biernat%2C+J">J. Biernat</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (494 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="2105.11155v1-abstract-short" style="display: inline;"> Using a sample of $1.31\times10^9$ $J/蠄$ events collected with the BESIII detector at the electron-positron collider BEPCII, we analyse the full $J/蠄\to$ $螢^-\overline螢^+$, $螢^-\to 螞蟺^-$, $螞\to p蟺^-$, $\overline螢^+\to\overline螞蟺^+$, $\overline螞\to\overline{p}蟺^+$ decay chain. A new method, exploiting the fact that the $螢^-\overline螢^+$ pair is entangled and sequentially decaying, and where the com… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.11155v1-abstract-full').style.display = 'inline'; document.getElementById('2105.11155v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.11155v1-abstract-full" style="display: none;"> Using a sample of $1.31\times10^9$ $J/蠄$ events collected with the BESIII detector at the electron-positron collider BEPCII, we analyse the full $J/蠄\to$ $螢^-\overline螢^+$, $螢^-\to 螞蟺^-$, $螞\to p蟺^-$, $\overline螢^+\to\overline螞蟺^+$, $\overline螞\to\overline{p}蟺^+$ decay chain. A new method, exploiting the fact that the $螢^-\overline螢^+$ pair is entangled and sequentially decaying, and where the complete decay chains are reconstructed, is applied for the first time. This enables precision measurements of the decay parameters for the $螢^-\to螞蟺^-$ decay ($伪_螢$, $蠁_螢$) as well as the $\overline螢^+\to\overline螞蟺^+$ decay ($\overline伪_螢$, $\overline蠁_螢$). From the decay parameters, two independent CP tests were performed, quantified by the observables $A_{\rm CP}^螢$ and $螖蠁_螢$. Our results, $A_{\rm CP}^螢$ = $(6.0\pm13.4\pm5.6)\times10^{-3}$ and $螖蠁_螢= (-4.8\pm13.7\pm2.9)\times10^{-3}~{\rm rad}$, are consistent with CP symmetry. Furthermore, our method enables a separation of strong and weak $螢\to螞蟺$ decay amplitudes. This results in the first direct measurement of the weak phase difference for any baryon decay. The result is found to be $(尉_{P} - 尉_{S}) = (1.2\pm3.4\pm0.8)\times10^{-2}$ rad and is one of the most precise tests of CP symmetry for strange baryons. The strong phase difference is measured to be $(未_P - 未_S) = (-4.0\pm3.3\pm1.7)\times10^{-2}$ rad. In addition, we provide an independent measurement of the recently debated $螞$ decay parameter, $伪_螞 = 0.757 \pm 0.011 \pm 0.008 $. The $螞\overline螞$ asymmetry is measured to be $A_{\rm CP}^螞 = (-3.7\pm11.7\pm9.0)\times10^{-3}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.11155v1-abstract-full').style.display = 'none'; document.getElementById('2105.11155v1-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 4 figures and 5 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature 606, 64-69 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2105.07178">arXiv:2105.07178</a> <span> [<a href="https://arxiv.org/pdf/2105.07178">pdf</a>, <a href="https://arxiv.org/ps/2105.07178">ps</a>, <a href="https://arxiv.org/format/2105.07178">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.032001">10.1103/PhysRevD.104.032001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the branching fraction of leptonic decay $D_s^+\to蟿^+谓_蟿$ via $蟿^+\to蟺^+蟺^0\bar 谓_蟿$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/hep-ex?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (492 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="2105.07178v2-abstract-short" style="display: inline;"> By analyzing $6.32~\mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data collected at the center-of-mass energies between 4.178 and 4.226\,GeV with the BESIII detector, we determine the branching fraction of the leptonic decay $D_s^+\to蟿^+谓_蟿$ with $蟿^+\to蟺^+蟺^0\bar 谓_蟿$, to be $\mathcal{B}_{D_s^+\to蟿^+谓_蟿}=(5.29\pm0.25_{\rm stat}\pm0.20_{\rm syst})\%$. We estimate the product of the Cabibbo-Kobayashi-M… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.07178v2-abstract-full').style.display = 'inline'; document.getElementById('2105.07178v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.07178v2-abstract-full" style="display: none;"> By analyzing $6.32~\mathrm{fb}^{-1}$ of $e^+e^-$ annihilation data collected at the center-of-mass energies between 4.178 and 4.226\,GeV with the BESIII detector, we determine the branching fraction of the leptonic decay $D_s^+\to蟿^+谓_蟿$ with $蟿^+\to蟺^+蟺^0\bar 谓_蟿$, to be $\mathcal{B}_{D_s^+\to蟿^+谓_蟿}=(5.29\pm0.25_{\rm stat}\pm0.20_{\rm syst})\%$. We estimate the product of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cs}|$ and the $D_s^+$ decay constant $f_{D^+_s}$ to be $f_{D_s^+}|V_{cs}|=(244.8\pm5.8_{\rm stat}\pm4.8_{\rm syst})~\mathrm{MeV}$ using the known values of the $蟿^+$ and $D_s^+$ masses as well as the $D_s^+$ lifetime, together with our branching fraction measurement. Combining with the value of $|V_{cs}|$ obtained from a global fit in the standard model and $f_{D_s^+}$ from lattice quantum chromodynamics, we obtain $f_{D_s^+}=(251.6\pm5.9_{\rm stat}\pm4.9_{\rm syst})$\,MeV and $|V_{cs}| = 0.980\pm0.023_{\rm stat}\pm0.019_{\rm syst}$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.07178v2-abstract-full').style.display = 'none'; document.getElementById('2105.07178v2-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 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 032001 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.09131">arXiv:2104.09131</a> <span> [<a href="https://arxiv.org/pdf/2104.09131">pdf</a>, <a href="https://arxiv.org/ps/2104.09131">ps</a>, <a href="https://arxiv.org/format/2104.09131">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> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.104.012006">10.1103/PhysRevD.104.012006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the decay $D^+\to K^*(892)^+ K_S^0$ in $D^+\to K^+ K_S^0 蟺^0$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=BESIII+Collaboration"> BESIII Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/hep-ex?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/hep-ex?searchtype=author&query=Adlarson%2C+P">P. Adlarson</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/hep-ex?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/hep-ex?searchtype=author&query=Aliberti%2C+R">R. Aliberti</a>, <a href="/search/hep-ex?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+M+R">M. R. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+X+H">X. H. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+Y">Y. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/hep-ex?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/hep-ex?searchtype=author&query=Balossino%2C+I">I. Balossino</a>, <a href="/search/hep-ex?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/hep-ex?searchtype=author&query=Begzsuren%2C+K">K. Begzsuren</a>, <a href="/search/hep-ex?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/hep-ex?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/hep-ex?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/hep-ex?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/hep-ex?searchtype=author&query=Bloms%2C+J">J. Bloms</a>, <a href="/search/hep-ex?searchtype=author&query=Bortone%2C+A">A. Bortone</a>, <a href="/search/hep-ex?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/hep-ex?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a> , et al. (492 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="2104.09131v3-abstract-short" style="display: inline;"> Based on an $e^{+}e^{-}$ collision data sample corresponding to an integrated luminosity of 2.93 $\mathrm{fb}^{-1}$ collected with the BESIII detector at $\sqrt{s}=3.773 \mathrm{GeV}$, the first amplitude analysis of the singly Cabibbo-suppressed decay $D^{+}\to K^+ K_S^0 蟺^0$ is performed. From the amplitude analysis, the $K^*(892)^+ K_S^0$ component is found to be dominant with a fraction of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.09131v3-abstract-full').style.display = 'inline'; document.getElementById('2104.09131v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.09131v3-abstract-full" style="display: none;"> Based on an $e^{+}e^{-}$ collision data sample corresponding to an integrated luminosity of 2.93 $\mathrm{fb}^{-1}$ collected with the BESIII detector at $\sqrt{s}=3.773 \mathrm{GeV}$, the first amplitude analysis of the singly Cabibbo-suppressed decay $D^{+}\to K^+ K_S^0 蟺^0$ is performed. From the amplitude analysis, the $K^*(892)^+ K_S^0$ component is found to be dominant with a fraction of $(57.1\pm2.6\pm4.2)\%$, where the first uncertainty is statistical and the second systematic. In combination with the absolute branching fraction $\mathcal{B}(D^+\to K^+ K_S^0 蟺^0)$ measured by BESIII, we obtain $\mathcal{B}(D^+\to K^*(892)^+ K_S^0)=(8.69\pm0.40\pm0.64\pm0.51)\times10^{-3}$, where the third uncertainty is due to the branching fraction $\mathcal{B}(D^+\to K^+ K_S^0 蟺^0)$. The precision of this result is significantly improved compared to the previous measurement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.09131v3-abstract-full').style.display = 'none'; document.getElementById('2104.09131v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 15 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 104, 012006 (2021) </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Luo%2C+W&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Luo%2C+W&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Luo%2C+W&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Luo%2C+W&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> <li> <a href="/search/?searchtype=author&query=Luo%2C+W&start=150" class="pagination-link " aria-label="Page 4" aria-current="page">4 </a> </li> </ul> </nav> <div class="is-hidden-tablet">  <span class="help" style="display: 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