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type="radio" value="hide"> <label for="abstracts-1">Hide abstracts</label></li></ul> </div> <div class="box field is-grouped is-grouped-multiline level-item"> <div class="control"> <span class="select is-small"> <select id="size" name="size"><option value="25">25</option><option selected value="50">50</option><option value="100">100</option><option value="200">200</option></select> </span> <label for="size">results per page</label>. </div> <div class="control"> <label for="order">Sort results by</label> <span class="select is-small"> <select id="order" name="order"><option selected value="-announced_date_first">Announcement date (newest first)</option><option value="announced_date_first">Announcement date (oldest first)</option><option value="-submitted_date">Submission date (newest first)</option><option value="submitted_date">Submission date (oldest first)</option><option value="">Relevance</option></select> </span> </div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.15973">arXiv:2406.15973</a> <span> [<a href="https://arxiv.org/pdf/2406.15973">pdf</a>, <a href="https://arxiv.org/ps/2406.15973">ps</a>, <a href="https://arxiv.org/format/2406.15973">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"> Performance of the plastic scintillator modules for the top veto tracker of the Taishan Antineutrino Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/physics?searchtype=author&query=Yin%2C+X">Xiaohao Yin</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Zhimin Wang</a>, <a href="/search/physics?searchtype=author&query=Hor%2C+Y+K">Y. K. Hor</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+P">Peizhi Lu</a>, <a href="/search/physics?searchtype=author&query=Li%2C+R">Ruhui Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+Y">Yichen Li</a>, <a href="/search/physics?searchtype=author&query=He%2C+W">Wei He</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+W">Wei Wang</a>, <a href="/search/physics?searchtype=author&query=Xiao%2C+X">Xiang Xiao</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="2406.15973v1-abstract-short" style="display: inline;"> For tracking and tagging the cosmic-ray muon (CR-muon), the Taishan Antineutrino Observatory (TAO) experiment is equipped with a top veto tracker (TVT) system composed of 160 modules, each consisting of plastic scintillator (PS) strip as target material, embedded wavelength shifting fiber (WLS-fiber) as photon collection and transmission medium, and silicon photomultipliers (SiPMs) at both ends as… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.15973v1-abstract-full').style.display = 'inline'; document.getElementById('2406.15973v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.15973v1-abstract-full" style="display: none;"> For tracking and tagging the cosmic-ray muon (CR-muon), the Taishan Antineutrino Observatory (TAO) experiment is equipped with a top veto tracker (TVT) system composed of 160 modules, each consisting of plastic scintillator (PS) strip as target material, embedded wavelength shifting fiber (WLS-fiber) as photon collection and transmission medium, and silicon photomultipliers (SiPMs) at both ends as read-out. This article introduces the unique design of the module and reports the excellent performance of all modules, providing guidance and important reference for the process design of scintillation detectors with WLS-fibers. In general, when the CR-muon hits the center of plastic scintillator and without optical grease, the most probable value of the signal amplitude at one end of the PS strip is greater than 40.8 p.e. and 51.5 p.e. for all the 2 m-length modules and 1.5 m-length modules respectively. The CR-muon tagging efficiency of PS module is measured to be more than 99.3%, which meets the requirement of TAO. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.15973v1-abstract-full').style.display = 'none'; document.getElementById('2406.15973v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.17860">arXiv:2405.17860</a> <span> [<a href="https://arxiv.org/pdf/2405.17860">pdf</a>, <a href="https://arxiv.org/format/2405.17860">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/10.1088/1674-1137/ad83aa">10.1088/1674-1137/ad83aa <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Prediction of Energy Resolution in the JUNO Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Adamowicz%2C+K">Kai Adamowicz</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/physics?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">Marco Beretta</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Bick%2C+D">Daniel Bick</a> , et al. (629 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="2405.17860v2-abstract-short" style="display: inline;"> This paper presents an energy resolution study of the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3\% at 1~MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components o… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17860v2-abstract-full').style.display = 'inline'; document.getElementById('2405.17860v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.17860v2-abstract-full" style="display: none;"> This paper presents an energy resolution study of the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3\% at 1~MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of the liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The results of study reveal an energy resolution of 2.95\% at 1~MeV. Furthermore, this study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data collection. Moreover, it provides a guideline for comprehending the energy resolution characteristics of liquid scintillator-based detectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.17860v2-abstract-full').style.display = 'none'; document.getElementById('2405.17860v2-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 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 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">Journal ref:</span> Chinese Phys. C 49 013003 (2025) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.17507">arXiv:2305.17507</a> <span> [<a href="https://arxiv.org/pdf/2305.17507">pdf</a>, <a href="https://arxiv.org/format/2305.17507">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> Spectroscopy of momentum state lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Paladugu%2C+S+N+M">Sai Naga Manoj Paladugu</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+T">Tao Chen</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Yan%2C+B">Bo Yan</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="2305.17507v1-abstract-short" style="display: inline;"> We explore a technique for probing energy spectra in synthetic lattices that is analogous to scanning tunneling microscopy. Using one-dimensional synthetic lattices of coupled atomic momentum states, we explore this spectroscopic technique and observe qualitative agreement between the measured and simulated energy spectra for small two- and three-site lattices as well as a uniform many-site lattic… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.17507v1-abstract-full').style.display = 'inline'; document.getElementById('2305.17507v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.17507v1-abstract-full" style="display: none;"> We explore a technique for probing energy spectra in synthetic lattices that is analogous to scanning tunneling microscopy. Using one-dimensional synthetic lattices of coupled atomic momentum states, we explore this spectroscopic technique and observe qualitative agreement between the measured and simulated energy spectra for small two- and three-site lattices as well as a uniform many-site lattice. Finally, through simulations, we show that this technique should allow for the exploration of the topological bands and the fractal energy spectrum of the Hofstadter model as realized in synthetic lattices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.17507v1-abstract-full').style.display = 'none'; document.getElementById('2305.17507v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">9 pages, 5 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/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/physics?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/physics?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/physics?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?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/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/physics?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/physics?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?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/2302.12669">arXiv:2302.12669</a> <span> [<a href="https://arxiv.org/pdf/2302.12669">pdf</a>, <a href="https://arxiv.org/format/2302.12669">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> </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/s41365-023-01263-7">10.1007/s41365-023-01263-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Design optimization of JUNO-TAO plastic scintillator with WLS-fiber and SiPM readout </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/physics?searchtype=author&query=Hor%2C+Y+K">Y. K. Hor</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+P">Peizhi Lu</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Zhimin Wang</a>, <a href="/search/physics?searchtype=author&query=Li%2C+R">Ruhui Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+M">Min Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+Y">Yichen Li</a>, <a href="/search/physics?searchtype=author&query=Zhan%2C+L">Liang Zhan</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+W">Wei Wang</a>, <a href="/search/physics?searchtype=author&query=Wei%2C+Y">Yuehuan Wei</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Yu Chen</a>, <a href="/search/physics?searchtype=author&query=Xiao%2C+X">Xiang Xiao</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</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="2302.12669v2-abstract-short" style="display: inline;"> Plastic scintillators (PSs)embedded with wavelength-shifting fibers are widely used in high-energy particle physics, such as in muon taggers,as well as in medical physics and other applications. In this study,a simulation package was built to evaluate the effects of the diameter and layout of optical fibers on the light yield with different configurations. The optimal optical configuration was des… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.12669v2-abstract-full').style.display = 'inline'; document.getElementById('2302.12669v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.12669v2-abstract-full" style="display: none;"> Plastic scintillators (PSs)embedded with wavelength-shifting fibers are widely used in high-energy particle physics, such as in muon taggers,as well as in medical physics and other applications. In this study,a simulation package was built to evaluate the effects of the diameter and layout of optical fibers on the light yield with different configurations. The optimal optical configuration was designed based on simulations and validated using two PS prototypes under certain experimental conditions. Atop veto tracker (TVT) for the JUNO-TAO experiment, comprising four layers of 160 strips of PS, was designed and evaluated. The threshold was evaluated when the muon tagging efficiency of a PS strip was >99%. The efficiency of three layer out of four layer of TVT is >99%,even with a tagging efficiency of a single strip as low as 97%, using a threshold of 10 photoelectrons and assuming a 40%silicon PM photon detection efficiency. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.12669v2-abstract-full').style.display = 'none'; document.getElementById('2302.12669v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> NUCL SCI TECH 34, 99 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.10741">arXiv:2212.10741</a> <span> [<a href="https://arxiv.org/pdf/2212.10741">pdf</a>, <a href="https://arxiv.org/format/2212.10741">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/10.1140/epjc/s10052-023-11514-x">10.1140/epjc/s10052-023-11514-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Simulation Software of the JUNO Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lin%2C+T">Tao Lin</a>, <a href="/search/physics?searchtype=author&query=Hu%2C+Y">Yuxiang Hu</a>, <a href="/search/physics?searchtype=author&query=Yu%2C+M">Miao Yu</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+H">Haosen Zhang</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S+C">Simon Charles Blyth</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Y">Yaoguang Wang</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+H">Haoqi Lu</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">Cecile Jollet</a>, <a href="/search/physics?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/physics?searchtype=author&query=Deng%2C+Z">Ziyan Deng</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G">Guofu Cao</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=Chimenti%2C+P">Pietro Chimenti</a>, <a href="/search/physics?searchtype=author&query=Fang%2C+X">Xiao Fang</a>, <a href="/search/physics?searchtype=author&query=Guo%2C+Y">Yuhang Guo</a>, <a href="/search/physics?searchtype=author&query=Huang%2C+W">Wenhao Huang</a>, <a href="/search/physics?searchtype=author&query=Huang%2C+X">Xingtao Huang</a>, <a href="/search/physics?searchtype=author&query=Li%2C+R">Rui Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+T">Teng Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+W">Weidong Li</a>, <a href="/search/physics?searchtype=author&query=Li%2C+X">Xinying Li</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y">Yankai Liu</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">Anselmo Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Qian%2C+Z">Zhen Qian</a>, <a href="/search/physics?searchtype=author&query=Ren%2C+Y">Yuhan Ren</a> , et al. (9 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="2212.10741v2-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose experiment, under construction in southeast China, that is designed to determine the neutrino mass ordering and precisely measure neutrino oscillation parameters. Monte Carlo simulation plays an important role for JUNO detector design, detector commissioning, offline data processing, and physics processing. The JUNO experiment… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.10741v2-abstract-full').style.display = 'inline'; document.getElementById('2212.10741v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.10741v2-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose experiment, under construction in southeast China, that is designed to determine the neutrino mass ordering and precisely measure neutrino oscillation parameters. Monte Carlo simulation plays an important role for JUNO detector design, detector commissioning, offline data processing, and physics processing. The JUNO experiment has the world's largest liquid scintillator detector instrumented with many thousands of PMTs. The broad energy range of interest, long lifetime, and the large scale present data processing challenges across all areas. This paper describes the JUNO simulation software, highlighting the challenges of JUNO simulation and solutions to meet these challenges, including such issues as support for time-correlated analysis, event mixing, event correlation and handling the simulation of many millions of optical photons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.10741v2-abstract-full').style.display = 'none'; document.getElementById('2212.10741v2-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 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">Journal ref:</span> Eur. Phys. J. C 83, 382 (2023) </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/physics?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</a>, <a href="/search/physics?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/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=Aleem%2C+A">Abid Aleem</a>, <a href="/search/physics?searchtype=author&query=Alexandros%2C+T">Tsagkarakis Alexandros</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?searchtype=author&query=de+Andre%2C+J+P+A+M">Joao Pedro Athayde Marcondes de Andre</a>, <a href="/search/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+W">Weidong Bai</a>, <a href="/search/physics?searchtype=author&query=Balashov%2C+N">Nikita Balashov</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?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/2107.03669">arXiv:2107.03669</a> <span> [<a href="https://arxiv.org/pdf/2107.03669">pdf</a>, <a href="https://arxiv.org/format/2107.03669">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> </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)102">10.1007/JHEP11(2021)102 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Radioactivity control strategy for the JUNO detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+collaboration"> JUNO collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</a>, <a href="/search/physics?searchtype=author&query=Blin%2C+S">Sylvie Blin</a> , et al. (578 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="2107.03669v2-abstract-short" style="display: inline;"> JUNO is a massive liquid scintillator detector with a primary scientific goal of determining the neutrino mass ordering by studying the oscillated anti-neutrino flux coming from two nuclear power plants at 53 km distance. The expected signal anti-neutrino interaction rate is only 60 counts per day, therefore a careful control of the background sources due to radioactivity is critical. In particula… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03669v2-abstract-full').style.display = 'inline'; document.getElementById('2107.03669v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.03669v2-abstract-full" style="display: none;"> JUNO is a massive liquid scintillator detector with a primary scientific goal of determining the neutrino mass ordering by studying the oscillated anti-neutrino flux coming from two nuclear power plants at 53 km distance. The expected signal anti-neutrino interaction rate is only 60 counts per day, therefore a careful control of the background sources due to radioactivity is critical. In particular, natural radioactivity present in all materials and in the environment represents a serious issue that could impair the sensitivity of the experiment if appropriate countermeasures were not foreseen. In this paper we discuss the background reduction strategies undertaken by the JUNO collaboration to reduce at minimum the impact of natural radioactivity. We describe our efforts for an optimized experimental design, a careful material screening and accurate detector production handling, and a constant control of the expected results through a meticulous Monte Carlo simulation program. We show that all these actions should allow us to keep the background count rate safely below the target value of 10 Hz in the default fiducial volume, above an energy threshold of 0.7 MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.03669v2-abstract-full').style.display = 'none'; document.getElementById('2107.03669v2-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 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">35 pages, 12 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/2105.04429">arXiv:2105.04429</a> <span> [<a href="https://arxiv.org/pdf/2105.04429">pdf</a>, <a href="https://arxiv.org/format/2105.04429">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Pattern Formation and Solitons">nlin.PS</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.127.130401">10.1103/PhysRevLett.127.130401 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nonlinear dynamics in a synthetic momentum state lattice </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Sundar%2C+B">Bhuvanesh Sundar</a>, <a href="/search/physics?searchtype=author&query=Hou%2C+J">Junpeng Hou</a>, <a href="/search/physics?searchtype=author&query=Luo%2C+X">Xi-Wang Luo</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+C">Chuanwei Zhang</a>, <a href="/search/physics?searchtype=author&query=Hazzard%2C+K+R+A">Kaden R. A. Hazzard</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="2105.04429v1-abstract-short" style="display: inline;"> The scope of analog simulation in atomic, molecular, and optical systems has expanded greatly over the past decades. Recently, the idea of synthetic dimensions -- in which transport occurs in a space spanned by internal or motional states coupled by field-driven transitions -- has played a key role in this expansion. While approaches based on synthetic dimensions have led to rapid advances in sing… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.04429v1-abstract-full').style.display = 'inline'; document.getElementById('2105.04429v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.04429v1-abstract-full" style="display: none;"> The scope of analog simulation in atomic, molecular, and optical systems has expanded greatly over the past decades. Recently, the idea of synthetic dimensions -- in which transport occurs in a space spanned by internal or motional states coupled by field-driven transitions -- has played a key role in this expansion. While approaches based on synthetic dimensions have led to rapid advances in single-particle Hamiltonian engineering, strong interaction effects have been conspicuously absent from most synthetic dimensions platforms. Here, in a lattice of coupled atomic momentum states, we show that atomic interactions result in large and qualitative changes to dynamics in the synthetic dimension. We explore how the interplay of nonlinear interactions and coherent tunneling enriches the dynamics of a one-band tight-binding model, giving rise to macroscopic self-trapping and phase-driven Josephson dynamics with a nonsinusoidal current-phase relationship, which can be viewed as stemming from a nonlinear band structure arising from interactions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.04429v1-abstract-full').style.display = 'none'; document.getElementById('2105.04429v1-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 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">6 pages, 3 figures, 3 pages of supplementary material</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, 130401 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.16900">arXiv:2103.16900</a> <span> [<a href="https://arxiv.org/pdf/2103.16900">pdf</a>, <a href="https://arxiv.org/format/2103.16900">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> </div> </div> <p class="title is-5 mathjax"> The Design and Sensitivity of JUNO's scintillator radiopurity pre-detector OSIRIS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">Guangpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Basilico%2C+D">Davide Basilico</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</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="2103.16900v1-abstract-short" style="display: inline;"> The OSIRIS detector is a subsystem of the liquid scintillator fillling chain of the JUNO reactor neutrino experiment. Its purpose is to validate the radiopurity of the scintillator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scintillator is filled into the JUNO Central Detector. The aspired sensitivity level of $10^{-16}$ g/g of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.16900v1-abstract-full').style.display = 'inline'; document.getElementById('2103.16900v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.16900v1-abstract-full" style="display: none;"> The OSIRIS detector is a subsystem of the liquid scintillator fillling chain of the JUNO reactor neutrino experiment. Its purpose is to validate the radiopurity of the scintillator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scintillator is filled into the JUNO Central Detector. The aspired sensitivity level of $10^{-16}$ g/g of $^{238}$U and $^{232}$Th requires a large ($\sim$20 m$^3$) detection volume and ultralow background levels. The present paper reports on the design and major components of the OSIRIS detector, the detector simulation as well as the measuring strategies foreseen and the sensitivity levels to U/Th that can be reached in this setup. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.16900v1-abstract-full').style.display = 'none'; document.getElementById('2103.16900v1-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> 31 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">32 pages, 22 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/2011.06405">arXiv:2011.06405</a> <span> [<a href="https://arxiv.org/pdf/2011.06405">pdf</a>, <a href="https://arxiv.org/format/2011.06405">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/10.1007/JHEP03(2021)004">10.1007/JHEP03(2021)004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Calibration Strategy of the JUNO Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+collaboration"> JUNO collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+R">Rizwan Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">Guangpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Bernieri%2C+E">Enrico Bernieri</a>, <a href="/search/physics?searchtype=author&query=Birkenfeld%2C+T">Thilo Birkenfeld</a> , et al. (571 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.06405v3-abstract-short" style="display: inline;"> We present the calibration strategy for the 20 kton liquid scintillator central detector of the Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional calibration program, in combination with a novel dual calorimetry technique exploiting two independent photosensors and readout systems, we demonstrate that the JUNO central detector ca… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.06405v3-abstract-full').style.display = 'inline'; document.getElementById('2011.06405v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.06405v3-abstract-full" style="display: none;"> We present the calibration strategy for the 20 kton liquid scintillator central detector of the Jiangmen Underground Neutrino Observatory (JUNO). By utilizing a comprehensive multiple-source and multiple-positional calibration program, in combination with a novel dual calorimetry technique exploiting two independent photosensors and readout systems, we demonstrate that the JUNO central detector can achieve a better than 1% energy linearity and a 3% effective energy resolution, required by the neutrino mass ordering determination. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.06405v3-abstract-full').style.display = 'none'; document.getElementById('2011.06405v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.00314">arXiv:2007.00314</a> <span> [<a href="https://arxiv.org/pdf/2007.00314">pdf</a>, <a href="https://arxiv.org/format/2007.00314">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"> Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bay%2C+D">Daya Bay</a>, <a href="/search/physics?searchtype=author&query=collaborations%2C+J">JUNO collaborations</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">A. Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">T. Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">S. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">M. Akram</a>, <a href="/search/physics?searchtype=author&query=Ali%2C+N">N. Ali</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G+P">G. P. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">G. Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">N. Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">V. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">T. Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">B. Asavapibhop</a>, <a href="/search/physics?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">J. P. A. M. de Andr茅</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">A. Babic</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">W. Baldini</a>, <a href="/search/physics?searchtype=author&query=Baldoncini%2C+M">M. Baldoncini</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">E. Baussan</a> , et al. (642 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="2007.00314v1-abstract-short" style="display: inline;"> To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.00314v1-abstract-full').style.display = 'inline'; document.getElementById('2007.00314v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.00314v1-abstract-full" style="display: none;"> To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detector size difference between Daya Bay and JUNO, the Daya Bay data were used to tune the parameters of a newly developed optical model. Then, the model and tuned parameters were used in the JUNO simulation. This enabled to determine the optimal composition for the JUNO LS: purified solvent LAB with 2.5 g/L PPO, and 1 to 4 mg/L bis-MSB. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.00314v1-abstract-full').style.display = 'none'; document.getElementById('2007.00314v1-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 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 8 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/2006.15386">arXiv:2006.15386</a> <span> [<a href="https://arxiv.org/pdf/2006.15386">pdf</a>, <a href="https://arxiv.org/format/2006.15386">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 Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/abe84b">10.1088/1674-1137/abe84b <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search For Electron-Antineutrinos Associated With Gravitational-Wave Events GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817 at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Dalager%2C+O">O. Dalager</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/physics?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/physics?searchtype=author&query=Dohnal%2C+T">T. Dohnal</a>, <a href="/search/physics?searchtype=author&query=Dove%2C+J">J. Dove</a>, <a href="/search/physics?searchtype=author&query=Dvorak%2C+M">M. Dvorak</a> , et al. (161 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.15386v4-abstract-short" style="display: inline;"> Providing a possible connection between neutrino emission and gravitational-wave (GW) bursts is important to our understanding of the physical processes that occur when black holes or neutron stars merge. In the Daya Bay experiment, using data collected from December 2011 to August 2017, a search has been performed for electron-antineutrino signals coinciding with detected GW events, including GW1… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15386v4-abstract-full').style.display = 'inline'; document.getElementById('2006.15386v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.15386v4-abstract-full" style="display: none;"> Providing a possible connection between neutrino emission and gravitational-wave (GW) bursts is important to our understanding of the physical processes that occur when black holes or neutron stars merge. In the Daya Bay experiment, using data collected from December 2011 to August 2017, a search has been performed for electron-antineutrino signals coinciding with detected GW events, including GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817. We used three time windows of $\mathrm{\pm 10~s}$, $\mathrm{\pm 500~s}$, and $\mathrm{\pm 1000~s}$ relative to the occurrence of the GW events, and a neutrino energy range of 1.8 to 100 MeV to search for correlated neutrino candidates. The detected electron-antineutrino candidates are consistent with the expected background rates for all the three time windows. Assuming monochromatic spectra, we found upper limits (90% confidence level) on electron-antineutrino fluence of $(1.13~-~2.44) \times 10^{11}~\rm{cm^{-2}}$ at 5 MeV to $8.0 \times 10^{7}~\rm{cm^{-2}}$ at 100 MeV for the three time windows. Under the assumption of a Fermi-Dirac spectrum, the upper limits were found to be $(5.4~-~7.0)\times 10^{9}~\rm{cm^{-2}}$ for the three time windows. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15386v4-abstract-full').style.display = 'none'; document.getElementById('2006.15386v4-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 12 figures, 9 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/2006.11760">arXiv:2006.11760</a> <span> [<a href="https://arxiv.org/pdf/2006.11760">pdf</a>, <a href="https://arxiv.org/format/2006.11760">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Feasibility and physics potential of detecting $^8$B solar neutrinos at JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+collaboration"> JUNO collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=Ali%2C+N">Nawab Ali</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">Guangpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Bernieri%2C+E">Enrico Bernieri</a>, <a href="/search/physics?searchtype=author&query=Biare%2C+D">David Biare</a> , et al. (572 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.11760v1-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory~(JUNO) features a 20~kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent experiment for $^8$B solar neutrino measurements, such as its low-energy threshold, its high energy resolution compared to water Cherenkov detectors, and its much large target mass compared to previous liquid s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.11760v1-abstract-full').style.display = 'inline'; document.getElementById('2006.11760v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.11760v1-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory~(JUNO) features a 20~kt multi-purpose underground liquid scintillator sphere as its main detector. Some of JUNO's features make it an excellent experiment for $^8$B solar neutrino measurements, such as its low-energy threshold, its high energy resolution compared to water Cherenkov detectors, and its much large target mass compared to previous liquid scintillator detectors. In this paper we present a comprehensive assessment of JUNO's potential for detecting $^8$B solar neutrinos via the neutrino-electron elastic scattering process. A reduced 2~MeV threshold on the recoil electron energy is found to be achievable assuming the intrinsic radioactive background $^{238}$U and $^{232}$Th in the liquid scintillator can be controlled to 10$^{-17}$~g/g. With ten years of data taking, about 60,000 signal and 30,000 background events are expected. This large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter, which will shed new light on the tension between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation framework. If $螖m^{2}_{21}=4.8\times10^{-5}~(7.5\times10^{-5})$~eV$^{2}$, JUNO can provide evidence of neutrino oscillation in the Earth at the about 3$蟽$~(2$蟽$) level by measuring the non-zero signal rate variation with respect to the solar zenith angle. Moveover, JUNO can simultaneously measure $螖m^2_{21}$ using $^8$B solar neutrinos to a precision of 20\% or better depending on the central value and to sub-percent precision using reactor antineutrinos. A comparison of these two measurements from the same detector will help elucidate the current tension between the value of $螖m^2_{21}$ reported by solar neutrino experiments and the KamLAND experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.11760v1-abstract-full').style.display = 'none'; document.getElementById('2006.11760v1-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> 21 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 14 plots, 7 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/2005.08745">arXiv:2005.08745</a> <span> [<a href="https://arxiv.org/pdf/2005.08745">pdf</a>, <a href="https://arxiv.org/format/2005.08745">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> TAO Conceptual Design Report: A Precision Measurement of the Reactor Antineutrino Spectrum with Sub-percent Energy Resolution </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=JUNO+Collaboration"> JUNO Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abusleme%2C+A">Angel Abusleme</a>, <a href="/search/physics?searchtype=author&query=Adam%2C+T">Thomas Adam</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+S">Shakeel Ahmad</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Akram%2C+M">Muhammad Akram</a>, <a href="/search/physics?searchtype=author&query=Ali%2C+N">Nawab Ali</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">Guangpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Andronico%2C+G">Giuseppe Andronico</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">Nikolay Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Antoshkina%2C+T">Tatiana Antoshkina</a>, <a href="/search/physics?searchtype=author&query=Asavapibhop%2C+B">Burin Asavapibhop</a>, <a href="/search/physics?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/physics?searchtype=author&query=Auguste%2C+D">Didier Auguste</a>, <a href="/search/physics?searchtype=author&query=Babic%2C+A">Andrej Babic</a>, <a href="/search/physics?searchtype=author&query=Baldini%2C+W">Wander Baldini</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">Andrea Barresi</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">Marco Bellato</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">Antonio Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Bernieri%2C+E">Enrico Bernieri</a>, <a href="/search/physics?searchtype=author&query=Biare%2C+D">David Biare</a> , et al. (568 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2005.08745v1-abstract-short" style="display: inline;"> The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear Power Plant. The reactor antineutrino spectrum will be measured with sub-percent energy resolution, to provide a reference spectrum for future re… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.08745v1-abstract-full').style.display = 'inline'; document.getElementById('2005.08745v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.08745v1-abstract-full" style="display: none;"> The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). A ton-level liquid scintillator detector will be placed at about 30 m from a core of the Taishan Nuclear Power Plant. The reactor antineutrino spectrum will be measured with sub-percent energy resolution, to provide a reference spectrum for future reactor neutrino experiments, and to provide a benchmark measurement to test nuclear databases. A spherical acrylic vessel containing 2.8 ton gadolinium-doped liquid scintillator will be viewed by 10 m^2 Silicon Photomultipliers (SiPMs) of >50% photon detection efficiency with almost full coverage. The photoelectron yield is about 4500 per MeV, an order higher than any existing large-scale liquid scintillator detectors. The detector operates at -50 degree C to lower the dark noise of SiPMs to an acceptable level. The detector will measure about 2000 reactor antineutrinos per day, and is designed to be well shielded from cosmogenic backgrounds and ambient radioactivities to have about 10% background-to-signal ratio. The experiment is expected to start operation in 2022. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.08745v1-abstract-full').style.display = 'none'; document.getElementById('2005.08745v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 18 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">134 pages, 114 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/1904.07812">arXiv:1904.07812</a> <span> [<a href="https://arxiv.org/pdf/1904.07812">pdf</a>, <a href="https://arxiv.org/format/1904.07812">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/10.1103/PhysRevLett.123.111801">10.1103/PhysRevLett.123.111801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extraction of the $^{235}$U and $^{239}$Pu Antineutrino Spectra at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+collaboration"> Daya Bay collaboration</a>, <a href="/search/physics?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Dash%2C+N">N. Dash</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a> , et al. (171 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1904.07812v3-abstract-short" style="display: inline;"> This Letter reports the first extraction of individual antineutrino spectra from $^{235}$U and $^{239}$Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses $3.5\times 10^6$ inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, $^{235}$U… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.07812v3-abstract-full').style.display = 'inline'; document.getElementById('1904.07812v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1904.07812v3-abstract-full" style="display: none;"> This Letter reports the first extraction of individual antineutrino spectra from $^{235}$U and $^{239}$Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses $3.5\times 10^6$ inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, $^{235}$U and $^{239}$Pu, are extracted using the evolution of the prompt spectrum as a function of the isotope fission fractions. In the energy window of 4--6~MeV, a 7\% (9\%) excess of events is observed for the $^{235}$U ($^{239}$Pu) spectrum compared with the normalized Huber-Mueller model prediction. The significance of discrepancy is $4.0蟽$ for $^{235}$U spectral shape compared with the Huber-Mueller model prediction. The shape of the measured inverse beta-decay prompt energy spectrum disagrees with the prediction of the Huber-Mueller model at $5.3蟽$. In the energy range of 4--6~MeV, a maximal local discrepancy of $6.3蟽$ is observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.07812v3-abstract-full').style.display = 'none'; document.getElementById('1904.07812v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 April, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated title</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 123, 111801 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.08241">arXiv:1902.08241</a> <span> [<a href="https://arxiv.org/pdf/1902.08241">pdf</a>, <a href="https://arxiv.org/format/1902.08241">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> </div> </div> <p class="title is-5 mathjax"> A high precision calibration of the nonlinear energy response at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+collaboration"> Daya Bay collaboration</a>, <a href="/search/physics?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Dash%2C+N">N. Dash</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a> , et al. (173 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1902.08241v2-abstract-short" style="display: inline;"> A high precision calibration of the nonlinearity in the energy response of the Daya Bay Reactor Neutrino Experiment's antineutrino detectors is presented in detail. The energy nonlinearity originates from the particle-dependent light yield of the scintillator and charge-dependent electronics response. The nonlinearity model is constrained by $纬$ calibration points from deployed and naturally occur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.08241v2-abstract-full').style.display = 'inline'; document.getElementById('1902.08241v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.08241v2-abstract-full" style="display: none;"> A high precision calibration of the nonlinearity in the energy response of the Daya Bay Reactor Neutrino Experiment's antineutrino detectors is presented in detail. The energy nonlinearity originates from the particle-dependent light yield of the scintillator and charge-dependent electronics response. The nonlinearity model is constrained by $纬$ calibration points from deployed and naturally occurring radioactive sources, the $尾$ spectrum from $^{12}$B decays, and a direct measurement of the electronics nonlinearity with a new flash analog-to-digital converter readout system. Less than 0.5% uncertainty in the energy nonlinearity calibration is achieved for positrons of kinetic energies greater than 1 MeV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.08241v2-abstract-full').style.display = 'none'; document.getElementById('1902.08241v2-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 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages, 22 figures, 4 tables. Final version to be published in NIM-A</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1809.02261">arXiv:1809.02261</a> <span> [<a href="https://arxiv.org/pdf/1809.02261">pdf</a>, <a href="https://arxiv.org/format/1809.02261">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/10.1103/PhysRevLett.121.241805">10.1103/PhysRevLett.121.241805 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of electron antineutrino oscillation with 1958 days of operation at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a> , et al. (180 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="1809.02261v5-abstract-short" style="display: inline;"> We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor $\overline谓_{e}$ inverse beta decay candidates observed over 1958 days of data collection. The installation of a Flash-ADC readout system and a special calibration campaign using different source enclosures reduce uncertainties in the absolute energy calibration… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.02261v5-abstract-full').style.display = 'inline'; document.getElementById('1809.02261v5-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1809.02261v5-abstract-full" style="display: none;"> We report a measurement of electron antineutrino oscillation from the Daya Bay Reactor Neutrino Experiment with nearly 4 million reactor $\overline谓_{e}$ inverse beta decay candidates observed over 1958 days of data collection. The installation of a Flash-ADC readout system and a special calibration campaign using different source enclosures reduce uncertainties in the absolute energy calibration to less than 0.5% for visible energies larger than 2 MeV. The uncertainty in the cosmogenic $^9$Li and $^8$He background is reduced from 45% to 30% in the near detectors. A detailed investigation of the spent nuclear fuel history improves its uncertainty from 100% to 30%. Analysis of the relative $\overline谓_{e}$ rates and energy spectra among detectors yields $\sin^{2}2胃_{13} = 0.0856\pm 0.0029$ and $螖m^2_{32}=(2.471^{+0.068}_{-0.070})\times 10^{-3}~\mathrm{eV}^2$ assuming the normal hierarchy, and $螖m^2_{32}=-(2.575^{+0.068}_{-0.070})\times 10^{-3}~\mathrm{eV}^2$ assuming the inverted hierarchy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.02261v5-abstract-full').style.display = 'none'; document.getElementById('1809.02261v5-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 September, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures, and 1 table. v4: the published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 121, 241805 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.10836">arXiv:1808.10836</a> <span> [<a href="https://arxiv.org/pdf/1808.10836">pdf</a>, <a href="https://arxiv.org/format/1808.10836">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/10.1103/PhysRevD.100.052004">10.1103/PhysRevD.100.052004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved Measurement of the Reactor Antineutrino Flux at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a> , et al. (178 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1808.10836v1-abstract-short" style="display: inline;"> This work reports a precise measurement of the reactor antineutrino flux using 2.2 million inverse beta decay (IBD) events collected with the Daya Bay near detectors in 1230 days. The dominant uncertainty on the neutron detection efficiency is reduced by 56% with respect to the previous measurement through a comprehensive neutron calibration and detailed data and simulation analysis. The new avera… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.10836v1-abstract-full').style.display = 'inline'; document.getElementById('1808.10836v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.10836v1-abstract-full" style="display: none;"> This work reports a precise measurement of the reactor antineutrino flux using 2.2 million inverse beta decay (IBD) events collected with the Daya Bay near detectors in 1230 days. The dominant uncertainty on the neutron detection efficiency is reduced by 56% with respect to the previous measurement through a comprehensive neutron calibration and detailed data and simulation analysis. The new average IBD yield is determined to be $(5.91\pm0.09)\times10^{-43}~\rm{cm}^2/\rm{fission}$ with total uncertainty improved by 29%. The corresponding mean fission fractions from the four main fission isotopes $^{235}$U, $^{238}$U, $^{239}$Pu, and $^{241}$Pu are 0.564, 0.076, 0.304, and 0.056, respectively. The ratio of measured to predicted antineutrino yield is found to be $0.952\pm0.014\pm0.023$ ($1.001\pm0.015\pm0.027$) for the Huber-Mueller (ILL-Vogel) model, where the first and second uncertainty are experimental and theoretical model uncertainty, respectively. This measurement confirms the discrepancy between the world average of reactor antineutrino flux and the Huber-Mueller model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.10836v1-abstract-full').style.display = 'none'; document.getElementById('1808.10836v1-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> 31 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 9 figures, and 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 100, 052004 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.05134">arXiv:1803.05134</a> <span> [<a href="https://arxiv.org/pdf/1803.05134">pdf</a>, <a href="https://arxiv.org/format/1803.05134">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/s10052-018-5803-3">10.1140/epjc/s10052-018-5803-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance study of particle identification at the CEPC using TPC $dE/dx$ information </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F">F. An</a>, <a href="/search/physics?searchtype=author&query=Prell%2C+S">S. Prell</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+C">C. Chen</a>, <a href="/search/physics?searchtype=author&query=Cochran%2C+J">J. Cochran</a>, <a href="/search/physics?searchtype=author&query=Lou%2C+X">X. Lou</a>, <a href="/search/physics?searchtype=author&query=Ruan%2C+M">M. Ruan</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="1803.05134v1-abstract-short" style="display: inline;"> The kaon identification is crucial for the flavor physics, and also benefits the flavor and charge reconstruction of the jets. We explore the particle identification capability for tracks with momenta ranging from 2-20 GeV/c using the $dE/dx$ measurements in the Time Projection Chamber at the future Circular Electron-Positron Collider. Based on Monte Carlo simulation, we anticipate that an average… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.05134v1-abstract-full').style.display = 'inline'; document.getElementById('1803.05134v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.05134v1-abstract-full" style="display: none;"> The kaon identification is crucial for the flavor physics, and also benefits the flavor and charge reconstruction of the jets. We explore the particle identification capability for tracks with momenta ranging from 2-20 GeV/c using the $dE/dx$ measurements in the Time Projection Chamber at the future Circular Electron-Positron Collider. Based on Monte Carlo simulation, we anticipate that an average $3.2~蟽$ ($2.6~蟽$) $K/蟺$ separation can be achieved based on $dE/dx$ information for an optimistic (conservative) extrapolation of the simulated performance to the final system. Time-of-flight (TOF) information from the Electromagnetic Calorimeter can provide $K/蟺$ separation around 1 GeV/c and reduce the $K/p$ mis-identification rate. By combining the $dE/dx$ and TOF information, we estimate that in the optimistic scenario a kaon selection in inclusive hadronic $Z$ decays with both the average efficiency and purity approaching 95\% can be achieved. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.05134v1-abstract-full').style.display = 'none'; document.getElementById('1803.05134v1-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 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1711.00588">arXiv:1711.00588</a> <span> [<a href="https://arxiv.org/pdf/1711.00588">pdf</a>, <a href="https://arxiv.org/format/1711.00588">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/10.1103/PhysRevD.97.052009">10.1103/PhysRevD.97.052009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Cosmogenic neutron production at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/physics?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/physics?searchtype=author&query=Dolgareva%2C+M">M. Dolgareva</a> , et al. (177 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="1711.00588v2-abstract-short" style="display: inline;"> Neutrons produced by cosmic ray muons are an important background for underground experiments studying neutrino oscillations, neutrinoless double beta decay, dark matter, and other rare-event signals. A measurement of the neutron yield in the three different experimental halls of the Daya Bay Reactor Neutrino Experiment at varying depth is reported. The neutron yield in Daya Bay's liquid scintilla… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.00588v2-abstract-full').style.display = 'inline'; document.getElementById('1711.00588v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1711.00588v2-abstract-full" style="display: none;"> Neutrons produced by cosmic ray muons are an important background for underground experiments studying neutrino oscillations, neutrinoless double beta decay, dark matter, and other rare-event signals. A measurement of the neutron yield in the three different experimental halls of the Daya Bay Reactor Neutrino Experiment at varying depth is reported. The neutron yield in Daya Bay's liquid scintillator is measured to be $Y_n=(10.26\pm 0.86)\times 10^{-5}$, $(10.22\pm 0.87)\times 10^{-5}$, and $(17.03\pm 1.22)\times 10^{-5}~渭^{-1}~$g$^{-1}~$cm$^2$ at depths of 250, 265, and 860 meters-water-equivalent. These results are compared to other measurements and the simulated neutron yield in Fluka and Geant4. A global fit including the Daya Bay measurements yields a power law coefficient of $0.77 \pm 0.03$ for the dependence of the neutron yield on muon energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1711.00588v2-abstract-full').style.display = 'none'; document.getElementById('1711.00588v2-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, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 97, 052009 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.01265">arXiv:1708.01265</a> <span> [<a href="https://arxiv.org/pdf/1708.01265">pdf</a>, <a href="https://arxiv.org/format/1708.01265">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/10.1088/1475-7516/2018/01/001">10.1088/1475-7516/2018/01/001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Seasonal Variation of the Underground Cosmic Muon Flux Observed at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/physics?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/physics?searchtype=author&query=Dolgareva%2C+M">M. Dolgareva</a> , et al. (179 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="1708.01265v2-abstract-short" style="display: inline;"> The Daya Bay Experiment consists of eight identically designed detectors located in three underground experimental halls named as EH1, EH2, EH3, with 250, 265 and 860 meters of water equivalent vertical overburden, respectively. Cosmic muon events have been recorded over a two-year period. The underground muon rate is observed to be positively correlated with the effective atmospheric temperature… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01265v2-abstract-full').style.display = 'inline'; document.getElementById('1708.01265v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.01265v2-abstract-full" style="display: none;"> The Daya Bay Experiment consists of eight identically designed detectors located in three underground experimental halls named as EH1, EH2, EH3, with 250, 265 and 860 meters of water equivalent vertical overburden, respectively. Cosmic muon events have been recorded over a two-year period. The underground muon rate is observed to be positively correlated with the effective atmospheric temperature and to follow a seasonal modulation pattern. The correlation coefficient $伪$, describing how a variation in the muon rate relates to a variation in the effective atmospheric temperature, is found to be $伪_{\text{EH1}} = 0.362\pm0.031$, $伪_{\text{EH2}} = 0.433\pm0.038$ and $伪_{\text{EH3}} = 0.641\pm0.057$ for each experimental hall. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01265v2-abstract-full').style.display = 'none'; document.getElementById('1708.01265v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated to be identical to the published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP01(2018)001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.01237">arXiv:1708.01237</a> <span> [<a href="https://arxiv.org/pdf/1708.01237">pdf</a>, <a href="https://arxiv.org/format/1708.01237">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.120.040407">10.1103/PhysRevLett.120.040407 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Correlated dynamics in a synthetic lattice of momentum states </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Ang%27ong%27a%2C+J">Jackson Ang'ong'a</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1708.01237v1-abstract-short" style="display: inline;"> We study the influence of atomic interactions on quantum simulations in momentum-space lattices (MSLs), where driven transitions between discrete momentum states mimic transport between sites of a synthetic lattice. Low energy atomic collisions, which are short ranged in real space, relate to nearly infinite-ranged interactions in momentum space. However, the added exchange energy between atoms in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01237v1-abstract-full').style.display = 'inline'; document.getElementById('1708.01237v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.01237v1-abstract-full" style="display: none;"> We study the influence of atomic interactions on quantum simulations in momentum-space lattices (MSLs), where driven transitions between discrete momentum states mimic transport between sites of a synthetic lattice. Low energy atomic collisions, which are short ranged in real space, relate to nearly infinite-ranged interactions in momentum space. However, the added exchange energy between atoms in distinguishable momentum states leads to an effectively attractive, finite-ranged interaction in momentum space. In this work, we observe the onset of self-trapping driven by such interactions in a momentum-space double well, paving the way for more complex many-body studies in tailored MSLs. We consider the types of phenomena that may result from these interactions, including the formation of chiral solitons in topological zigzag lattices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01237v1-abstract-full').style.display = 'none'; document.getElementById('1708.01237v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 figures; 3 pages of supplementary materials; This submission supersedes arXiv:1702.07315 with updated experimental results</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 120, 040407 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1705.09268">arXiv:1705.09268</a> <span> [<a href="https://arxiv.org/pdf/1705.09268">pdf</a>, <a href="https://arxiv.org/format/1705.09268">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Disordered Systems and Neural Networks">cond-mat.dis-nn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevX.8.031045">10.1103/PhysRevX.8.031045 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Engineering a flux-dependent mobility edge in disordered zigzag chains </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1705.09268v2-abstract-short" style="display: inline;"> There has been great interest in realizing quantum simulators of charged particles in artificial gauge fields. Here, we perform the first quantum simulation explorations of the combination of artificial gauge fields and disorder. Using synthetic lattice techniques based on parametrically-coupled atomic momentum states, we engineer zigzag chains with a tunable homogeneous flux. The breaking of time… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.09268v2-abstract-full').style.display = 'inline'; document.getElementById('1705.09268v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1705.09268v2-abstract-full" style="display: none;"> There has been great interest in realizing quantum simulators of charged particles in artificial gauge fields. Here, we perform the first quantum simulation explorations of the combination of artificial gauge fields and disorder. Using synthetic lattice techniques based on parametrically-coupled atomic momentum states, we engineer zigzag chains with a tunable homogeneous flux. The breaking of time-reversal symmetry by the applied flux leads to analogs of spin-orbit coupling and spin-momentum locking, which we observe directly through the chiral dynamics of atoms initialized to single lattice sites. We additionally introduce precisely controlled disorder in the site energy landscape, allowing us to explore the interplay of disorder and large effective magnetic fields. The combination of correlated disorder and controlled intra- and inter-row tunneling in this system naturally supports energy-dependent localization, relating to a single-particle mobility edge. We measure the localization properties of the extremal eigenstates of this system, the ground state and the most-excited state, and demonstrate clear evidence for a flux-dependent mobility edge. These measurements constitute the first direct evidence for energy-dependent localization in a lower-dimensional system, as well as the first explorations of the combined influence of artificial gauge fields and engineered disorder. Moreover, we provide direct evidence for interaction shifts of the localization transitions for both low- and high-energy eigenstates in correlated disorder, relating to the presence of a many-body mobility edge. The unique combination of strong interactions, controlled disorder, and tunable artificial gauge fields present in this synthetic lattice system should enable myriad explorations into intriguing correlated transport phenomena. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1705.09268v2-abstract-full').style.display = 'none'; document.getElementById('1705.09268v2-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 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 5 figures, 5 pages of supplementary materials; updated version has additional data</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. X 8, 031045 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.01082">arXiv:1704.01082</a> <span> [<a href="https://arxiv.org/pdf/1704.01082">pdf</a>, <a href="https://arxiv.org/format/1704.01082">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.118.251801">10.1103/PhysRevLett.118.251801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/physics?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/physics?searchtype=author&query=Dolgareva%2C+M">M. Dolgareva</a> , et al. (180 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1704.01082v2-abstract-short" style="display: inline;"> The Daya Bay experiment has observed correlations between reactor core fuel evolution and changes in the reactor antineutrino flux and energy spectrum. Four antineutrino detectors in two experimental halls were used to identify 2.2 million inverse beta decays (IBDs) over 1230 days spanning multiple fuel cycles for each of six 2.9 GW$_{\textrm{th}}$ reactor cores at the Daya Bay and Ling Ao nuclear… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01082v2-abstract-full').style.display = 'inline'; document.getElementById('1704.01082v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.01082v2-abstract-full" style="display: none;"> The Daya Bay experiment has observed correlations between reactor core fuel evolution and changes in the reactor antineutrino flux and energy spectrum. Four antineutrino detectors in two experimental halls were used to identify 2.2 million inverse beta decays (IBDs) over 1230 days spanning multiple fuel cycles for each of six 2.9 GW$_{\textrm{th}}$ reactor cores at the Daya Bay and Ling Ao nuclear power plants. Using detector data spanning effective $^{239}$Pu fission fractions, $F_{239}$, from 0.25 to 0.35, Daya Bay measures an average IBD yield, $\bar蟽_f$, of $(5.90 \pm 0.13) \times 10^{-43}$ cm$^2$/fission and a fuel-dependent variation in the IBD yield, $d蟽_f/dF_{239}$, of $(-1.86 \pm 0.18) \times 10^{-43}$ cm$^2$/fission. This observation rejects the hypothesis of a constant antineutrino flux as a function of the $^{239}$Pu fission fraction at 10 standard deviations. The variation in IBD yield was found to be energy-dependent, rejecting the hypothesis of a constant antineutrino energy spectrum at 5.1 standard deviations. While measurements of the evolution in the IBD spectrum show general agreement with predictions from recent reactor models, the measured evolution in total IBD yield disagrees with recent predictions at 3.1$蟽$. This discrepancy indicates that an overall deficit in measured flux with respect to predictions does not result from equal fractional deficits from the primary fission isotopes $^{235}$U, $^{239}$Pu, $^{238}$U, and $^{241}$Pu. Based on measured IBD yield variations, yields of $(6.17 \pm 0.17)$ and $(4.27 \pm 0.26) \times 10^{-43}$ cm$^2$/fission have been determined for the two dominant fission parent isotopes $^{235}$U and $^{239}$Pu. A 7.8% discrepancy between the observed and predicted $^{235}$U yield suggests that this isotope may be the primary contributor to the reactor antineutrino anomaly. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01082v2-abstract-full').style.display = 'none'; document.getElementById('1704.01082v2-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 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 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. Lett. 118, 251801 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1702.07315">arXiv:1702.07315</a> <span> [<a href="https://arxiv.org/pdf/1702.07315">pdf</a>, <a href="https://arxiv.org/format/1702.07315">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.120.040407">10.1103/PhysRevLett.120.040407 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Interacting atomic quantum fluids on momentum-space lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Ang%27ong%27a%2C+J">Jackson Ang'ong'a</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1702.07315v2-abstract-short" style="display: inline;"> We study the influence of atomic interactions on quantum simulations in momentum-space lattices (MSLs), where driven atomic transitions between discrete momentum states mimic transport between sites of a synthetic lattice. Low energy atomic collisions, which are short ranged in real space, relate to nearly infinite-ranged interactions in momentum space. However, the distinguishability of the discr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.07315v2-abstract-full').style.display = 'inline'; document.getElementById('1702.07315v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1702.07315v2-abstract-full" style="display: none;"> We study the influence of atomic interactions on quantum simulations in momentum-space lattices (MSLs), where driven atomic transitions between discrete momentum states mimic transport between sites of a synthetic lattice. Low energy atomic collisions, which are short ranged in real space, relate to nearly infinite-ranged interactions in momentum space. However, the distinguishability of the discrete momentum states coupled in MSLs gives rise to an added exchange energy between condensate atoms in different momentum orders, relating to an effectively attractive, finite-ranged interaction in momentum space. We explore the types of phenomena that can result from this interaction, including the formation of chiral self-bound states in topological MSLs. We also discuss the prospects for creating squeezed states in momentum-space double wells. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.07315v2-abstract-full').style.display = 'none'; document.getElementById('1702.07315v2-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, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 February, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 figures; This submission is superseded by arXiv:1708.01237 with updated experimental results</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 120, 040407 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1702.04977">arXiv:1702.04977</a> <span> [<a href="https://arxiv.org/pdf/1702.04977">pdf</a>, <a href="https://arxiv.org/ps/1702.04977">ps</a>, <a href="https://arxiv.org/format/1702.04977">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="Data Analysis, Statistics and Probability">physics.data-an</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/10.1088/1674-1137/41/6/063001">10.1088/1674-1137/41/6/063001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Luminosity measurements for the R scan experiment at BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/physics?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+S">S. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ai%2C+X+C">X. C. Ai</a>, <a href="/search/physics?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/physics?searchtype=author&query=Albrecht%2C+M">M. Albrecht</a>, <a href="/search/physics?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/physics?searchtype=author&query=Amoroso%2C+A">A. Amoroso</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/physics?searchtype=author&query=Bakina%2C+O">O. Bakina</a>, <a href="/search/physics?searchtype=author&query=Ferroli%2C+R+B">R. Baldini Ferroli</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/physics?searchtype=author&query=Bennett%2C+D+W">D. W. Bennett</a>, <a href="/search/physics?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/physics?searchtype=author&query=Berger%2C+N">N. Berger</a>, <a href="/search/physics?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/physics?searchtype=author&query=Bettoni%2C+D">D. Bettoni</a>, <a href="/search/physics?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/physics?searchtype=author&query=Bianchi%2C+F">F. Bianchi</a>, <a href="/search/physics?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/physics?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/physics?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+H">H. Cai</a> , et al. (405 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="1702.04977v1-abstract-short" style="display: inline;"> By analyzing the large-angle Bhabha scattering events $e^{+}e^{-}$ $\to$ ($纬$)$e^{+}e^{-}$ and diphoton events $e^{+}e^{-}$ $\to$ $纬纬$ for the data sets collected at center-of-mass (c.m.) energies between 2.2324 and 4.5900 GeV (131 energy points in total) with the upgraded Beijing Spectrometer (BESIII) at the Beijing Electron-Positron Collider (BEPCII), the integrated luminosities have been measur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.04977v1-abstract-full').style.display = 'inline'; document.getElementById('1702.04977v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1702.04977v1-abstract-full" style="display: none;"> By analyzing the large-angle Bhabha scattering events $e^{+}e^{-}$ $\to$ ($纬$)$e^{+}e^{-}$ and diphoton events $e^{+}e^{-}$ $\to$ $纬纬$ for the data sets collected at center-of-mass (c.m.) energies between 2.2324 and 4.5900 GeV (131 energy points in total) with the upgraded Beijing Spectrometer (BESIII) at the Beijing Electron-Positron Collider (BEPCII), the integrated luminosities have been measured at the different c.m. energies, individually. The results are the important inputs for R value and $J/蠄$ resonance parameter measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1702.04977v1-abstract-full').style.display = 'none'; document.getElementById('1702.04977v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 February, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1701.07493">arXiv:1701.07493</a> <span> [<a href="https://arxiv.org/pdf/1701.07493">pdf</a>, <a href="https://arxiv.org/format/1701.07493">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/s41467-017-00387-w">10.1038/s41467-017-00387-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ballistic, diffusive, and arrested transport in disordered momentum-space lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1701.07493v1-abstract-short" style="display: inline;"> Ultracold atoms in optical lattices offer a unique platform for investigating disorder-driven phenomena. While static disordered site potentials have been explored in a number of optical lattice experiments, a more general control over site-energy and off-diagonal tunneling disorder has been lacking. The use of atomic quantum states as "synthetic dimensions" has introduced the spectroscopic, site-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1701.07493v1-abstract-full').style.display = 'inline'; document.getElementById('1701.07493v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1701.07493v1-abstract-full" style="display: none;"> Ultracold atoms in optical lattices offer a unique platform for investigating disorder-driven phenomena. While static disordered site potentials have been explored in a number of optical lattice experiments, a more general control over site-energy and off-diagonal tunneling disorder has been lacking. The use of atomic quantum states as "synthetic dimensions" has introduced the spectroscopic, site-resolved control necessary to engineer new, more tailored realizations of disorder. Here, by controlling laser-driven dynamics of atomic population in a momentum-space lattice, we extend the range of synthetic-dimension-based quantum simulation and present the first explorations of dynamical disorder and tunneling disorder in an atomic system. By applying static tunneling phase disorder to a one-dimensional lattice, we observe ballistic quantum spreading as in the case of uniform tunneling. When the applied disorder fluctuates on timescales comparable to intersite tunneling, we instead observe diffusive atomic transport, signaling a crossover from quantum to classical expansion dynamics. We compare these observations to the case of static site-energy disorder, where we directly observe quantum localization in the momentum-space lattice. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1701.07493v1-abstract-full').style.display = 'none'; document.getElementById('1701.07493v1-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 January, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Communications 8, Article number: 325 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1610.04802">arXiv:1610.04802</a> <span> [<a href="https://arxiv.org/pdf/1610.04802">pdf</a>, <a href="https://arxiv.org/format/1610.04802">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.95.072006">10.1103/PhysRevD.95.072006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of electron antineutrino oscillation based on 1230 days of operation of the Daya Bay experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a> , et al. (198 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="1610.04802v1-abstract-short" style="display: inline;"> A measurement of electron antineutrino oscillation by the Daya Bay Reactor Neutrino Experiment is described in detail. Six 2.9-GW$_{\rm th}$ nuclear power reactors of the Daya Bay and Ling Ao nuclear power facilities served as intense sources of $\overline谓_{e}$'s. Comparison of the $\overline谓_{e}$ rate and energy spectrum measured by antineutrino detectors far from the nuclear reactors (… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.04802v1-abstract-full').style.display = 'inline'; document.getElementById('1610.04802v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1610.04802v1-abstract-full" style="display: none;"> A measurement of electron antineutrino oscillation by the Daya Bay Reactor Neutrino Experiment is described in detail. Six 2.9-GW$_{\rm th}$ nuclear power reactors of the Daya Bay and Ling Ao nuclear power facilities served as intense sources of $\overline谓_{e}$'s. Comparison of the $\overline谓_{e}$ rate and energy spectrum measured by antineutrino detectors far from the nuclear reactors ($\sim$1500-1950 m) relative to detectors near the reactors ($\sim$350-600 m) allowed a precise measurement of $\overline谓_{e}$ disappearance. More than 2.5 million $\overline谓_{e}$ inverse beta decay interactions were observed, based on the combination of 217 days of operation of six antineutrino detectors (Dec. 2011--Jul. 2012) with a subsequent 1013 days using the complete configuration of eight detectors (Oct. 2012--Jul. 2015). The $\overline谓_{e}$ rate observed at the far detectors relative to the near detectors showed a significant deficit, $R=0.949 \pm 0.002(\mathrm{stat.}) \pm 0.002(\mathrm{syst.})$. The energy dependence of $\overline谓_{e}$ disappearance showed the distinct variation predicted by neutrino oscillation. Analysis using an approximation for the three-flavor oscillation probability yielded the flavor-mixing angle $\sin^22胃_{13}=0.0841 \pm 0.0027(\mathrm{stat.}) \pm 0.0019(\mathrm{syst.})$ and the effective neutrino mass-squared difference of $\left|螖m^2_{\mathrm{ee}}\right|=(2.50 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$. Analysis using the exact three-flavor probability found $螖m^2_{32}=(2.45 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$ assuming the normal neutrino mass hierarchy and $螖m^2_{32}=(-2.56 \pm 0.06(\mathrm{stat.}) \pm 0.06(\mathrm{syst.})) \times 10^{-3}\ {\rm eV}^2$ for the inverted hierarchy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1610.04802v1-abstract-full').style.display = 'none'; document.getElementById('1610.04802v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">44 pages, 44 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 95, 072006 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1609.09467">arXiv:1609.09467</a> <span> [<a href="https://arxiv.org/pdf/1609.09467">pdf</a>, <a href="https://arxiv.org/format/1609.09467">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1126/sciadv.1602685">10.1126/sciadv.1602685 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Direct observation of chiral currents and magnetic reflection in atomic flux lattices </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1609.09467v2-abstract-short" style="display: inline;"> The prospect of studying topological matter with the precision and control of atomic physics has driven the development of many techniques for engineering artificial magnetic fields and spin-orbit interactions. Recently, the idea of introducing nontrivial topology through the use of internal (or external) atomic states as effective "synthetic dimensions" has garnered attraction for its versatility… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.09467v2-abstract-full').style.display = 'inline'; document.getElementById('1609.09467v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1609.09467v2-abstract-full" style="display: none;"> The prospect of studying topological matter with the precision and control of atomic physics has driven the development of many techniques for engineering artificial magnetic fields and spin-orbit interactions. Recently, the idea of introducing nontrivial topology through the use of internal (or external) atomic states as effective "synthetic dimensions" has garnered attraction for its versatility and possible immunity from heating. Here, we directly engineer tunable artificial gauge fields through the local control of tunneling phases in an effectively two-dimensional manifold of discrete atomic momentum states. We demonstrate the ability to create homogeneous gauge fields of arbitrary value, directly imaging the site-resolved dynamics of induced chiral currents. We furthermore engineer the first inhomogeneous artificial gauge fields for cold atoms, observing the magnetic reflection of atoms incident upon a step-like variation of an artificial vector potential. These results open up new possibilities for the study of topological phases and localization phenomena in atomic gases. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1609.09467v2-abstract-full').style.display = 'none'; document.getElementById('1609.09467v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures; 3 pages of supplementary materials</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Science Advances 3, e1602685 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1607.05378">arXiv:1607.05378</a> <span> [<a href="https://arxiv.org/pdf/1607.05378">pdf</a>, <a href="https://arxiv.org/format/1607.05378">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/41/1/013002">10.1088/1674-1137/41/1/013002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a> , et al. (197 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="1607.05378v2-abstract-short" style="display: inline;"> A new measurement of the reactor antineutrino flux and energy spectrum by the Daya Bay reactor neutrino experiment is reported. The antineutrinos were generated by six 2.9~GW$_{\mathrm{th}}$ nuclear reactors and detected by eight antineutrino detectors deployed in two near (560~m and 600~m flux-weighted baselines) and one far (1640~m flux-weighted baseline) underground experimental halls. With 621… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.05378v2-abstract-full').style.display = 'inline'; document.getElementById('1607.05378v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.05378v2-abstract-full" style="display: none;"> A new measurement of the reactor antineutrino flux and energy spectrum by the Daya Bay reactor neutrino experiment is reported. The antineutrinos were generated by six 2.9~GW$_{\mathrm{th}}$ nuclear reactors and detected by eight antineutrino detectors deployed in two near (560~m and 600~m flux-weighted baselines) and one far (1640~m flux-weighted baseline) underground experimental halls. With 621 days of data, more than 1.2 million inverse beta decay (IBD) candidates were detected. The IBD yield in the eight detectors was measured, and the ratio of measured to predicted flux was found to be $0.946\pm0.020$ ($0.992\pm0.021$) for the Huber+Mueller (ILL+Vogel) model. A 2.9~$蟽$ deviation was found in the measured IBD positron energy spectrum compared to the predictions. In particular, an excess of events in the region of 4-6~MeV was found in the measured spectrum, with a local significance of 4.4~$蟽$. A reactor antineutrino spectrum weighted by the IBD cross section is extracted for model-independent predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.05378v2-abstract-full').style.display = 'none'; document.getElementById('1607.05378v2-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 January, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">version published in Chinese Physics C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chinese Physics C, 2017, 41(1): 13002-013002 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1607.02811">arXiv:1607.02811</a> <span> [<a href="https://arxiv.org/pdf/1607.02811">pdf</a>, <a href="https://arxiv.org/format/1607.02811">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1038/ncomms13986">10.1038/ncomms13986 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of the topological soliton state in the Su-Schrieffer-Heeger model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1607.02811v1-abstract-short" style="display: inline;"> The Su-Schrieffer-Heeger (SSH) model, which captures the most striking transport properties of the conductive organic polymer $trans$-polyacetylene, provides perhaps the most basic model system supporting topological excitations. The alternating bond pattern of polyacetylene chains is captured by the bipartite sublattice structure of the SSH model, emblematic of one-dimensional chiral symmetric to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.02811v1-abstract-full').style.display = 'inline'; document.getElementById('1607.02811v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.02811v1-abstract-full" style="display: none;"> The Su-Schrieffer-Heeger (SSH) model, which captures the most striking transport properties of the conductive organic polymer $trans$-polyacetylene, provides perhaps the most basic model system supporting topological excitations. The alternating bond pattern of polyacetylene chains is captured by the bipartite sublattice structure of the SSH model, emblematic of one-dimensional chiral symmetric topological insulators. This structure supports two distinct nontrivial topological phases, which, when interfaced with one another or with a topologically trivial phase, give rise to topologically-protected, dispersionless boundary states. Using $^{87}$Rb atoms in a momentum-space lattice, we realize fully-tunable condensed matter Hamiltonians, allowing us to probe the dynamics and equilibrium properties of the SSH model. We report on the experimental quantum simulation of this model and observation of the localized topological soliton state through quench dynamics, phase-sensitive injection, and adiabatic preparation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.02811v1-abstract-full').style.display = 'none'; document.getElementById('1607.02811v1-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 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nature Communications 7, 13986 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1605.02155">arXiv:1605.02155</a> <span> [<a href="https://arxiv.org/pdf/1605.02155">pdf</a>, <a href="https://arxiv.org/format/1605.02155">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/10.1088/1748-0221/11/09/C09022">10.1088/1748-0221/11/09/C09022 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Monte-Carlo study of the MRPC prototype for the upgrade of BESIII </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/physics?searchtype=author&query=Sun%2C+S+S">S. S. Sun</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+H+M">H. M. Liu</a>, <a href="/search/physics?searchtype=author&query=Li%2C+W+G">W. G. Li</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Z+Y">Z. Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+H+H">H. H. Liu</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+J+Y">J. Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Yang%2C+R+X">R. X. Yang</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="1605.02155v1-abstract-short" style="display: inline;"> A GEANT4-based simulation is developed for the endcap time of flight (ETOF) upgrade based on multi-gap resistive plate chambers (MRPC) for the BESIII experiment. The MRPC prototype and the simulation method are described. Using a full Monte-Carlo simulation, the influence of high voltage and threshold on time resolution and detection efficiency are investigated. The preliminary results from simula… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.02155v1-abstract-full').style.display = 'inline'; document.getElementById('1605.02155v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1605.02155v1-abstract-full" style="display: none;"> A GEANT4-based simulation is developed for the endcap time of flight (ETOF) upgrade based on multi-gap resistive plate chambers (MRPC) for the BESIII experiment. The MRPC prototype and the simulation method are described. Using a full Monte-Carlo simulation, the influence of high voltage and threshold on time resolution and detection efficiency are investigated. The preliminary results from simulation are presented and are compared with the experimental data taken with the prototype MRPC modules. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1605.02155v1-abstract-full').style.display = 'none'; document.getElementById('1605.02155v1-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 May, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1603.03549">arXiv:1603.03549</a> <span> [<a href="https://arxiv.org/pdf/1603.03549">pdf</a>, <a href="https://arxiv.org/format/1603.03549">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/10.1103/PhysRevD.93.072011">10.1103/PhysRevD.93.072011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New measurement of $胃_{13}$ via neutron capture on hydrogen at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a> , et al. (203 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="1603.03549v2-abstract-short" style="display: inline;"> This article reports an improved independent measurement of neutrino mixing angle $胃_{13}$ at the Daya Bay Reactor Neutrino Experiment. Electron antineutrinos were identified by inverse $尾$-decays with the emitted neutron captured by hydrogen, yielding a data-set with principally distinct uncertainties from that with neutrons captured by gadolinium. With the final two of eight antineutrino detecto… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.03549v2-abstract-full').style.display = 'inline'; document.getElementById('1603.03549v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1603.03549v2-abstract-full" style="display: none;"> This article reports an improved independent measurement of neutrino mixing angle $胃_{13}$ at the Daya Bay Reactor Neutrino Experiment. Electron antineutrinos were identified by inverse $尾$-decays with the emitted neutron captured by hydrogen, yielding a data-set with principally distinct uncertainties from that with neutrons captured by gadolinium. With the final two of eight antineutrino detectors installed, this study used 621 days of data including the previously reported 217-day data set with six detectors. The dominant statistical uncertainty was reduced by 49%. Intensive studies of the cosmogenic muon-induced $^9$Li and fast neutron backgrounds and the neutron-capture energy selection efficiency, resulted in a reduction of the systematic uncertainty by 26%. The deficit in the detected number of antineutrinos at the far detectors relative to the expected number based on the near detectors yielded $\sin^22胃_{13} = 0.071 \pm 0.011$ in the three-neutrino-oscillation framework. The combination of this result with the gadolinium-capture result is also reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.03549v2-abstract-full').style.display = 'none'; document.getElementById('1603.03549v2-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 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages, 23 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 93, 072011 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.05785">arXiv:1601.05785</a> <span> [<a href="https://arxiv.org/pdf/1601.05785">pdf</a>, <a href="https://arxiv.org/format/1601.05785">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Quantum Gases">cond-mat.quant-gas</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Quantum Physics">quant-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevA.93.051602">10.1103/PhysRevA.93.051602 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Atom-optics simulator of lattice transport phenomena </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Meier%2C+E+J">Eric J. Meier</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+A">Fangzhao Alex An</a>, <a href="/search/physics?searchtype=author&query=Gadway%2C+B">Bryce Gadway</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="1601.05785v2-abstract-short" style="display: inline;"> We experimentally investigate a scheme for studying lattice transport phenomena, based on the controlled momentum-space dynamics of ultracold atomic matter waves. In the effective tight-binding models that can be simulated, we demonstrate that this technique allows for a local and time-dependent control over all system parameters, and additionally allows for single-site resolved detection of atomi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05785v2-abstract-full').style.display = 'inline'; document.getElementById('1601.05785v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.05785v2-abstract-full" style="display: none;"> We experimentally investigate a scheme for studying lattice transport phenomena, based on the controlled momentum-space dynamics of ultracold atomic matter waves. In the effective tight-binding models that can be simulated, we demonstrate that this technique allows for a local and time-dependent control over all system parameters, and additionally allows for single-site resolved detection of atomic populations. We demonstrate full control over site-to-site off-diagonal tunneling elements (amplitude and phase) and diagonal site-energies, through the observation of continuous-time quantum walks, Bloch oscillations, and negative tunneling. These capabilities open up new prospects in the experimental study of disordered and topological systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.05785v2-abstract-full').style.display = 'none'; document.getElementById('1601.05785v2-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 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures; 3 pages of supplemental materials</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. A 93, 051602(R) (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.07353">arXiv:1512.07353</a> <span> [<a href="https://arxiv.org/pdf/1512.07353">pdf</a>, <a href="https://arxiv.org/format/1512.07353">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Antineutrino flux and spectrum calculation for spent nuclear fuel for the Daya Bay antineutrino experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ma%2C+X+B">X. B. Ma</a>, <a href="/search/physics?searchtype=author&query=Zhao%2C+Y+F">Y. F. Zhao</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Zhong%2C+W+L">W. L. Zhong</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</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="1512.07353v2-abstract-short" style="display: inline;"> Spent nuclear fuel (SNF) antineutrino flux is an important source of uncertainties for a reactor neutrino flux prediction. However, if one want to determine the contribution of spent fuel, many data are needed, such as the amount of spent fuel in the pool, the time after discharged from the reactor core, the burnup of each assembly, and the antineutrino spectrum of the isotopes in the spend fuel.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07353v2-abstract-full').style.display = 'inline'; document.getElementById('1512.07353v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.07353v2-abstract-full" style="display: none;"> Spent nuclear fuel (SNF) antineutrino flux is an important source of uncertainties for a reactor neutrino flux prediction. However, if one want to determine the contribution of spent fuel, many data are needed, such as the amount of spent fuel in the pool, the time after discharged from the reactor core, the burnup of each assembly, and the antineutrino spectrum of the isotopes in the spend fuel. A method to calculate the contribution of SNF is proposed in this study. In this method, reactor simulation code verified by experiment have been used to simulate the fuel depletion by taking into account more than 2000 isotopes and fission products, the quantity of SNF in each six spend fuel pool, and the antineutrino spectrum of SNF varying with time after SNF discharged from core. Results show that the contribution of SNF to the total antineutrino flux is about 0.26%~0.34%, and the shutdown impact is about 20%. The SNF spectrum would distort the softer part of antineutrino spectra, and the maximum contribution from SNF is about 3.0%, but there is 18\% difference between line evaluate method and under evaluate method. In addition, non-equilibrium effects are also discussed, and the results are compatible with theirs considering the uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07353v2-abstract-full').style.display = 'none'; document.getElementById('1512.07353v2-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 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1508.07166">arXiv:1508.07166</a> <span> [<a href="https://arxiv.org/pdf/1508.07166">pdf</a>, <a href="https://arxiv.org/format/1508.07166">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"> JUNO Conceptual Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adam%2C+T">T. Adam</a>, <a href="/search/physics?searchtype=author&query=An%2C+F">F. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">G. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">N. Anfimov</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">V. Antonelli</a>, <a href="/search/physics?searchtype=author&query=Baccolo%2C+G">G. Baccolo</a>, <a href="/search/physics?searchtype=author&query=Baldoncini%2C+M">M. Baldoncini</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">E. Baussan</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">M. Bellato</a>, <a href="/search/physics?searchtype=author&query=Bezrukov%2C+L">L. Bezrukov</a>, <a href="/search/physics?searchtype=author&query=Bick%2C+D">D. Bick</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Boarin%2C+S">S. Boarin</a>, <a href="/search/physics?searchtype=author&query=Brigatti%2C+A">A. Brigatti</a>, <a href="/search/physics?searchtype=author&query=Brugi%C3%A8re%2C+T">T. Brugi猫re</a>, <a href="/search/physics?searchtype=author&query=Brugnera%2C+R">R. Brugnera</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+M+B">M. Buizza Avanzini</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cabrera%2C+A">A. Cabrera</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+H">H. Cai</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/physics?searchtype=author&query=Cammi%2C+A">A. Cammi</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G">G. Cao</a> , et al. (372 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1508.07166v2-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine the neutrino mass hierarchy using an underground liquid scintillator detector. It is located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. The experimental hall, spanning more than 50 meters, is under a granite mountain of over 700 m overburden. Within six years of running, the dete… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.07166v2-abstract-full').style.display = 'inline'; document.getElementById('1508.07166v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.07166v2-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO) is proposed to determine the neutrino mass hierarchy using an underground liquid scintillator detector. It is located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. The experimental hall, spanning more than 50 meters, is under a granite mountain of over 700 m overburden. Within six years of running, the detection of reactor antineutrinos can resolve the neutrino mass hierarchy at a confidence level of 3-4$蟽$, and determine neutrino oscillation parameters $\sin^2胃_{12}$, $螖m^2_{21}$, and $|螖m^2_{ee}|$ to an accuracy of better than 1%. The JUNO detector can be also used to study terrestrial and extra-terrestrial neutrinos and new physics beyond the Standard Model. The central detector contains 20,000 tons liquid scintillator with an acrylic sphere of 35 m in diameter. $\sim$17,000 508-mm diameter PMTs with high quantum efficiency provide $\sim$75% optical coverage. The current choice of the liquid scintillator is: linear alkyl benzene (LAB) as the solvent, plus PPO as the scintillation fluor and a wavelength-shifter (Bis-MSB). The number of detected photoelectrons per MeV is larger than 1,100 and the energy resolution is expected to be 3% at 1 MeV. The calibration system is designed to deploy multiple sources to cover the entire energy range of reactor antineutrinos, and to achieve a full-volume position coverage inside the detector. The veto system is used for muon detection, muon induced background study and reduction. It consists of a Water Cherenkov detector and a Top Tracker system. The readout system, the detector control system and the offline system insure efficient and stable data acquisition and processing. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.07166v2-abstract-full').style.display = 'none'; document.getElementById('1508.07166v2-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, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">328 pages, 211 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1508.04233">arXiv:1508.04233</a> <span> [<a href="https://arxiv.org/pdf/1508.04233">pdf</a>, <a href="https://arxiv.org/format/1508.04233">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.116.061801">10.1103/PhysRevLett.116.061801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a> , et al. (200 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1508.04233v1-abstract-short" style="display: inline;"> This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9~GW$_{th}$ nuclear reactors with six detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1,579~m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296,721 and 41,589 inverse beta decay (IBD) candidates were detected in the near and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.04233v1-abstract-full').style.display = 'inline'; document.getElementById('1508.04233v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.04233v1-abstract-full" style="display: none;"> This Letter reports a measurement of the flux and energy spectrum of electron antineutrinos from six 2.9~GW$_{th}$ nuclear reactors with six detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1,579~m) underground experimental halls in the Daya Bay experiment. Using 217 days of data, 296,721 and 41,589 inverse beta decay (IBD) candidates were detected in the near and far halls, respectively. The measured IBD yield is (1.55 $\pm$ 0.04) $\times$ 10$^{-18}$~cm$^2$/GW/day or (5.92 $\pm$ 0.14) $\times$ 10$^{-43}$~cm$^2$/fission. This flux measurement is consistent with previous short-baseline reactor antineutrino experiments and is $0.946\pm0.022$ ($0.991\pm0.023$) relative to the flux predicted with the Huber+Mueller (ILL+Vogel) fissile antineutrino model. The measured IBD positron energy spectrum deviates from both spectral predictions by more than 2$蟽$ over the full energy range with a local significance of up to $\sim$4$蟽$ between 4-6 MeV. A reactor antineutrino spectrum of IBD reactions is extracted from the measured positron energy spectrum for model-independent predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.04233v1-abstract-full').style.display = 'none'; document.getElementById('1508.04233v1-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 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 116, 061801 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1508.03943">arXiv:1508.03943</a> <span> [<a href="https://arxiv.org/pdf/1508.03943">pdf</a>, <a href="https://arxiv.org/format/1508.03943">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/10.1016/j.nima.2015.11.144">10.1016/j.nima.2015.11.144 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Detector System of The Daya Bay Reactor Neutrino Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Beavis%2C+D">D. Beavis</a>, <a href="/search/physics?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+R+L">R. L. Brown</a>, <a href="/search/physics?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+W+T">W. T. Chan</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+Y">H. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+M+J">M. J. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a> , et al. (310 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1508.03943v2-abstract-short" style="display: inline;"> The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of $\bar谓_e$ oscillations over km-baselines. Subsequent data has provided the world's most precise measurement of $\rm{sin}^22胃_{13}$ and the effective mass splitting $螖m_{ee}^2$. The experiment is located in Daya Bay, China where the cluster of six nucl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.03943v2-abstract-full').style.display = 'inline'; document.getElementById('1508.03943v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1508.03943v2-abstract-full" style="display: none;"> The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of $\bar谓_e$ oscillations over km-baselines. Subsequent data has provided the world's most precise measurement of $\rm{sin}^22胃_{13}$ and the effective mass splitting $螖m_{ee}^2$. The experiment is located in Daya Bay, China where the cluster of six nuclear reactors is among the world's most prolific sources of electron antineutrinos. Multiple antineutrino detectors are deployed in three underground water pools at different distances from the reactor cores to search for deviations in the antineutrino rate and energy spectrum due to neutrino mixing. Instrumented with photomultiplier tubes (PMTs), the water pools serve as shielding against natural radioactivity from the surrounding rock and provide efficient muon tagging. Arrays of resistive plate chambers over the top of each pool provide additional muon detection. The antineutrino detectors were specifically designed for measurements of the antineutrino flux with minimal systematic uncertainty. Relative detector efficiencies between the near and far detectors are known to better than 0.2%. With the unblinding of the final two detectors' baselines and target masses, a complete description and comparison of the eight antineutrino detectors can now be presented. This paper describes the Daya Bay detector systems, consisting of eight antineutrino detectors in three instrumented water pools in three underground halls, and their operation through the first year of eight detector data-taking. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1508.03943v2-abstract-full').style.display = 'none'; document.getElementById('1508.03943v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">52 pages, 51 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods A 811(2016) 133-161 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.05613">arXiv:1507.05613</a> <span> [<a href="https://arxiv.org/pdf/1507.05613">pdf</a>, <a href="https://arxiv.org/ps/1507.05613">ps</a>, <a href="https://arxiv.org/format/1507.05613">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/10.1088/0954-3899/43/3/030401">10.1088/0954-3899/43/3/030401 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutrino Physics with JUNO </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=An%2C+F">Fengpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+G">Guangpeng An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Qi An</a>, <a href="/search/physics?searchtype=author&query=Antonelli%2C+V">Vito Antonelli</a>, <a href="/search/physics?searchtype=author&query=Baussan%2C+E">Eric Baussan</a>, <a href="/search/physics?searchtype=author&query=Beacom%2C+J">John Beacom</a>, <a href="/search/physics?searchtype=author&query=Bezrukov%2C+L">Leonid Bezrukov</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">Simon Blyth</a>, <a href="/search/physics?searchtype=author&query=Brugnera%2C+R">Riccardo Brugnera</a>, <a href="/search/physics?searchtype=author&query=Avanzini%2C+M+B">Margherita Buizza Avanzini</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">Jose Busto</a>, <a href="/search/physics?searchtype=author&query=Cabrera%2C+A">Anatael Cabrera</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+H">Hao Cai</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+X">Xiao Cai</a>, <a href="/search/physics?searchtype=author&query=Cammi%2C+A">Antonio Cammi</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G">Guofu Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">Jun Cao</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Yun Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S">Shenjian Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Yixue Chen</a>, <a href="/search/physics?searchtype=author&query=Chiesa%2C+D">Davide Chiesa</a>, <a href="/search/physics?searchtype=author&query=Clemenza%2C+M">Massimiliano Clemenza</a>, <a href="/search/physics?searchtype=author&query=Clerbaux%2C+B">Barbara Clerbaux</a>, <a href="/search/physics?searchtype=author&query=Conrad%2C+J">Janet Conrad</a> , et al. (203 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="1507.05613v2-abstract-short" style="display: inline;"> The Jiangmen Underground Neutrino Observatory (JUNO), a 20 kton multi-purpose underground liquid scintillator detector, was proposed with the determination of the neutrino mass hierarchy as a primary physics goal. It is also capable of observing neutrinos from terrestrial and extra-terrestrial sources, including supernova burst neutrinos, diffuse supernova neutrino background, geoneutrinos, atmosp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.05613v2-abstract-full').style.display = 'inline'; document.getElementById('1507.05613v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.05613v2-abstract-full" style="display: none;"> The Jiangmen Underground Neutrino Observatory (JUNO), a 20 kton multi-purpose underground liquid scintillator detector, was proposed with the determination of the neutrino mass hierarchy as a primary physics goal. It is also capable of observing neutrinos from terrestrial and extra-terrestrial sources, including supernova burst neutrinos, diffuse supernova neutrino background, geoneutrinos, atmospheric neutrinos, solar neutrinos, as well as exotic searches such as nucleon decays, dark matter, sterile neutrinos, etc. We present the physics motivations and the anticipated performance of the JUNO detector for various proposed measurements. By detecting reactor antineutrinos from two power plants at 53-km distance, JUNO will determine the neutrino mass hierarchy at a 3-4 sigma significance with six years of running. The measurement of antineutrino spectrum will also lead to the precise determination of three out of the six oscillation parameters to an accuracy of better than 1\%. Neutrino burst from a typical core-collapse supernova at 10 kpc would lead to ~5000 inverse-beta-decay events and ~2000 all-flavor neutrino-proton elastic scattering events in JUNO. Detection of DSNB would provide valuable information on the cosmic star-formation rate and the average core-collapsed neutrino energy spectrum. Geo-neutrinos can be detected in JUNO with a rate of ~400 events per year, significantly improving the statistics of existing geoneutrino samples. The JUNO detector is sensitive to several exotic searches, e.g. proton decay via the $p\to K^++\bar谓$ decay channel. The JUNO detector will provide a unique facility to address many outstanding crucial questions in particle and astrophysics. It holds the great potential for further advancing our quest to understanding the fundamental properties of neutrinos, one of the building blocks of our Universe. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.05613v2-abstract-full').style.display = 'none'; document.getElementById('1507.05613v2-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 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 20 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Version submitted to Journal of Physics G, with minor typo corrections. 222 Pages, 147 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Phys. G 43 (2016) 030401 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1505.03456">arXiv:1505.03456</a> <span> [<a href="https://arxiv.org/pdf/1505.03456">pdf</a>, <a href="https://arxiv.org/format/1505.03456">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.115.111802">10.1103/PhysRevLett.115.111802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/physics?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a> , et al. (194 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1505.03456v2-abstract-short" style="display: inline;"> We report a new measurement of electron antineutrino disappearance using the fully-constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected from October 2012 to November 2013 resulted in a total exposure of 6.9$\times$10$^5$ GW$_{\rm th}$-ton-days, a 3.6 times increase over our pre… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.03456v2-abstract-full').style.display = 'inline'; document.getElementById('1505.03456v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1505.03456v2-abstract-full" style="display: none;"> We report a new measurement of electron antineutrino disappearance using the fully-constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors were installed in the summer of 2012. Including the 404 days of data collected from October 2012 to November 2013 resulted in a total exposure of 6.9$\times$10$^5$ GW$_{\rm th}$-ton-days, a 3.6 times increase over our previous results. Improvements in energy calibration limited variations between detectors to 0.2%. Removal of six $^{241}$Am-$^{13}$C radioactive calibration sources reduced the background by a factor of two for the detectors in the experimental hall furthest from the reactors. Direct prediction of the antineutrino signal in the far detectors based on the measurements in the near detectors explicitly minimized the dependence of the measurement on models of reactor antineutrino emission. The uncertainties in our estimates of $\sin^{2}2胃_{13}$ and $|螖m^2_{ee}|$ were halved as a result of these improvements. Analysis of the relative antineutrino rates and energy spectra between detectors gave $\sin^{2}2胃_{13} = 0.084\pm0.005$ and $|螖m^{2}_{ee}|= (2.42\pm0.11) \times 10^{-3}$ eV$^2$ in the three-neutrino framework. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1505.03456v2-abstract-full').style.display = 'none'; document.getElementById('1505.03456v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 September, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 May, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated to match final published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 115, 111802 (2015) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1504.04681">arXiv:1504.04681</a> <span> [<a href="https://arxiv.org/pdf/1504.04681">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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/10.1088/1674-1137/40/1/016001">10.1088/1674-1137/40/1/016001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Aging effect in the BESIII drift chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Dong%2C+M+Y">M. Y. Dong</a>, <a href="/search/physics?searchtype=author&query=Xiu%2C+Q+L">Q. L. Xiu</a>, <a href="/search/physics?searchtype=author&query=Wu%2C+L+H">L. H. Wu</a>, <a href="/search/physics?searchtype=author&query=Wu%2C+Z">Z. Wu</a>, <a href="/search/physics?searchtype=author&query=Qin%2C+Z+H">Z. H. Qin</a>, <a href="/search/physics?searchtype=author&query=Shen%2C+P">P. Shen</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/physics?searchtype=author&query=Ju%2C+X+D">X. D. Ju</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+Y">Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Zhu%2C+K">K. Zhu</a>, <a href="/search/physics?searchtype=author&query=Ouyang%2C+Q">Q. Ouyang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+B">Y. B. 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="1504.04681v2-abstract-short" style="display: inline;"> As the main tracking detector of BESIII, the drift chamber works for accurate measurements of the tracking and the momentum of the charged particles decayed from the reaction of BEPCII e+ and e-. After operation six years, the drift chamber is suffering from aging problems due to huge beam related background. The gains of the cells in the first ten layers experience an obvious decrease, reaching a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.04681v2-abstract-full').style.display = 'inline'; document.getElementById('1504.04681v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1504.04681v2-abstract-full" style="display: none;"> As the main tracking detector of BESIII, the drift chamber works for accurate measurements of the tracking and the momentum of the charged particles decayed from the reaction of BEPCII e+ and e-. After operation six years, the drift chamber is suffering from aging problems due to huge beam related background. The gains of the cells in the first ten layers experience an obvious decrease, reaching a maximum of about 29% for the first layer cells. Two calculation methods for the gains change (Bhabha events and accumulated charges with 0.3% aging ratio for inner chamber cells) get almost the same results. For the Malter effect encountered by the inner drift chamber in Jan., 2012, about 0.2% water vapor was added to MDC gas mixture to solve this cathode aging problem. These results provide an important reference for MDC operation high voltage setting and the upgrade of the inner drift chamber. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1504.04681v2-abstract-full').style.display = 'none'; document.getElementById('1504.04681v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 August, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 18 April, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 6 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">ACM Class:</span> J.2 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.6468">arXiv:1406.6468</a> <span> [<a href="https://arxiv.org/pdf/1406.6468">pdf</a>, <a href="https://arxiv.org/ps/1406.6468">ps</a>, <a href="https://arxiv.org/format/1406.6468">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/10.1103/PhysRevD.90.071101">10.1103/PhysRevD.90.071101 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Independent Measurement of Theta13 via Neutron Capture on Hydrogen at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a> , et al. (210 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1406.6468v2-abstract-short" style="display: inline;"> A new measurement of the $胃_{13}$ mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.6468v2-abstract-full').style.display = 'inline'; document.getElementById('1406.6468v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1406.6468v2-abstract-full" style="display: none;"> A new measurement of the $胃_{13}$ mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of $胃_{13}$ measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2.9 GW$_{th}$ reactors, the rate deficit observed at the far hall is interpreted as $\sin^22胃_{13}=0.083\pm0.018$ in the three-flavor oscillation model. When combined with the gadolinium-capture result from Daya Bay, we obtain $\sin^22胃_{13}=0.089\pm0.008$ as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1406.6468v2-abstract-full').style.display = 'none'; document.getElementById('1406.6468v2-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 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 25 June, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 90, 071101 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.6807">arXiv:1405.6807</a> <span> [<a href="https://arxiv.org/pdf/1405.6807">pdf</a>, <a href="https://arxiv.org/format/1405.6807">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Uncertainties analysis of fission fraction for reactor antineutrino experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ma%2C+X+B">X. B. Ma</a>, <a href="/search/physics?searchtype=author&query=Lu%2C+F">F. Lu</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+L+Z">L. Z. Wang</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/physics?searchtype=author&query=Zhong%2C+W+L">W. L. Zhong</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</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="1405.6807v2-abstract-short" style="display: inline;"> Reactor antineutrino experiment are used to study neutrino oscillation, search for signatures of nonstandard neutrino interaction, and monitor reactor operation for safeguard application. Reactor simulation is an important source of uncertainties for a reactor neutrino experiment. Commercial code is used for reactor simulation to evaluate fission fraction in Daya Bay neutrino experiment, but the s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6807v2-abstract-full').style.display = 'inline'; document.getElementById('1405.6807v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.6807v2-abstract-full" style="display: none;"> Reactor antineutrino experiment are used to study neutrino oscillation, search for signatures of nonstandard neutrino interaction, and monitor reactor operation for safeguard application. Reactor simulation is an important source of uncertainties for a reactor neutrino experiment. Commercial code is used for reactor simulation to evaluate fission fraction in Daya Bay neutrino experiment, but the source code doesn't open to our researcher results from commercial secret. In this study, The open source code DRAGON was improved to calculate the fission rates of the four most important isotopes in fissions, $^{235}$U,$^{238}$U,$^{239}$Pu and $^{241}$Pu, and then was validated for PWRs using the Takahama-3 benchmark. The fission fraction results are consistent with those of MIT's results. Then, fission fraction of Daya Bay reactor core was calculated by using improved DRAGON code, and the fission fraction calculated by DRAGON agreed well with these calculated by SCIENCE. The average deviation less than 5\% for all the four isotopes. The correlation coefficient matrix between $^{235}$U,$^{238}$U,$^{239}$Pu and $^{241}$Pu were also studied using DRAGON, and then the uncertainty of the antineutrino flux by the fission fraction was calculated by using the correlation coefficient matrix. The uncertainty of the antineutrino flux by the fission fraction simulation is 0.6\% per core for Daya Bay antineutrino experiment. The uncertainties source of fission fraction calculation need further to be studied in the future. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.6807v2-abstract-full').style.display = 'none'; document.getElementById('1405.6807v2-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 March, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">arXiv admin note: substantial text overlap with arXiv:1109.5379, arXiv:1101.2266 by other authors</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1211.2283">arXiv:1211.2283</a> <span> [<a href="https://arxiv.org/pdf/1211.2283">pdf</a>, <a href="https://arxiv.org/ps/1211.2283">ps</a>, <a href="https://arxiv.org/format/1211.2283">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="Data Analysis, Statistics and Probability">physics.data-an</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.87.032007">10.1103/PhysRevD.87.032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurements of Baryon Pair Decays of $蠂_{cJ}$ Mesons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Ablikim%2C+M">M. Ablikim</a>, <a href="/search/physics?searchtype=author&query=Achasov%2C+M+N">M. N. Achasov</a>, <a href="/search/physics?searchtype=author&query=Albayrak%2C+O">O. Albayrak</a>, <a href="/search/physics?searchtype=author&query=Ambrose%2C+D+J">D. J. Ambrose</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+F">F. F. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/physics?searchtype=author&query=Ban%2C+Y">Y. Ban</a>, <a href="/search/physics?searchtype=author&query=Becker%2C+J">J. Becker</a>, <a href="/search/physics?searchtype=author&query=Bennett%2C+J+V">J. V. Bennett</a>, <a href="/search/physics?searchtype=author&query=Bertani%2C+M">M. Bertani</a>, <a href="/search/physics?searchtype=author&query=Bian%2C+J+M">J. M. Bian</a>, <a href="/search/physics?searchtype=author&query=Boger%2C+E">E. Boger</a>, <a href="/search/physics?searchtype=author&query=Bondarenko%2C+O">O. Bondarenko</a>, <a href="/search/physics?searchtype=author&query=Boyko%2C+I">I. Boyko</a>, <a href="/search/physics?searchtype=author&query=Briere%2C+R+A">R. A. Briere</a>, <a href="/search/physics?searchtype=author&query=Bytev%2C+V">V. Bytev</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+X">X. Cai</a>, <a href="/search/physics?searchtype=author&query=Cakir%2C+O">O. Cakir</a>, <a href="/search/physics?searchtype=author&query=Calcaterra%2C+A">A. Calcaterra</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cetin%2C+S+A">S. A. Cetin</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chelkov%2C+G">G. Chelkov</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+G">G. Chen</a> , et al. (326 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="1211.2283v2-abstract-short" style="display: inline;"> Using 106 $\times 10^{6}$ $蠄^{\prime}$ decays collected with the BESIII detector at the BEPCII, three decays of $蠂_{cJ}$ ($J=0,1,2$) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in the final state have been studied. The branching fractions are measured to be $\cal{B}$$(蠂_{c0,1,2}\rightarrow螞\bar螞) =(33.3 \pm 2.0 \pm 2.6)\times 10^{-5}$, $(12.2 \pm 1.1 \pm 1.1)\times 10^{-5}$,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.2283v2-abstract-full').style.display = 'inline'; document.getElementById('1211.2283v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1211.2283v2-abstract-full" style="display: none;"> Using 106 $\times 10^{6}$ $蠄^{\prime}$ decays collected with the BESIII detector at the BEPCII, three decays of $蠂_{cJ}$ ($J=0,1,2$) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in the final state have been studied. The branching fractions are measured to be $\cal{B}$$(蠂_{c0,1,2}\rightarrow螞\bar螞) =(33.3 \pm 2.0 \pm 2.6)\times 10^{-5}$, $(12.2 \pm 1.1 \pm 1.1)\times 10^{-5}$, $(20.8 \pm 1.6 \pm 2.3)\times 10^{-5}$; $\cal{B}$$(蠂_{c0,1,2}\rightarrow危^{0}\bar危^{0})$ = $(47.8 \pm 3.4 \pm 3.9)\times 10^{-5}$, $(3.8 \pm 1.0 \pm 0.5)\times 10^{-5}$, $(4.0 \pm 1.1 \pm 0.5) \times 10^{-5}$; and $\cal{B}$$(蠂_{c0,1,2}\rightarrow危^{+}\bar危^{-})$ = $(45.4 \pm 4.2 \pm 3.0)\times 10^{-5}$, $(5.4 \pm 1.5 \pm 0.5)\times 10^{-5}$, $(4.9 \pm 1.9 \pm 0.7)\times 10^{-5}$, where the first error is statistical and the second is systematic. Upper limits on the branching fractions for the decays of $蠂_{c1,2}\rightarrow危^{0}\bar危^{0}$, $危^{+}\bar危^{-}$, are estimated to be $\cal{B}$$(蠂_{c1}\rightarrow危^{0}\bar危^{0}) < 6.2\times 10^{-5}$, $\cal{B}$$(蠂_{c2}\rightarrow危^{0}\bar危^{0}) < 6.5\times 10^{-5}$, $\cal{B}$$(蠂_{c1}\rightarrow危^{+}\bar危^{-}) < 8.7\times 10^{-5}$ and $\cal{B}$$(蠂_{c2}\rightarrow危^{+}\bar危^{-}) < 8.8\times 10^{-5}$ at the 90% confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1211.2283v2-abstract-full').style.display = 'none'; document.getElementById('1211.2283v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 March, 2013; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 7 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 87, 032007 (2013) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1202.6181">arXiv:1202.6181</a> <span> [<a href="https://arxiv.org/pdf/1202.6181">pdf</a>, <a href="https://arxiv.org/ps/1202.6181">ps</a>, <a href="https://arxiv.org/format/1202.6181">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div 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.2012.05.030">10.1016/j.nima.2012.05.030 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A side-by-side comparison of Daya Bay antineutrino detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/physics?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/physics?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/physics?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/physics?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+R+L">R. L. Brown</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/physics?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/physics?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+J">S. J. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+X+C">X. C. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+X+H">X. H. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+X+S">X. S. Chen</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/physics?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/physics?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a> , et al. (218 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="1202.6181v1-abstract-short" style="display: inline;"> The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $胃_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22胃_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimenta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.6181v1-abstract-full').style.display = 'inline'; document.getElementById('1202.6181v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1202.6181v1-abstract-full" style="display: none;"> The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $胃_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22胃_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimental Hall 1, with steady data-taking beginning September 23, 2011. A comparison of the data collected over the subsequent three months indicates that the detectors are functionally identical, and that detector-related systematic uncertainties exceed requirements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.6181v1-abstract-full').style.display = 'none'; document.getElementById('1202.6181v1-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 February, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 36 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instr. Meth A 685, 78-97 (2012) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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