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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.13158">arXiv:2212.13158</a> <span> [<a href="https://arxiv.org/pdf/2212.13158">pdf</a>, <a href="https://arxiv.org/format/2212.13158">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168400">10.1016/j.nima.2023.168400 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of the 1-ton Prototype Neutrino Detector at CJPL-I </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Wu%2C+Y">Yiyang Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+L">Lin Zhao</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+A">Aiqiang Zhang</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+B">Bin Zhang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.13158v2-abstract-short" style="display: inline;"> China Jinping Underground Laboratory provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator, we tested its experimental hardware, performed the detector calibration and simulation, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We inves… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.13158v2-abstract-full').style.display = 'inline'; document.getElementById('2212.13158v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.13158v2-abstract-full" style="display: none;"> China Jinping Underground Laboratory provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator, we tested its experimental hardware, performed the detector calibration and simulation, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We investigated the radon background and implemented the nitrogen sealing technology to control it. This paper presents the details of these studies and will serve as a key reference for the construction and optimization of the future large detector of JNE. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.13158v2-abstract-full').style.display = 'none'; document.getElementById('2212.13158v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 June, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.04010">arXiv:2108.04010</a> <span> [<a href="https://arxiv.org/pdf/2108.04010">pdf</a>, <a href="https://arxiv.org/format/2108.04010">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/ac66cc">10.1088/1674-1137/ac66cc <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Muon-induced Neutron Production at the China Jinping Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+L">Lin Zhao</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Peters%2C+L+B">Lars Bathe Peters</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chouaki%2C+M">Mourad Chouaki</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Liang%2C+Y">Ye Liang</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Wu%2C+Y">Yiyang Wu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Yeh%2C+M">Minfang Yeh</a>, <a href="/search/hep-ex?searchtype=author&query=Zhang%2C+B">Bin Zhang</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.04010v2-abstract-short" style="display: inline;"> Solar, terrestrial, and supernova neutrino experiments are subject to muon-induced radioactive backgrounds. The China Jinping Underground Laboratory (CJPL), with its unique advantage of a 2400 m rock coverage and long distance from nuclear power plants, is ideal for MeV-scale neutrino experiments. Using a 1-ton prototype detector of the Jinping Neutrino Experiment (JNE), we detected 343 high-energ… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04010v2-abstract-full').style.display = 'inline'; document.getElementById('2108.04010v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.04010v2-abstract-full" style="display: none;"> Solar, terrestrial, and supernova neutrino experiments are subject to muon-induced radioactive backgrounds. The China Jinping Underground Laboratory (CJPL), with its unique advantage of a 2400 m rock coverage and long distance from nuclear power plants, is ideal for MeV-scale neutrino experiments. Using a 1-ton prototype detector of the Jinping Neutrino Experiment (JNE), we detected 343 high-energy cosmic-ray muons and (7.86$ \pm $3.97) muon-induced neutrons from an 820.28-day dataset at the first phase of CJPL (CJPL-I). Based on the muon-induced neutrons, we measured the corresponding muon-induced neutron yield in a liquid scintillator to be $ (3.44 \pm 1.86_{\rm stat.}\pm 0.76_{\rm syst.})\times 10^{-4}渭^{-1}\rm g^{-1}cm^{2} $ at an average muon energy of \SI{340}{GeV}. We provided the first study for such neutron background at CJPL. A global fit including this measurement shows a power-law coefficient of (0.75$ \pm $0.02) for the dependence of the neutron yield at the liquid scintillator on muon energy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.04010v2-abstract-full').style.display = 'none'; document.getElementById('2108.04010v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 9 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2022 Chinese Phys. C 46 085001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.15925">arXiv:2007.15925</a> <span> [<a href="https://arxiv.org/pdf/2007.15925">pdf</a>, <a href="https://arxiv.org/format/2007.15925">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/10.1088/1674-1137/abccae">10.1088/1674-1137/abccae <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Muon Flux Measurement at China Jinping Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Bathe-Peters%2C+L">Lars Bathe-Peters</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chouaki%2C+M">Mourad Chouaki</a>, <a href="/search/hep-ex?searchtype=author&query=Dou%2C+W">Wei Dou</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+J">Jinjing Li</a>, <a href="/search/hep-ex?searchtype=author&query=Liu%2C+Q">Qian Liu</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+G">Guang Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Luo%2C+W">Wentai Luo</a>, <a href="/search/hep-ex?searchtype=author&query=Qi%2C+M">Ming Qi</a>, <a href="/search/hep-ex?searchtype=author&query=Shao%2C+W">Wenhui Shao</a>, <a href="/search/hep-ex?searchtype=author&query=Tang%2C+J">Jian Tang</a>, <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+B">Benda Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+T">Tong Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Xu%2C+W">Weiran Xu</a>, <a href="/search/hep-ex?searchtype=author&query=Yang%2C+Y">Yuzi Yang</a>, <a href="/search/hep-ex?searchtype=author&query=Yeh%2C+M">Minfang Yeh</a>, <a href="/search/hep-ex?searchtype=author&query=Zhao%2C+L">Lin Zhao</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="2007.15925v2-abstract-short" style="display: inline;"> China Jinping Underground Laboratory (CJPL) is ideal for studying solar-, geo-, and supernova neutrinos. A precise measurement of the cosmic-ray background would play an essential role in proceeding with the R\&D research for these MeV-scale neutrino experiments. Using a 1-ton prototype detector for the Jinping Neutrino Experiment (JNE), we detected 264 high-energy muon events from a 645.2-day dat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.15925v2-abstract-full').style.display = 'inline'; document.getElementById('2007.15925v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.15925v2-abstract-full" style="display: none;"> China Jinping Underground Laboratory (CJPL) is ideal for studying solar-, geo-, and supernova neutrinos. A precise measurement of the cosmic-ray background would play an essential role in proceeding with the R\&D research for these MeV-scale neutrino experiments. Using a 1-ton prototype detector for the Jinping Neutrino Experiment (JNE), we detected 264 high-energy muon events from a 645.2-day dataset at the first phase of CJPL (CJPL-I), reconstructed their directions, and measured the cosmic-ray muon flux to be $(3.53\pm0.22_{\text{stat.}}\pm0.07_{\text{sys.}})\times10^{-10}$ cm$^{-2}$s$^{-1}$. The observed angular distributions indicate the leakage of cosmic-ray muon background and agree with the simulation accounting for Jinping mountain's terrain. A survey of muon fluxes at different laboratory locations situated under mountains and below mine shaft indicated that the former is generally a factor of $(4\pm2)$ larger than the latter with the same vertical overburden. This study provides a convenient back-of-the-envelope estimation for muon flux of an underground experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.15925v2-abstract-full').style.display = 'none'; document.getElementById('2007.15925v2-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 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">Journal ref:</span> Chin.Phys.C 45 (2021) 2, 025001 </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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/hep-ex?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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=Adey%2C+D">D. Adey</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Deng%2C+F+S">F. S. Deng</a>, <a href="/search/hep-ex?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/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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?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/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?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/1706.04506">arXiv:1706.04506</a> <span> [<a href="https://arxiv.org/pdf/1706.04506">pdf</a>, <a href="https://arxiv.org/ps/1706.04506">ps</a>, <a href="https://arxiv.org/format/1706.04506">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.2017.11.006">10.1016/j.nima.2017.11.006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Assay of low-background stainless steel by smelting for the neutrino experiment at Jinping </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Zeng%2C+Z">Zhi Zeng</a>, <a href="/search/hep-ex?searchtype=author&query=Yao%2C+C">Chunfa Yao</a>, <a href="/search/hep-ex?searchtype=author&query=Li%2C+M">Mohan Li</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+Z">Ziyi Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Guo%2C+L">Lei Guo</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1706.04506v2-abstract-short" style="display: inline;"> To ensure compliance with the experimental requirement for ultra-low background, in this study the radioactivity of stainless steels manufactured by smelting is thoroughly investigated. Raw materials, stage samples, and commercial samples are investigated by glow discharge mass spectrometry (GDMS) and/or with high-purity germanium detectors (HPGe) at both the ground level and/or the China Jinping… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.04506v2-abstract-full').style.display = 'inline'; document.getElementById('1706.04506v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1706.04506v2-abstract-full" style="display: none;"> To ensure compliance with the experimental requirement for ultra-low background, in this study the radioactivity of stainless steels manufactured by smelting is thoroughly investigated. Raw materials, stage samples, and commercial samples are investigated by glow discharge mass spectrometry (GDMS) and/or with high-purity germanium detectors (HPGe) at both the ground level and/or the China Jinping Underground Laboratory. Custom-made stainless steel samples are found to have radioactivity levels comparable to those in other low-background experiments. The comprehensive results regarding the radioactivity level in materials to be used in the proposed Jinping Neutrino Experiment are reported. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.04506v2-abstract-full').style.display = 'none'; document.getElementById('1706.04506v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">21 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Nuclear Inst. and Methods in Physics Research, A NIMA60249 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> NIM A 881 (2017) 65-71 </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/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?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/1612.00133">arXiv:1612.00133</a> <span> [<a href="https://arxiv.org/pdf/1612.00133">pdf</a>, <a href="https://arxiv.org/ps/1612.00133">ps</a>, <a href="https://arxiv.org/format/1612.00133">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="Geophysics">physics.geo-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/10.1103/PhysRevD.95.053001">10.1103/PhysRevD.95.053001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Geoneutrinos at Jinping: Flux prediction and oscillation analysis </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Wan%2C+L">Linyan Wan</a>, <a href="/search/hep-ex?searchtype=author&query=Hussain%2C+G">Ghulam Hussain</a>, <a href="/search/hep-ex?searchtype=author&query=Wang%2C+Z">Zhe Wang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S">Shaomin Chen</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.00133v3-abstract-short" style="display: inline;"> Geoneutrinos are electron antineutrinos ($\bar谓_e$) generated by the beta-decays of radionuclides naturally occurring inside the Earth, in particular $^{238}$U, $^{232}$Th, and $^{40}$K. Measurement of these neutrinos provides powerful constraints on the radiogenic heat of the Earth and tests on the Earth models. Since the prediction of $\bar谓_e$'s in geoneutrino flux is subject to neutrino oscill… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.00133v3-abstract-full').style.display = 'inline'; document.getElementById('1612.00133v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.00133v3-abstract-full" style="display: none;"> Geoneutrinos are electron antineutrinos ($\bar谓_e$) generated by the beta-decays of radionuclides naturally occurring inside the Earth, in particular $^{238}$U, $^{232}$Th, and $^{40}$K. Measurement of these neutrinos provides powerful constraints on the radiogenic heat of the Earth and tests on the Earth models. Since the prediction of $\bar谓_e$'s in geoneutrino flux is subject to neutrino oscillation effects, we performed a calculation including detailed oscillation analysis in the propagation of geoneutrinos and reactor neutrinos generated around the Earth. The expected geoneutrino signal, the reactor neutrino background rates and the systematic error budget are provided for a proposed 3-kiloton neutrino detector at the Jinping underground lab in Sichuan, China. In addition, we evaluated sensitivities for the geoneutrino flux, Th/U ratio and power of a possible fission reactor in the interior of Earth. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.00133v3-abstract-full').style.display = 'none'; document.getElementById('1612.00133v3-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 February, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 95, 053001 (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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?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/1608.01661">arXiv:1608.01661</a> <span> [<a href="https://arxiv.org/pdf/1608.01661">pdf</a>, <a href="https://arxiv.org/format/1608.01661">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Study of the wave packet treatment of neutrino oscillation at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Chukanov%2C+A">A. Chukanov</a> , et al. (195 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="1608.01661v2-abstract-short" style="display: inline;"> The disappearance of reactor $\bar谓_e$ observed by the Daya Bay experiment is examined in the framework of a model in which the neutrino is described by a wave packet with a relative intrinsic momentum dispersion $蟽_\text{rel}$. Three pairs of nuclear reactors and eight antineutrino detectors, each with good energy resolution, distributed among three experimental halls, supply a high-statistics sa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.01661v2-abstract-full').style.display = 'inline'; document.getElementById('1608.01661v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1608.01661v2-abstract-full" style="display: none;"> The disappearance of reactor $\bar谓_e$ observed by the Daya Bay experiment is examined in the framework of a model in which the neutrino is described by a wave packet with a relative intrinsic momentum dispersion $蟽_\text{rel}$. Three pairs of nuclear reactors and eight antineutrino detectors, each with good energy resolution, distributed among three experimental halls, supply a high-statistics sample of $\bar谓_e$ acquired at nine different baselines. This provides a unique platform to test the effects which arise from the wave packet treatment of neutrino oscillation. The modified survival probability formula was used to fit Daya Bay data, providing the first experimental limits: $2.38 \cdot 10^{-17} < 蟽_{\rm rel} < 0.23$. Treating the dimensions of the reactor cores and detectors as constraints, the limits are improved: $10^{-14} \lesssim 蟽_{\rm rel} < 0.23$, and an upper limit of $蟽_{\rm rel} <0.20$ is obtained. All limits correspond to a 95\% C.L. Furthermore, the effect due to the wave packet nature of neutrino oscillation is found to be insignificant for reactor antineutrinos detected by the Daya Bay experiment thus ensuring an unbiased measurement of the oscillation parameters $\sin^22胃_{13}$ and $螖m^2_{32}$ within the plane wave model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1608.01661v2-abstract-full').style.display = 'none'; document.getElementById('1608.01661v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 August, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2016. </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/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?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/1607.01177">arXiv:1607.01177</a> <span> [<a href="https://arxiv.org/pdf/1607.01177">pdf</a>, <a href="https://arxiv.org/format/1607.01177">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.117.151801">10.1103/PhysRevLett.117.151801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bay%2C+D">Daya Bay</a>, <a href="/search/hep-ex?searchtype=author&query=Collaborations%2C+M">MINOS Collaborations</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Anghel%2C+I">I. Anghel</a>, <a href="/search/hep-ex?searchtype=author&query=Aurisano%2C+A">A. Aurisano</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Barr%2C+G">G. Barr</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blake%2C+A">A. Blake</a>, <a href="/search/hep-ex?searchtype=author&query=Bock%2C+S+B+G+J">S. Blyth G. J. Bock</a>, <a href="/search/hep-ex?searchtype=author&query=Bogert%2C+D">D. Bogert</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+S+V">S. V. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Carroll%2C+T+J">T. J. Carroll</a>, <a href="/search/hep-ex?searchtype=author&query=Castromonte%2C+C+M">C. M. Castromonte</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a> , et al. (307 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="1607.01177v6-abstract-short" style="display: inline;"> Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.01177v6-abstract-full').style.display = 'inline'; document.getElementById('1607.01177v6-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.01177v6-abstract-full" style="display: none;"> Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe regions allowed by the LSND and MiniBooNE experiments in a minimally extended four-neutrino flavor framework. Stringent limits on $\sin^2 2胃_{渭e}$ are set over 6 orders of magnitude in the sterile mass-squared splitting $螖m^2_{41}$. The sterile-neutrino mixing phase space allowed by the LSND and MiniBooNE experiments is excluded for $螖m^2_{41} < 0.8$ eV$^2$ at 95% CL$_s$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.01177v6-abstract-full').style.display = 'none'; document.getElementById('1607.01177v6-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 5 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">8 pages, 4 figures, published in Physical Review Letters. Data release found at http://www-numi.fnal.gov/PublicInfo/forscientists.html and at https://wiki.bnl.gov/dayabay/index.php?title=Daya_Bay%27s_Sterile_Neutrino_Results_in_2016</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-16-234-ND </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 117, 151801 (2016) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1607.01174">arXiv:1607.01174</a> <span> [<a href="https://arxiv.org/pdf/1607.01174">pdf</a>, <a href="https://arxiv.org/format/1607.01174">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.117.151802">10.1103/PhysRevLett.117.151802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved Search for a Light Sterile Neutrino with the Full Configuration of the Daya Bay Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Daya+Bay+collaboration"> The Daya Bay collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?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="1607.01174v3-abstract-short" style="display: inline;"> This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with the full configuration of the Daya Bay Reactor Neutrino Experiment. With an additional 404 days of data collected in eight antineutrino detectors, this search benefits from 3.6 times the statistics available to the previous publication, as well as from improvements in en… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.01174v3-abstract-full').style.display = 'inline'; document.getElementById('1607.01174v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.01174v3-abstract-full" style="display: none;"> This Letter reports an improved search for light sterile neutrino mixing in the electron antineutrino disappearance channel with the full configuration of the Daya Bay Reactor Neutrino Experiment. With an additional 404 days of data collected in eight antineutrino detectors, this search benefits from 3.6 times the statistics available to the previous publication, as well as from improvements in energy calibration and background reduction. A relative comparison of the rate and energy spectrum of reactor antineutrinos in the three experimental halls yields no evidence of sterile neutrino mixing in the $2\times10^{-4} \lesssim |螖m^{2}_{41}| \lesssim 0.3$ eV$^{2}$ mass range. The resulting limits on $\sin^{2}2胃_{14}$ are improved by approximately a factor of 2 over previous results and constitute the most stringent constraints to date in the $|螖m^{2}_{41}| \lesssim 0.2$ eV$^{2}$ region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.01174v3-abstract-full').style.display = 'none'; document.getElementById('1607.01174v3-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 October, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 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, 3 figures, 1 table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 117, 151802 (2016) </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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+-">J. -H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Z+K">Z. K. Cheng</a>, <a href="/search/hep-ex?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/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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?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/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Bai%2C+J+Z">J. Z. Bai</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Beavis%2C+D">D. Beavis</a>, <a href="/search/hep-ex?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Brown%2C+R+L">R. L. Brown</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+D">D. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+W+T">W. T. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+Y">H. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+M+J">M. J. Chen</a>, <a href="/search/hep-ex?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/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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cen%2C+W+R">W. R. Cen</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J+H">J. H. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?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/1407.7259">arXiv:1407.7259</a> <span> [<a href="https://arxiv.org/pdf/1407.7259">pdf</a>, <a href="https://arxiv.org/format/1407.7259">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.113.141802">10.1103/PhysRevLett.113.141802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for a Light Sterile Neutrino at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?searchtype=author&query=Chu%2C+M+C">M. C. Chu</a>, <a href="/search/hep-ex?searchtype=author&query=Cummings%2C+J+P">J. P. Cummings</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="1407.7259v2-abstract-short" style="display: inline;"> A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of multiple baselines from six 2.9~GW$_{\rm th}$ nuclear reactors to six antineutrino detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1579~m) underground experimental halls makes it possib… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.7259v2-abstract-full').style.display = 'inline'; document.getElementById('1407.7259v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1407.7259v2-abstract-full" style="display: none;"> A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of multiple baselines from six 2.9~GW$_{\rm th}$ nuclear reactors to six antineutrino detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1579~m) underground experimental halls makes it possible to test for oscillations to a fourth (sterile) neutrino in the $10^{\rm -3}~{\rm eV}^{2} < |螖m_{41}^{2}| < 0.3~{\rm eV}^{2}$ range. The relative spectral distortion due to electron antineutrino disappearance was found to be consistent with that of the three-flavor oscillation model. The derived limits on $\sin^22胃_{14}$ cover the $10^{-3}~{\rm eV}^{2} \lesssim |螖m^{2}_{41}| \lesssim 0.1~{\rm eV}^{2}$ region, which was largely unexplored. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1407.7259v2-abstract-full').style.display = 'none'; document.getElementById('1407.7259v2-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 October, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 July, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">7 pages, 4 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 113, 141802 (2014) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1406.6468">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/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+L+C">L. C. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Q+Y">Q. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X">X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cherwinka%2C+J+J">J. J. Cherwinka</a>, <a href="/search/hep-ex?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/1310.6732">arXiv:1310.6732</a> <span> [<a href="https://arxiv.org/pdf/1310.6732">pdf</a>, <a href="https://arxiv.org/format/1310.6732">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.112.061801">10.1103/PhysRevLett.112.061801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Spectral measurement of electron antineutrino oscillation amplitude and frequency at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Daya+Bay+Collaboration"> Daya Bay Collaboration</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+F+P">F. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/hep-ex?searchtype=author&query=Band%2C+H+R">H. R. Band</a>, <a href="/search/hep-ex?searchtype=author&query=Beriguete%2C+W">W. Beriguete</a>, <a href="/search/hep-ex?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/hep-ex?searchtype=author&query=Blyth%2C+S">S. Blyth</a>, <a href="/search/hep-ex?searchtype=author&query=Brown%2C+R+L">R. L. Brown</a>, <a href="/search/hep-ex?searchtype=author&query=Butorov%2C+I">I. Butorov</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+G+F">G. F. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Cao%2C+J">J. Cao</a>, <a href="/search/hep-ex?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/hep-ex?searchtype=author&query=Chan%2C+Y+L">Y. L. Chan</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+J+F">J. F. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chang%2C+Y">Y. Chang</a>, <a href="/search/hep-ex?searchtype=author&query=Chasman%2C+C">C. Chasman</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+S">H. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+H+Y">H. Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+J">S. J. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+S+M">S. M. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X+C">X. C. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+X+H">X. H. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y+X">Y. X. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+P">Y. P. Cheng</a> , et al. (214 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="1310.6732v2-abstract-short" style="display: inline;"> A measurement of the energy dependence of antineutrino disappearance at the Daya Bay Reactor Neutrino Experiment is reported. Electron antineutrinos ($\overline谓_{e}$) from six $2.9$ GW$_{\rm th}$ reactors were detected with six detectors deployed in two near (effective baselines 512 m and 561 m) and one far (1579 m) underground experimental halls. Using 217 days of data, 41589 (203809 and 92912)… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6732v2-abstract-full').style.display = 'inline'; document.getElementById('1310.6732v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1310.6732v2-abstract-full" style="display: none;"> A measurement of the energy dependence of antineutrino disappearance at the Daya Bay Reactor Neutrino Experiment is reported. Electron antineutrinos ($\overline谓_{e}$) from six $2.9$ GW$_{\rm th}$ reactors were detected with six detectors deployed in two near (effective baselines 512 m and 561 m) and one far (1579 m) underground experimental halls. Using 217 days of data, 41589 (203809 and 92912) antineutrino candidates were detected in the far hall (near halls). An improved measurement of the oscillation amplitude $\sin^{2}2胃_{13} = 0.090^{+0.008}_{-0.009} $ and the first direct measurement of the $\overline谓_{e}$ mass-squared difference $|螖m^{2}_{ee}|= (2.59_{-0.20}^{+0.19}) \times 10^{-3}\ {\rm eV}^2 $ is obtained using the observed $\overline谓_{e}$ rates and energy spectra in a three-neutrino framework. This value of $|螖m^{2}_{ee}|$ is consistent with $|螖m^{2}_{渭渭}|$ measured by muon neutrino disappearance, supporting the three-flavor oscillation model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1310.6732v2-abstract-full').style.display = 'none'; document.getElementById('1310.6732v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 October, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2013. </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">As accepted for publication by Phys. Rev. Lett. including ancillary table</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 112, 061801 (2014) </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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