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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/2501.00746">arXiv:2501.00746</a> <span> [<a href="https://arxiv.org/pdf/2501.00746">pdf</a>, <a href="https://arxiv.org/format/2501.00746">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Comprehensive Measurement of the Reactor Antineutrino Spectrum and Flux 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=Bai%2C+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+-">Y. -C. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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+X+Y">X. Y. Ding</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="2501.00746v1-abstract-short" style="display: inline;"> This Letter reports the precise measurement of reactor antineutrino spectrum and flux based on the full data set of 4.7 million inverse-beta-decay (IBD) candidates collected at Daya Bay near detectors. Expressed in terms of the IBD yield per fission, the antineutrino spectra from all reactor fissile isotopes and the specific $\mathrm{^{235}U}$ and $\mathrm{^{239}Pu}$ isotopes are measured with 1.3… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.00746v1-abstract-full').style.display = 'inline'; document.getElementById('2501.00746v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2501.00746v1-abstract-full" style="display: none;"> This Letter reports the precise measurement of reactor antineutrino spectrum and flux based on the full data set of 4.7 million inverse-beta-decay (IBD) candidates collected at Daya Bay near detectors. Expressed in terms of the IBD yield per fission, the antineutrino spectra from all reactor fissile isotopes and the specific $\mathrm{^{235}U}$ and $\mathrm{^{239}Pu}$ isotopes are measured with 1.3$\%$, 3$\%$ and 8$\%$ uncertainties respectively near the 3 MeV spectrum peak in reconstructed energy, reaching the best precision in the world. The total antineutrino flux and isotopic $\mathrm{^{235}U}$ and $\mathrm{^{239}Pu}$ fluxes are precisely measured to be $5.84\pm0.07$, $6.16\pm0.12$ and $4.16\pm0.21$ in units of $10^{-43} \mathrm{cm^2/fission}$. These measurements are compared with the Huber-Mueller (HM) model, the reevaluated conversion model based on the Kurchatov Institute (KI) measurement and the latest Summation Model (SM2023). The Daya Bay flux shows good consistency with KI and SM2023 models, but disagrees with HM model. The Daya Bay spectrum, however, disagrees with all model predictions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2501.00746v1-abstract-full').style.display = 'none'; document.getElementById('2501.00746v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2025. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.01007">arXiv:2406.01007</a> <span> [<a href="https://arxiv.org/pdf/2406.01007">pdf</a>, <a href="https://arxiv.org/format/2406.01007">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.133.151801">10.1103/PhysRevLett.133.151801 <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 Amplitude and Frequency 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=Bai%2C+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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+J">J. Cheng</a>, <a href="/search/hep-ex?searchtype=author&query=Cheng%2C+Y+-">Y. -C. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</a>, <a href="/search/hep-ex?searchtype=author&query=Deng%2C+F+S">F. S. Deng</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="2406.01007v2-abstract-short" style="display: inline;"> This Letter reports the first measurement of the oscillation amplitude and frequency of reactor antineutrinos at Daya Bay via neutron capture on hydrogen using 1958 days of data. With over 3.6 million signal candidates, an optimized candidate selection, improved treatment of backgrounds and efficiencies, refined energy calibration, and an energy response model for the capture-on-hydrogen sensitive… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01007v2-abstract-full').style.display = 'inline'; document.getElementById('2406.01007v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.01007v2-abstract-full" style="display: none;"> This Letter reports the first measurement of the oscillation amplitude and frequency of reactor antineutrinos at Daya Bay via neutron capture on hydrogen using 1958 days of data. With over 3.6 million signal candidates, an optimized candidate selection, improved treatment of backgrounds and efficiencies, refined energy calibration, and an energy response model for the capture-on-hydrogen sensitive region, the relative $\overline谓_{e}$ rates and energy spectra variation among the near and far detectors gives $\mathrm{sin}^22胃_{13} = 0.0759_{-0.0049}^{+0.0050}$ and $螖m^2_{32} = (2.72^{+0.14}_{-0.15})\times10^{-3}$ eV$^2$ assuming the normal neutrino mass ordering, and $螖m^2_{32} = (-2.83^{+0.15}_{-0.14})\times10^{-3}$ eV$^2$ for the inverted neutrino mass ordering. This estimate of $\sin^2 2胃_{13}$ is consistent with and essentially independent from the one obtained using the capture-on-gadolinium sample at Daya Bay. The combination of these two results yields $\mathrm{sin}^22胃_{13}= 0.0833\pm0.0022$, which represents an 8% relative improvement in precision regarding the Daya Bay full 3158-day capture-on-gadolinium result. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01007v2-abstract-full').style.display = 'none'; document.getElementById('2406.01007v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 133, 151801 (2024) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.01687">arXiv:2404.01687</a> <span> [<a href="https://arxiv.org/pdf/2404.01687">pdf</a>, <a href="https://arxiv.org/format/2404.01687">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Search for a sub-eV sterile neutrino using Daya Bay's full dataset </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+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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+Y+C">Y. C. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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+X+Y">X. Y. Ding</a>, <a href="/search/hep-ex?searchtype=author&query=Ding%2C+Y+Y">Y. Y. Ding</a> , et al. (176 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="2404.01687v3-abstract-short" style="display: inline;"> This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains $5.55 \times 10^{6}$ reactor \anue candidates identified as inverse beta-decay interactions followed by neutron-capture on gadolinium. The analysis… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.01687v3-abstract-full').style.display = 'inline'; document.getElementById('2404.01687v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.01687v3-abstract-full" style="display: none;"> This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains $5.55 \times 10^{6}$ reactor \anue candidates identified as inverse beta-decay interactions followed by neutron-capture on gadolinium. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties. No significant oscillation due to mixing of a sub-eV sterile neutrino with active neutrinos was found. Exclusion limits are set by both Feldman-Cousins and CLs methods. Light sterile neutrino mixing with $\sin^2 2胃_{14} \gtrsim 0.01$ can be excluded at 95\% confidence level in the region of $0.01$ eV$^2 \lesssim |螖m^{2}_{41}| \lesssim 0.1 $ eV$^2$. This result represents the world-leading constraints in the region of $2 \times 10^{-4}$ eV$^2 \lesssim |螖m^{2}_{41}| \lesssim 0.2 $ eV$^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.01687v3-abstract-full').style.display = 'none'; document.getElementById('2404.01687v3-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.05383">arXiv:2402.05383</a> <span> [<a href="https://arxiv.org/pdf/2402.05383">pdf</a>, <a href="https://arxiv.org/format/2402.05383">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> First measurement of the yield of $^8$He isotopes produced in liquid scintillator by cosmic-ray muons 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=Bai%2C+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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+Y+C">Y. C. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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+X+Y">X. Y. Ding</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="2402.05383v1-abstract-short" style="display: inline;"> Daya Bay presents the first measurement of cosmogenic $^8$He isotope production in liquid scintillator, using an innovative method for identifying cascade decays of $^8$He and its child isotope, $^8$Li. We also measure the production yield of $^9$Li isotopes using well-established methodology. The results, in units of 10$^{-8}渭^{-1}$g$^{-1}$cm$^{2}$, are 0.307$\pm$0.042, 0.341$\pm$0.040, and 0.546… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.05383v1-abstract-full').style.display = 'inline'; document.getElementById('2402.05383v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.05383v1-abstract-full" style="display: none;"> Daya Bay presents the first measurement of cosmogenic $^8$He isotope production in liquid scintillator, using an innovative method for identifying cascade decays of $^8$He and its child isotope, $^8$Li. We also measure the production yield of $^9$Li isotopes using well-established methodology. The results, in units of 10$^{-8}渭^{-1}$g$^{-1}$cm$^{2}$, are 0.307$\pm$0.042, 0.341$\pm$0.040, and 0.546$\pm$0.076 for $^8$He, and 6.73$\pm$0.73, 6.75$\pm$0.70, and 13.74$\pm$0.82 for $^9$Li at average muon energies of 63.9~GeV, 64.7~GeV, and 143.0~GeV, respectively. The measured production rate of $^8$He isotopes is more than an order of magnitude lower than any other measurement of cosmogenic isotope production. It replaces the results of previous attempts to determine the ratio of $^8$He to $^9$Li production that yielded a wide range of limits from 0 to 30\%. The results provide future liquid-scintillator-based experiments with improved ability to predict cosmogenic backgrounds. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.05383v1-abstract-full').style.display = 'none'; document.getElementById('2402.05383v1-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.02901">arXiv:2401.02901</a> <span> [<a href="https://arxiv.org/pdf/2401.02901">pdf</a>, <a href="https://arxiv.org/format/2401.02901">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Charged-current non-standard neutrino interactions 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=Bai%2C+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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+Y+C">Y. C. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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+X+Y">X. Y. Ding</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="2401.02901v6-abstract-short" style="display: inline;"> The full data set of the Daya Bay reactor neutrino experiment is used to probe the effect of the charged current non-standard interactions (CC-NSI) on neutrino oscillation experiments. Two different approaches are applied and constraints on the corresponding CC-NSI parameters are obtained with the neutrino flux taken from the Huber-Mueller model with a $5\%$ uncertainty. For the quantum mechanics-… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.02901v6-abstract-full').style.display = 'inline'; document.getElementById('2401.02901v6-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.02901v6-abstract-full" style="display: none;"> The full data set of the Daya Bay reactor neutrino experiment is used to probe the effect of the charged current non-standard interactions (CC-NSI) on neutrino oscillation experiments. Two different approaches are applied and constraints on the corresponding CC-NSI parameters are obtained with the neutrino flux taken from the Huber-Mueller model with a $5\%$ uncertainty. For the quantum mechanics-based approach (QM-NSI), the constraints on the CC-NSI parameters $蔚_{e伪}$ and $蔚_{e伪}^{s}$ are extracted with and without the assumption that the effects of the new physics are the same in the production and detection processes, respectively. The approach based on the weak effective field theory (WEFT-NSI) deals with four types of CC-NSI represented by the parameters $[\varepsilon_{X}]_{e伪}$. For both approaches, the results for the CC-NSI parameters are shown for cases with various fixed values of the CC-NSI and the Dirac CP-violating phases, and when they are allowed to vary freely. We find that constraints on the QM-NSI parameters $蔚_{e伪}$ and $蔚_{e伪}^{s}$ from the Daya Bay experiment alone can reach the order $\mathcal{O}(0.01)$ for the former and $\mathcal{O}(0.1)$ for the latter, while for WEFT-NSI parameters $[\varepsilon_{X}]_{e伪}$, we obtain $\mathcal{O}(0.1)$ for both cases. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.02901v6-abstract-full').style.display = 'none'; document.getElementById('2401.02901v6-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">25 pages, 16 figures, 6 tables; 36 pages, format changed, references added</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.14988">arXiv:2211.14988</a> <span> [<a href="https://arxiv.org/pdf/2211.14988">pdf</a>, <a href="https://arxiv.org/format/2211.14988">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Precision measurement of reactor antineutrino oscillation at kilometer-scale baselines by 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=Bai%2C+W+D">W. D. 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=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+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=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+H+Y">H. 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">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=Chen%2C+Z+Y">Z. 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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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>, <a href="/search/hep-ex?searchtype=author&query=Ding%2C+X+Y">X. Y. Ding</a> , et al. (176 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="2211.14988v1-abstract-short" style="display: inline;"> We present a new determination of the smallest neutrino mixing angle $胃_{13}$ and the mass-squared difference $螖{\rm m}^{2}_{32}$ using a final sample of $5.55 \times 10^{6}$ inverse beta-decay (IBD) candidates with the final-state neutron captured on gadolinium. This sample was selected from the complete data set obtained by the Daya Bay reactor neutrino experiment in 3158 days of operation. Comp… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.14988v1-abstract-full').style.display = 'inline'; document.getElementById('2211.14988v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.14988v1-abstract-full" style="display: none;"> We present a new determination of the smallest neutrino mixing angle $胃_{13}$ and the mass-squared difference $螖{\rm m}^{2}_{32}$ using a final sample of $5.55 \times 10^{6}$ inverse beta-decay (IBD) candidates with the final-state neutron captured on gadolinium. This sample was selected from the complete data set obtained by the Daya Bay reactor neutrino experiment in 3158 days of operation. Compared to the previous Daya Bay results, selection of IBD candidates has been optimized, energy calibration refined, and treatment of backgrounds further improved. The resulting oscillation parameters are ${\rm sin}^{2}2胃_{13} = 0.0851 \pm 0.0024$, $螖{\rm m}^{2}_{32} = (2.466 \pm 0.060) \times 10^{-3}{\rm eV}^{2}$ for the normal mass ordering or $螖{\rm m}^{2}_{32} = -(2.571 \pm 0.060) \times 10^{-3} {\rm eV}^{2}$ for the inverted mass ordering. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.14988v1-abstract-full').style.display = 'none'; document.getElementById('2211.14988v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 3 figures, 1 table, 10 supplementary files</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.06686">arXiv:2203.06686</a> <span> [<a href="https://arxiv.org/pdf/2203.06686">pdf</a>, <a href="https://arxiv.org/format/2203.06686">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.129.041801">10.1103/PhysRevLett.129.041801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First measurement of high-energy reactor antineutrinos 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+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=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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?searchtype=author&query=Dohnal%2C+T">T. Dohnal</a>, <a href="/search/hep-ex?searchtype=author&query=Dove%2C+J">J. Dove</a> , et al. (162 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.06686v2-abstract-short" style="display: inline;"> This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12~MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10~MeV is rej… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.06686v2-abstract-full').style.display = 'inline'; document.getElementById('2203.06686v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.06686v2-abstract-full" style="display: none;"> This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8-12~MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10~MeV is rejected with a significance of 6.2 standard deviations. A 29\% antineutrino flux deficit in the prompt energy region of 8-11~MeV is observed compared to a recent model prediction. We provide the unfolded antineutrino spectrum above 7 MeV as a data-based reference for other experiments. This result provides the first direct observation of the production of antineutrinos from several high-$Q_尾$ isotopes in commercial reactors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.06686v2-abstract-full').style.display = 'none'; document.getElementById('2203.06686v2-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 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 4 figures, accepted by Physical Review Letters</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 129, 041801 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.12251">arXiv:2106.12251</a> <span> [<a href="https://arxiv.org/pdf/2106.12251">pdf</a>, <a href="https://arxiv.org/format/2106.12251">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.128.081801">10.1103/PhysRevLett.128.081801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Joint Determination of Reactor Antineutrino Spectra from $^{235}$U and $^{239}$Pu Fission by Daya Bay and PROSPECT </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=PROSPECT+Collaboration"> PROSPECT 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=Andriamirado%2C+M">M. Andriamirado</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=Bass%2C+C+D">C. D. Bass</a>, <a href="/search/hep-ex?searchtype=author&query=Bergeron%2C+D+E">D. E. Bergeron</a>, <a href="/search/hep-ex?searchtype=author&query=Berish%2C+D">D. Berish</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=Bowden%2C+N+S">N. S. Bowden</a>, <a href="/search/hep-ex?searchtype=author&query=Bryan%2C+C+D">C. D. Bryan</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=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> , et al. (217 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2106.12251v2-abstract-short" style="display: inline;"> A joint determination of the reactor antineutrino spectra resulting from the fission of $^{235}$U and $^{239}$Pu has been carried out by the Daya Bay and PROSPECT collaborations. This Letter reports the level of consistency of $^{235}$U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.12251v2-abstract-full').style.display = 'inline'; document.getElementById('2106.12251v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.12251v2-abstract-full" style="display: none;"> A joint determination of the reactor antineutrino spectra resulting from the fission of $^{235}$U and $^{239}$Pu has been carried out by the Daya Bay and PROSPECT collaborations. This Letter reports the level of consistency of $^{235}$U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant $^{235}$U and $^{239}$Pu isotopes and improves the uncertainty of the $^{235}$U spectral shape to about 3\%. The ${}^{235}$U and $^{239}$Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the $^{235}$U and $^{239}$Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.12251v2-abstract-full').style.display = 'none'; document.getElementById('2106.12251v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 5 figures, Supplementary Material Included</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Letters 128, 081801 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.04614">arXiv:2102.04614</a> <span> [<a href="https://arxiv.org/pdf/2102.04614">pdf</a>, <a href="https://arxiv.org/format/2102.04614">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/abfc38">10.1088/1674-1137/abfc38 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Antineutrino Energy Spectrum Unfolding Based on the Daya Bay Measurement and Its Applications </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+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=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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?searchtype=author&query=Dohnal%2C+T">T. Dohnal</a>, <a href="/search/hep-ex?searchtype=author&query=Dove%2C+J">J. Dove</a> , et al. (162 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="2102.04614v3-abstract-short" style="display: inline;"> The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in combination with the fission rates of fissile isotopes in the reactor, is used to extract the positron energy spectra resulting from the fission of specif… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.04614v3-abstract-full').style.display = 'inline'; document.getElementById('2102.04614v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.04614v3-abstract-full" style="display: none;"> The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in combination with the fission rates of fissile isotopes in the reactor, is used to extract the positron energy spectra resulting from the fission of specific isotopes. This information can be used to produce a precise, data-based prediction of the antineutrino energy spectrum in other reactor antineutrino experiments with different fission fractions than Daya Bay. The positron energy spectra are unfolded to obtain the antineutrino energy spectra by removing the contribution from detector response with the Wiener-SVD unfolding method. Consistent results are obtained with other unfolding methods. A technique to construct a data-based prediction of the reactor antineutrino energy spectrum is proposed and investigated. Given the reactor fission fractions, the technique can predict the energy spectrum to a 2% precision. In addition, we illustrate how to perform a rigorous comparison between the unfolded antineutrino spectrum and a theoretical model prediction that avoids the input model bias of the unfolding method. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.04614v3-abstract-full').style.display = 'none'; document.getElementById('2102.04614v3-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">22 pages, 10 figures, 6 supplemental materials</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chinese Physics C, Volume 45, Number 7, 2021 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.00314">arXiv:2007.00314</a> <span> [<a href="https://arxiv.org/pdf/2007.00314">pdf</a>, <a href="https://arxiv.org/format/2007.00314">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=Bay%2C+D">Daya Bay</a>, <a href="/search/hep-ex?searchtype=author&query=collaborations%2C+J">JUNO collaborations</a>, <a href="/search/hep-ex?searchtype=author&query=%3A"> :</a>, <a href="/search/hep-ex?searchtype=author&query=Abusleme%2C+A">A. Abusleme</a>, <a href="/search/hep-ex?searchtype=author&query=Adam%2C+T">T. Adam</a>, <a href="/search/hep-ex?searchtype=author&query=Ahmad%2C+S">S. Ahmad</a>, <a href="/search/hep-ex?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/hep-ex?searchtype=author&query=Akram%2C+M">M. Akram</a>, <a href="/search/hep-ex?searchtype=author&query=Ali%2C+N">N. Ali</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=An%2C+G+P">G. P. An</a>, <a href="/search/hep-ex?searchtype=author&query=An%2C+Q">Q. An</a>, <a href="/search/hep-ex?searchtype=author&query=Andronico%2C+G">G. Andronico</a>, <a href="/search/hep-ex?searchtype=author&query=Anfimov%2C+N">N. Anfimov</a>, <a href="/search/hep-ex?searchtype=author&query=Antonelli%2C+V">V. Antonelli</a>, <a href="/search/hep-ex?searchtype=author&query=Antoshkina%2C+T">T. Antoshkina</a>, <a href="/search/hep-ex?searchtype=author&query=Asavapibhop%2C+B">B. Asavapibhop</a>, <a href="/search/hep-ex?searchtype=author&query=de+Andr%C3%A9%2C+J+P+A+M">J. P. A. M. de Andr茅</a>, <a href="/search/hep-ex?searchtype=author&query=Babic%2C+A">A. Babic</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=Baldini%2C+W">W. Baldini</a>, <a href="/search/hep-ex?searchtype=author&query=Baldoncini%2C+M">M. Baldoncini</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=Barresi%2C+A">A. Barresi</a>, <a href="/search/hep-ex?searchtype=author&query=Baussan%2C+E">E. Baussan</a> , et al. (642 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.00314v1-abstract-short" style="display: inline;"> To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.00314v1-abstract-full').style.display = 'inline'; document.getElementById('2007.00314v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.00314v1-abstract-full" style="display: none;"> To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. The optical properties of the new LS in various compositions were studied by replacing the gadolinium-loaded LS in one antineutrino detector. The concentrations of the fluor, PPO, and the wavelength shifter, bis-MSB, were increased in 12 steps from 0.5 g/L and <0.01 mg/L to 4 g/L and 13 mg/L, respectively. The numbers of total detected photoelectrons suggest that, with the optically purified solvent, the bis-MSB concentration does not need to be more than 4 mg/L. To bridge the one order of magnitude in the detector size difference between Daya Bay and JUNO, the Daya Bay data were used to tune the parameters of a newly developed optical model. Then, the model and tuned parameters were used in the JUNO simulation. This enabled to determine the optimal composition for the JUNO LS: purified solvent LAB with 2.5 g/L PPO, and 1 to 4 mg/L bis-MSB. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.00314v1-abstract-full').style.display = 'none'; document.getElementById('2007.00314v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.15386">arXiv:2006.15386</a> <span> [<a href="https://arxiv.org/pdf/2006.15386">pdf</a>, <a href="https://arxiv.org/format/2006.15386">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1674-1137/abe84b">10.1088/1674-1137/abe84b <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search For Electron-Antineutrinos Associated With Gravitational-Wave Events GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817 at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/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+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=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=Cummings%2C+J+P">J. P. Cummings</a>, <a href="/search/hep-ex?searchtype=author&query=Dalager%2C+O">O. Dalager</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>, <a href="/search/hep-ex?searchtype=author&query=Diwan%2C+M+V">M. V. Diwan</a>, <a href="/search/hep-ex?searchtype=author&query=Dohnal%2C+T">T. Dohnal</a>, <a href="/search/hep-ex?searchtype=author&query=Dove%2C+J">J. Dove</a>, <a href="/search/hep-ex?searchtype=author&query=Dvorak%2C+M">M. Dvorak</a> , et al. (161 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2006.15386v4-abstract-short" style="display: inline;"> Providing a possible connection between neutrino emission and gravitational-wave (GW) bursts is important to our understanding of the physical processes that occur when black holes or neutron stars merge. In the Daya Bay experiment, using data collected from December 2011 to August 2017, a search has been performed for electron-antineutrino signals coinciding with detected GW events, including GW1… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15386v4-abstract-full').style.display = 'inline'; document.getElementById('2006.15386v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.15386v4-abstract-full" style="display: none;"> Providing a possible connection between neutrino emission and gravitational-wave (GW) bursts is important to our understanding of the physical processes that occur when black holes or neutron stars merge. In the Daya Bay experiment, using data collected from December 2011 to August 2017, a search has been performed for electron-antineutrino signals coinciding with detected GW events, including GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817. We used three time windows of $\mathrm{\pm 10~s}$, $\mathrm{\pm 500~s}$, and $\mathrm{\pm 1000~s}$ relative to the occurrence of the GW events, and a neutrino energy range of 1.8 to 100 MeV to search for correlated neutrino candidates. The detected electron-antineutrino candidates are consistent with the expected background rates for all the three time windows. Assuming monochromatic spectra, we found upper limits (90% confidence level) on electron-antineutrino fluence of $(1.13~-~2.44) \times 10^{11}~\rm{cm^{-2}}$ at 5 MeV to $8.0 \times 10^{7}~\rm{cm^{-2}}$ at 100 MeV for the three time windows. Under the assumption of a Fermi-Dirac spectrum, the upper limits were found to be $(5.4~-~7.0)\times 10^{9}~\rm{cm^{-2}}$ for the three time windows. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15386v4-abstract-full').style.display = 'none'; document.getElementById('2006.15386v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 June, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages, 12 figures, 9 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.00301">arXiv:2002.00301</a> <span> [<a href="https://arxiv.org/pdf/2002.00301">pdf</a>, <a href="https://arxiv.org/format/2002.00301">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.125.071801">10.1103/PhysRevLett.125.071801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, 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=Blyth%2C+S">S. Blyth</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=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+R">R. 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> , et al. (243 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="2002.00301v1-abstract-short" style="display: inline;"> Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constrain… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.00301v1-abstract-full').style.display = 'inline'; document.getElementById('2002.00301v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.00301v1-abstract-full" style="display: none;"> Searches for electron antineutrino, muon neutrino, and muon antineutrino disappearance driven by sterile neutrino mixing have been carried out by the Daya Bay and MINOS+ collaborations. This Letter presents the combined results of these searches, along with exclusion results from the Bugey-3 reactor experiment, framed in a minimally extended four-neutrino scenario. Significantly improved constraints on the $胃_{渭e}$ mixing angle are derived that constitute the most stringent limits to date over five orders of magnitude in the sterile mass-squared splitting $螖m^2_{41}$, excluding the 90% C.L. sterile-neutrino parameter space allowed by the LSND and MiniBooNE observations at 90% CL$_s$ for $螖m^2_{41}<5\,$eV$^2$.Furthermore, the LSND and MiniBooNE 99% C.L. allowed regions are excluded at 99% CL$_s$ for $螖m^2_{41}$ $<$ 1.2 eV$^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.00301v1-abstract-full').style.display = 'none'; document.getElementById('2002.00301v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 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. 125, 071801 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.03840">arXiv:1905.03840</a> <span> [<a href="https://arxiv.org/pdf/1905.03840">pdf</a>, <a href="https://arxiv.org/ps/1905.03840">ps</a>, <a href="https://arxiv.org/format/1905.03840">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Response to Comment on Daya Bay's definition and use of Delta(m^2_ee) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ex?searchtype=author&query=The+Day+Bay+Collaboration"> The Day 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=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=Dash%2C+N">N. Dash</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. (171 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1905.03840v1-abstract-short" style="display: inline;"> The Daya Bay Collaboration responds to comments posted by S. Parke and R. Zukanovich Funchal regarding our use of Delta(m^2_ee). </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.03840v1-abstract-full" style="display: none;"> The Daya Bay Collaboration responds to comments posted by S. Parke and R. Zukanovich Funchal regarding our use of Delta(m^2_ee). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.03840v1-abstract-full').style.display = 'none'; document.getElementById('1905.03840v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2019. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1904.07812">arXiv:1904.07812</a> <span> [<a href="https://arxiv.org/pdf/1904.07812">pdf</a>, <a href="https://arxiv.org/format/1904.07812">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.123.111801">10.1103/PhysRevLett.123.111801 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Extraction of the $^{235}$U and $^{239}$Pu Antineutrino Spectra at Daya Bay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/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=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=Dash%2C+N">N. Dash</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. (171 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1904.07812v3-abstract-short" style="display: inline;"> This Letter reports the first extraction of individual antineutrino spectra from $^{235}$U and $^{239}$Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses $3.5\times 10^6$ inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, $^{235}$U… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.07812v3-abstract-full').style.display = 'inline'; document.getElementById('1904.07812v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1904.07812v3-abstract-full" style="display: none;"> This Letter reports the first extraction of individual antineutrino spectra from $^{235}$U and $^{239}$Pu fission and an improved measurement of the prompt energy spectrum of reactor antineutrinos at Daya Bay. The analysis uses $3.5\times 10^6$ inverse beta-decay candidates in four near antineutrino detectors in 1958 days. The individual antineutrino spectra of the two dominant isotopes, $^{235}$U and $^{239}$Pu, are extracted using the evolution of the prompt spectrum as a function of the isotope fission fractions. In the energy window of 4--6~MeV, a 7\% (9\%) excess of events is observed for the $^{235}$U ($^{239}$Pu) spectrum compared with the normalized Huber-Mueller model prediction. The significance of discrepancy is $4.0蟽$ for $^{235}$U spectral shape compared with the Huber-Mueller model prediction. The shape of the measured inverse beta-decay prompt energy spectrum disagrees with the prediction of the Huber-Mueller model at $5.3蟽$. In the energy range of 4--6~MeV, a maximal local discrepancy of $6.3蟽$ is observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.07812v3-abstract-full').style.display = 'none'; document.getElementById('1904.07812v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 April, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Updated title</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 123, 111801 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1809.04660">arXiv:1809.04660</a> <span> [<a href="https://arxiv.org/pdf/1809.04660">pdf</a>, <a href="https://arxiv.org/format/1809.04660">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.98.092013">10.1103/PhysRevD.98.092013 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for a time-varying electron antineutrino signal 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=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=Dash%2C+N">N. Dash</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. (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="1809.04660v3-abstract-short" style="display: inline;"> A search for a time-varying $\bar谓_{e}$ signal was performed with 621 days of data acquired by the Daya Bay Reactor Neutrino Experiment over 704 calendar days. The time spectrum of the measured $\overline谓_e$ flux normalized to its prediction was analyzed with a Lomb-Scargle periodogram, which yielded no significant signal for periods ranging from 2 hours to nearly 2 years. The normalized time spe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.04660v3-abstract-full').style.display = 'inline'; document.getElementById('1809.04660v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1809.04660v3-abstract-full" style="display: none;"> A search for a time-varying $\bar谓_{e}$ signal was performed with 621 days of data acquired by the Daya Bay Reactor Neutrino Experiment over 704 calendar days. The time spectrum of the measured $\overline谓_e$ flux normalized to its prediction was analyzed with a Lomb-Scargle periodogram, which yielded no significant signal for periods ranging from 2 hours to nearly 2 years. The normalized time spectrum was also fit for a sidereal modulation under the Standard Model extension (SME) framework to search for Lorentz and CPT violation (LV-CPTV). Limits were obtained for all six flavor pairs $\bar{e}\bar渭$, $\bar{e}\bar蟿$, $\bar渭\bar蟿$, $\bar{e}\bar{e},\bar渭\bar渭$ and $\bar蟿\bar蟿$ by fitting them one at a time, constituting the first experimental constraints on the latter three. Daya Bay's high statistics and unique layout of multiple directions from three pairs of reactors to three experimental halls allowed the simultaneous constraint of individual SME LV-CPTV coefficients without assuming others contribute negligibly, a first for a neutrino experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.04660v3-abstract-full').style.display = 'none'; document.getElementById('1809.04660v3-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 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 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">10 pages, 5 figures, 2 tables. Supplemental Material is provided. v3: updated two figures to better match 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. D 98, 092013 (2018) </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/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/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> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1210.6327">arXiv:1210.6327</a> <span> [<a href="https://arxiv.org/pdf/1210.6327">pdf</a>, <a href="https://arxiv.org/ps/1210.6327">ps</a>, <a href="https://arxiv.org/format/1210.6327">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/10.1088/1674-1137/37/1/011001">10.1088/1674-1137/37/1/011001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved Measurement of Electron Antineutrino Disappearance 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=An%2C+Q">Q. 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=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=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+W+T">W. T. 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+X+S">X. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</a> , et al. (207 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1210.6327v2-abstract-short" style="display: inline;"> We report an improved measurement of the neutrino mixing angle $胃_{13}$ from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for $\sin^22胃_{13}$ with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GW$_{\rm th}$ were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.6327v2-abstract-full').style.display = 'inline'; document.getElementById('1210.6327v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1210.6327v2-abstract-full" style="display: none;"> We report an improved measurement of the neutrino mixing angle $胃_{13}$ from the Daya Bay Reactor Neutrino Experiment. We exclude a zero value for $\sin^22胃_{13}$ with a significance of 7.7 standard deviations. Electron antineutrinos from six reactors of 2.9 GW$_{\rm th}$ were detected in six antineutrino detectors deployed in two near (flux-weighted baselines of 470 m and 576 m) and one far (1648 m) underground experimental halls. Using 139 days of data, 28909 (205308) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to the expected number of antineutrinos assuming no oscillations at the far hall is $0.944\pm 0.007({\rm stat.}) \pm 0.003({\rm syst.})$. An analysis of the relative rates in six detectors finds $\sin^22胃_{13}=0.089\pm 0.010({\rm stat.})\pm0.005({\rm syst.})$ in a three-neutrino framework. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1210.6327v2-abstract-full').style.display = 'none'; document.getElementById('1210.6327v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 November, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 October, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">21 pages, 24 figures. Submitted to and accepted by Chinese Physics C. Two typos were corrected. Description improved</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Chin.Phys. C37 (2013) 011001 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1203.1669">arXiv:1203.1669</a> <span> [<a href="https://arxiv.org/pdf/1203.1669">pdf</a>, <a href="https://arxiv.org/ps/1203.1669">ps</a>, <a href="https://arxiv.org/format/1203.1669">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.108.171803">10.1103/PhysRevLett.108.171803 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of electron-antineutrino disappearance 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=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=Boddy%2C+K">K. Boddy</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=Cai%2C+B">B. Cai</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+W+T">W. T. 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+X+S">X. S. Chen</a> , et al. (246 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1203.1669v2-abstract-short" style="display: inline;"> The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $胃_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW$_{\rm th}$ reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GW_{\rm th}-day… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.1669v2-abstract-full').style.display = 'inline'; document.getElementById('1203.1669v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1203.1669v2-abstract-full" style="display: none;"> The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $胃_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW$_{\rm th}$ reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GW_{\rm th}-day livetime exposure in 55 days, 10416 (80376) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is $R=0.940\pm 0.011({\rm stat}) \pm 0.004({\rm syst})$. A rate-only analysis finds $\sin^22胃_{13}=0.092\pm 0.016({\rm stat})\pm0.005({\rm syst})$ in a three-neutrino framework. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1203.1669v2-abstract-full').style.display = 'none'; document.getElementById('1203.1669v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 April, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 March, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 figures. Version to appear in Phys. Rev. Lett</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 108, 171803 (2012) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1202.6181">arXiv:1202.6181</a> <span> [<a href="https://arxiv.org/pdf/1202.6181">pdf</a>, <a href="https://arxiv.org/ps/1202.6181">ps</a>, <a href="https://arxiv.org/format/1202.6181">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2012.05.030">10.1016/j.nima.2012.05.030 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A side-by-side comparison of Daya Bay antineutrino detectors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/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=An%2C+Q">Q. 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=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=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=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+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+X+S">X. S. Chen</a>, <a href="/search/hep-ex?searchtype=author&query=Chen%2C+Y">Y. Chen</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. (218 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1202.6181v1-abstract-short" style="display: inline;"> The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $胃_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22胃_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimenta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.6181v1-abstract-full').style.display = 'inline'; document.getElementById('1202.6181v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1202.6181v1-abstract-full" style="display: none;"> The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $胃_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22胃_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimental Hall 1, with steady data-taking beginning September 23, 2011. A comparison of the data collected over the subsequent three months indicates that the detectors are functionally identical, and that detector-related systematic uncertainties exceed requirements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1202.6181v1-abstract-full').style.display = 'none'; document.getElementById('1202.6181v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 February, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 36 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instr. Meth A 685, 78-97 (2012) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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