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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/2402.12480">arXiv:2402.12480</a> <span> [<a href="https://arxiv.org/pdf/2402.12480">pdf</a>, <a href="https://arxiv.org/format/2402.12480">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="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> A measurement of the sodium and iodine scintillation quenching factors across multiple NaI(Tl) detectors to identify systematics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ph?searchtype=author&query=Cintas%2C+D">D. Cintas</a>, <a href="/search/hep-ph?searchtype=author&query=Hedges%2C+S">S. Hedges</a>, <a href="/search/hep-ph?searchtype=author&query=Thompson%2C+W+G">W. G. Thompson</a>, <a href="/search/hep-ph?searchtype=author&query=An%2C+P">P. An</a>, <a href="/search/hep-ph?searchtype=author&query=Awe%2C+C">C. Awe</a>, <a href="/search/hep-ph?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/hep-ph?searchtype=author&query=de+Souza%2C+E+B">E. Barbosa de Souza</a>, <a href="/search/hep-ph?searchtype=author&query=Jo%2C+J+H">J. H. Jo</a>, <a href="/search/hep-ph?searchtype=author&query=Li%2C+L">L. Li</a>, <a href="/search/hep-ph?searchtype=author&query=Mart%C3%ADnez%2C+M">M. Mart铆nez</a>, <a href="/search/hep-ph?searchtype=author&query=Maruyama%2C+R+H">R. H. Maruyama</a>, <a href="/search/hep-ph?searchtype=author&query=Rich%2C+G+C">G. C. Rich</a>, <a href="/search/hep-ph?searchtype=author&query=Runge%2C+R">R. Runge</a>, <a href="/search/hep-ph?searchtype=author&query=Sarsa%2C+M+L">M. L. Sarsa</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.12480v2-abstract-short" style="display: inline;"> The amount of light produced by nuclear recoils in scintillating targets is strongly quenched compared to that produced by electrons. A precise understanding of the quenching factor is particularly interesting for WIMP searches and CE谓NS measurements since both rely on nuclear recoils, whereas energy calibrations are more readily accessible from electron recoils. There is a wide variation among th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12480v2-abstract-full').style.display = 'inline'; document.getElementById('2402.12480v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.12480v2-abstract-full" style="display: none;"> The amount of light produced by nuclear recoils in scintillating targets is strongly quenched compared to that produced by electrons. A precise understanding of the quenching factor is particularly interesting for WIMP searches and CE谓NS measurements since both rely on nuclear recoils, whereas energy calibrations are more readily accessible from electron recoils. There is a wide variation among the current measurements of the quenching factor in sodium iodide (NaI) crystals, especially below 10 keV, the energy region of interest for dark matter and CE谓NS studies. A better understanding of the quenching factor in NaI(Tl) is of particular interest for resolving the decades-old puzzle in the field of dark matter between the null results of most WIMP searches and the claim for dark matter detection by the DAMA/LIBRA collaboration. In this work, we measured sodium and iodine quenching factors for five small NaI(Tl) crystals grown with similar thallium concentrations and growth procedures. Unlike previous experiments, multiple crystals were tested, with measurements made in the same experimental setup to control systematic effects. The quenching factors agree in all crystals we investigated, and both sodium and iodine quenching factors are smaller than those reported by DAMA/LIBRA. The dominant systematic effect was due to the electron equivalent energy calibration originating from the non-proportional behavior of the NaI(Tl) light yield at lower energies, potentially the cause for the discrepancies among the previous measurements. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12480v2-abstract-full').style.display = 'none'; document.getElementById('2402.12480v2-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">22 pages, 27 figures, 7 tables. arXiv admin note: text overlap with arXiv:2310.07339</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.05914">arXiv:2203.05914</a> <span> [<a href="https://arxiv.org/pdf/2203.05914">pdf</a>, <a href="https://arxiv.org/format/2203.05914">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="Cosmology and Nongalactic Astrophysics">astro-ph.CO</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="High Energy Physics - Phenomenology">hep-ph</span> </div> </div> <p class="title is-5 mathjax"> Recoil imaging for directional detection of dark matter, neutrinos, and physics beyond the Standard Model </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ph?searchtype=author&query=O%27Hare%2C+C+A+J">C. A. J. O'Hare</a>, <a href="/search/hep-ph?searchtype=author&query=Loomba%2C+D">D. Loomba</a>, <a href="/search/hep-ph?searchtype=author&query=Altenm%C3%BCller%2C+K">K. Altenm眉ller</a>, <a href="/search/hep-ph?searchtype=author&query=%C3%81lvarez-Pol%2C+H">H. 脕lvarez-Pol</a>, <a href="/search/hep-ph?searchtype=author&query=Amaro%2C+F+D">F. D. Amaro</a>, <a href="/search/hep-ph?searchtype=author&query=Ara%C3%BAjo%2C+H+M">H. M. Ara煤jo</a>, <a href="/search/hep-ph?searchtype=author&query=Sierra%2C+D+A">D. Aristizabal Sierra</a>, <a href="/search/hep-ph?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a>, <a href="/search/hep-ph?searchtype=author&query=Atti%C3%A9%2C+D">D. Atti茅</a>, <a href="/search/hep-ph?searchtype=author&query=Aune%2C+S">S. Aune</a>, <a href="/search/hep-ph?searchtype=author&query=Awe%2C+C">C. Awe</a>, <a href="/search/hep-ph?searchtype=author&query=Ayyad%2C+Y">Y. Ayyad</a>, <a href="/search/hep-ph?searchtype=author&query=Baracchini%2C+E">E. Baracchini</a>, <a href="/search/hep-ph?searchtype=author&query=Barbeau%2C+P">P. Barbeau</a>, <a href="/search/hep-ph?searchtype=author&query=Battat%2C+J+B+R">J. B. R. Battat</a>, <a href="/search/hep-ph?searchtype=author&query=Bell%2C+N+F">N. F. Bell</a>, <a href="/search/hep-ph?searchtype=author&query=Biasuzzi%2C+B">B. Biasuzzi</a>, <a href="/search/hep-ph?searchtype=author&query=Bignell%2C+L+J">L. J. Bignell</a>, <a href="/search/hep-ph?searchtype=author&query=Boehm%2C+C">C. Boehm</a>, <a href="/search/hep-ph?searchtype=author&query=Bolognino%2C+I">I. Bolognino</a>, <a href="/search/hep-ph?searchtype=author&query=Brunbauer%2C+F+M">F. M. Brunbauer</a>, <a href="/search/hep-ph?searchtype=author&query=Caama%C3%B1o%2C+M">M. Caama帽o</a>, <a href="/search/hep-ph?searchtype=author&query=Cabo%2C+C">C. Cabo</a>, <a href="/search/hep-ph?searchtype=author&query=Caratelli%2C+D">D. Caratelli</a>, <a href="/search/hep-ph?searchtype=author&query=Carmona%2C+J+M">J. M. Carmona</a> , et al. (142 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="2203.05914v3-abstract-short" style="display: inline;"> Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detect… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.05914v3-abstract-full').style.display = 'inline'; document.getElementById('2203.05914v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.05914v3-abstract-full" style="display: none;"> Recoil imaging entails the detection of spatially resolved ionization tracks generated by particle interactions. This is a highly sought-after capability in many classes of detector, with broad applications across particle and astroparticle physics. However, at low energies, where ionization signatures are small in size, recoil imaging only seems to be a practical goal for micro-pattern gas detectors. This white paper outlines the physics case for recoil imaging, and puts forward a decadal plan to advance towards the directional detection of low-energy recoils with sensitivity and resolution close to fundamental performance limits. The science case covered includes: the discovery of dark matter into the neutrino fog, directional detection of sub-MeV solar neutrinos, the precision study of coherent-elastic neutrino-nucleus scattering, the detection of solar axions, the measurement of the Migdal effect, X-ray polarimetry, and several other applied physics goals. We also outline the R&D programs necessary to test concepts that are crucial to advance detector performance towards their fundamental limit: single primary electron sensitivity with full 3D spatial resolution at the $\sim$100 micron-scale. These advancements include: the use of negative ion drift, electron counting with high-definition electronic readout, time projection chambers with optical readout, and the possibility for nuclear recoil tracking in high-density gases such as argon. We also discuss the readout and electronics systems needed to scale-up such detectors to the ton-scale and beyond. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.05914v3-abstract-full').style.display = 'none'; document.getElementById('2203.05914v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 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">77 pages, 20 figures. Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.01294">arXiv:1708.01294</a> <span> [<a href="https://arxiv.org/pdf/1708.01294">pdf</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> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Theory">nucl-th</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1126/science.aao0990">10.1126/science.aao0990 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Observation of Coherent Elastic Neutrino-Nucleus Scattering </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/hep-ph?searchtype=author&query=Akimov%2C+D">D. Akimov</a>, <a href="/search/hep-ph?searchtype=author&query=Albert%2C+J+B">J. B. Albert</a>, <a href="/search/hep-ph?searchtype=author&query=An%2C+P">P. An</a>, <a href="/search/hep-ph?searchtype=author&query=Awe%2C+C">C. Awe</a>, <a href="/search/hep-ph?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/hep-ph?searchtype=author&query=Becker%2C+B">B. Becker</a>, <a href="/search/hep-ph?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/hep-ph?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/hep-ph?searchtype=author&query=Bolozdynya%2C+A">A. Bolozdynya</a>, <a href="/search/hep-ph?searchtype=author&query=Cabrera-Palmer%2C+B">B. Cabrera-Palmer</a>, <a href="/search/hep-ph?searchtype=author&query=Cervantes%2C+M">M. Cervantes</a>, <a href="/search/hep-ph?searchtype=author&query=Collar%2C+J+I">J. I. Collar</a>, <a href="/search/hep-ph?searchtype=author&query=Cooper%2C+R+J">R. J. Cooper</a>, <a href="/search/hep-ph?searchtype=author&query=Cooper%2C+R+L">R. L. Cooper</a>, <a href="/search/hep-ph?searchtype=author&query=Cuesta%2C+C">C. Cuesta</a>, <a href="/search/hep-ph?searchtype=author&query=Dean%2C+D+J">D. J. Dean</a>, <a href="/search/hep-ph?searchtype=author&query=Detwiler%2C+J+A">J. A. Detwiler</a>, <a href="/search/hep-ph?searchtype=author&query=Eberhardt%2C+A">A. Eberhardt</a>, <a href="/search/hep-ph?searchtype=author&query=Efremenko%2C+Y">Y. Efremenko</a>, <a href="/search/hep-ph?searchtype=author&query=Elliott%2C+S+R">S. R. Elliott</a>, <a href="/search/hep-ph?searchtype=author&query=Erkela%2C+E+M">E. M. Erkela</a>, <a href="/search/hep-ph?searchtype=author&query=Fabris%2C+L">L. Fabris</a>, <a href="/search/hep-ph?searchtype=author&query=Febbraro%2C+M">M. Febbraro</a>, <a href="/search/hep-ph?searchtype=author&query=Fields%2C+N+E">N. E. Fields</a>, <a href="/search/hep-ph?searchtype=author&query=Fox%2C+W">W. Fox</a> , et al. (56 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="1708.01294v1-abstract-short" style="display: inline;"> The coherent elastic scattering of neutrinos off nuclei has eluded detection for four decades, even though its predicted cross-section is the largest by far of all low-energy neutrino couplings. This mode of interaction provides new opportunities to study neutrino properties, and leads to a miniaturization of detector size, with potential technological applications. We observe this process at a 6.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01294v1-abstract-full').style.display = 'inline'; document.getElementById('1708.01294v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.01294v1-abstract-full" style="display: none;"> The coherent elastic scattering of neutrinos off nuclei has eluded detection for four decades, even though its predicted cross-section is the largest by far of all low-energy neutrino couplings. This mode of interaction provides new opportunities to study neutrino properties, and leads to a miniaturization of detector size, with potential technological applications. We observe this process at a 6.7-sigma confidence level, using a low-background, 14.6-kg CsI[Na] scintillator exposed to the neutrino emissions from the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. Characteristic signatures in energy and time, predicted by the Standard Model for this process, are observed in high signal-to-background conditions. Improved constraints on non-standard neutrino interactions with quarks are derived from this initial dataset. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.01294v1-abstract-full').style.display = 'none'; document.getElementById('1708.01294v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> </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 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