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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Morris%2C+C&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Morris%2C+C&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Morris%2C+C&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <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/2410.07264">arXiv:2410.07264</a> <span> [<a href="https://arxiv.org/pdf/2410.07264">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Image and Video Processing">eess.IV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> First experimental study of multiple orientation muon tomography, with image optimization in sparse data environments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Valencia%2C+J+J">Jesus J. Valencia</a>, <a href="/search/physics?searchtype=author&query=Hecht%2C+A+A">Adam A. Hecht</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Guardincerri%2C+E">E. Guardincerri</a>, <a href="/search/physics?searchtype=author&query=Poulson%2C+D">D. Poulson</a>, <a href="/search/physics?searchtype=author&query=Bacon%2C+J">J. Bacon</a>, <a href="/search/physics?searchtype=author&query=Durham%2C+J+M">J. M. Durham</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="2410.07264v1-abstract-short" style="display: inline;"> Due to the high penetrating power of cosmic ray muons, they can be used to probe very thick and dense objects. As charged particles, they can be tracked by ionization detectors, determining the position and direction of the muons. With detectors on either side of an object, particle direction changes can be used to extract scattering information within an object. This can be used to produce a scat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.07264v1-abstract-full').style.display = 'inline'; document.getElementById('2410.07264v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.07264v1-abstract-full" style="display: none;"> Due to the high penetrating power of cosmic ray muons, they can be used to probe very thick and dense objects. As charged particles, they can be tracked by ionization detectors, determining the position and direction of the muons. With detectors on either side of an object, particle direction changes can be used to extract scattering information within an object. This can be used to produce a scattering intensity image within the object related to density and atomic number. Such imaging is typically performed with a single detector-object orientation, taking advantage of the more intense downward flux of muons, producing planar imaging with some depth-of-field information in the third dimension. Several simulation studies have been published with multi-orientation tomography, which can form a three-dimensional representation faster than a single orientation view. In this work we present the first experimental multiple orientation muon tomography study. Experimental muon-scatter based tomography was performed using a concrete filled steel drum with several different metal wedges inside, between detector planes. Data was collected from different detector-object orientations by rotating the steel drum. The data collected from each orientation were then combined using two different tomographic methods. Results showed that using a combination of multiple depth-of-field reconstructions, rather than a traditional inverse Radon transform approach used for CT, resulted in more useful images for sparser data. As cosmic ray muon flux imaging is rate limited, the imaging techniques were compared for sparse data. Using the combined depth-of-field reconstruction technique, fewer detector-object orientations were needed to reconstruct images that could be used to differentiate the metal wedge compositions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.07264v1-abstract-full').style.display = 'none'; document.getElementById('2410.07264v1-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.18288">arXiv:2409.18288</a> <span> [<a href="https://arxiv.org/pdf/2409.18288">pdf</a>, <a href="https://arxiv.org/format/2409.18288">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"> The hypothetical track-length fitting algorithm for energy measurement in liquid argon TPCs </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Alex%2C+N+S">N. S. Alex</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+T">T. Alves</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a> , et al. (1348 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="2409.18288v2-abstract-short" style="display: inline;"> This paper introduces the hypothetical track-length fitting algorithm, a novel method for measuring the kinetic energies of ionizing particles in liquid argon time projection chambers (LArTPCs). The algorithm finds the most probable offset in track length for a track-like object by comparing the measured ionization density as a function of position with a theoretical prediction of the energy loss… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.18288v2-abstract-full').style.display = 'inline'; document.getElementById('2409.18288v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.18288v2-abstract-full" style="display: none;"> This paper introduces the hypothetical track-length fitting algorithm, a novel method for measuring the kinetic energies of ionizing particles in liquid argon time projection chambers (LArTPCs). The algorithm finds the most probable offset in track length for a track-like object by comparing the measured ionization density as a function of position with a theoretical prediction of the energy loss as a function of the energy, including models of electron recombination and detector response. The algorithm can be used to measure the energies of particles that interact before they stop, such as charged pions that are absorbed by argon nuclei. The algorithm's energy measurement resolutions and fractional biases are presented as functions of particle kinetic energy and number of track hits using samples of stopping secondary charged pions in data collected by the ProtoDUNE-SP detector, and also in a detailed simulation. Additional studies describe impact of the dE/dx model on energy measurement performance. The method described in this paper to characterize the energy measurement performance can be repeated in any LArTPC experiment using stopping secondary charged pions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.18288v2-abstract-full').style.display = 'none'; document.getElementById('2409.18288v2-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 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-24-0561-LBNF-PPD, CERN-EP-2024-256 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.12725">arXiv:2408.12725</a> <span> [<a href="https://arxiv.org/pdf/2408.12725">pdf</a>, <a href="https://arxiv.org/format/2408.12725">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"> DUNE Phase II: Scientific Opportunities, Detector Concepts, Technological Solutions </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+T">T. Alves</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a> , et al. (1347 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="2408.12725v1-abstract-short" style="display: inline;"> The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase strategy toward the implementation of this leading-edge, large-scale science project. The 2023 report of the US Particle Physics Project Prioritization Panel (P5) reaffirmed this vision and strongly endorsed DUNE Phase I… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.12725v1-abstract-full').style.display = 'inline'; document.getElementById('2408.12725v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.12725v1-abstract-full" style="display: none;"> The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase strategy toward the implementation of this leading-edge, large-scale science project. The 2023 report of the US Particle Physics Project Prioritization Panel (P5) reaffirmed this vision and strongly endorsed DUNE Phase I and Phase II, as did the European Strategy for Particle Physics. While the construction of the DUNE Phase I is well underway, this White Paper focuses on DUNE Phase II planning. DUNE Phase-II consists of a third and fourth far detector (FD) module, an upgraded near detector complex, and an enhanced 2.1 MW beam. The fourth FD module is conceived as a "Module of Opportunity", aimed at expanding the physics opportunities, in addition to supporting the core DUNE science program, with more advanced technologies. This document highlights the increased science opportunities offered by the DUNE Phase II near and far detectors, including long-baseline neutrino oscillation physics, neutrino astrophysics, and physics beyond the standard model. It describes the DUNE Phase II near and far detector technologies and detector design concepts that are currently under consideration. A summary of key R&D goals and prototyping phases needed to realize the Phase II detector technical designs is also provided. DUNE's Phase II detectors, along with the increased beam power, will complete the full scope of DUNE, enabling a multi-decadal program of groundbreaking science with neutrinos. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.12725v1-abstract-full').style.display = 'none'; document.getElementById('2408.12725v1-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-TM-2833-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2408.00582">arXiv:2408.00582</a> <span> [<a href="https://arxiv.org/pdf/2408.00582">pdf</a>, <a href="https://arxiv.org/format/2408.00582">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.110.092011">10.1103/PhysRevD.110.092011 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First Measurement of the Total Inelastic Cross-Section of Positively-Charged Kaons on Argon at Energies Between 5.0 and 7.5 GeV </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+T">T. Alves</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a> , et al. (1341 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="2408.00582v1-abstract-short" style="display: inline;"> ProtoDUNE Single-Phase (ProtoDUNE-SP) is a 770-ton liquid argon time projection chamber that operated in a hadron test beam at the CERN Neutrino Platform in 2018. We present a measurement of the total inelastic cross section of charged kaons on argon as a function of kaon energy using 6 and 7 GeV/$c$ beam momentum settings. The flux-weighted average of the extracted inelastic cross section at each… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.00582v1-abstract-full').style.display = 'inline'; document.getElementById('2408.00582v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2408.00582v1-abstract-full" style="display: none;"> ProtoDUNE Single-Phase (ProtoDUNE-SP) is a 770-ton liquid argon time projection chamber that operated in a hadron test beam at the CERN Neutrino Platform in 2018. We present a measurement of the total inelastic cross section of charged kaons on argon as a function of kaon energy using 6 and 7 GeV/$c$ beam momentum settings. The flux-weighted average of the extracted inelastic cross section at each beam momentum setting was measured to be 380$\pm$26 mbarns for the 6 GeV/$c$ setting and 379$\pm$35 mbarns for the 7 GeV/$c$ setting. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2408.00582v1-abstract-full').style.display = 'none'; document.getElementById('2408.00582v1-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-211, FERMILAB-PUB-24-0216-V </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 110, (2024) 092011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.10339">arXiv:2407.10339</a> <span> [<a href="https://arxiv.org/pdf/2407.10339">pdf</a>, <a href="https://arxiv.org/format/2407.10339">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Supernova Pointing Capabilities of DUNE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+T">T. Alves</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andrade%2C+D+A">D. A. Andrade</a> , et al. (1340 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.10339v1-abstract-short" style="display: inline;"> The determination of the direction of a stellar core collapse via its neutrino emission is crucial for the identification of the progenitor for a multimessenger follow-up. A highly effective method of reconstructing supernova directions within the Deep Underground Neutrino Experiment (DUNE) is introduced. The supernova neutrino pointing resolution is studied by simulating and reconstructing electr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10339v1-abstract-full').style.display = 'inline'; document.getElementById('2407.10339v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.10339v1-abstract-full" style="display: none;"> The determination of the direction of a stellar core collapse via its neutrino emission is crucial for the identification of the progenitor for a multimessenger follow-up. A highly effective method of reconstructing supernova directions within the Deep Underground Neutrino Experiment (DUNE) is introduced. The supernova neutrino pointing resolution is studied by simulating and reconstructing electron-neutrino charged-current absorption on $^{40}$Ar and elastic scattering of neutrinos on electrons. Procedures to reconstruct individual interactions, including a newly developed technique called ``brems flipping'', as well as the burst direction from an ensemble of interactions are described. Performance of the burst direction reconstruction is evaluated for supernovae happening at a distance of 10 kpc for a specific supernova burst flux model. The pointing resolution is found to be 3.4 degrees at 68% coverage for a perfect interaction-channel classification and a fiducial mass of 40 kton, and 6.6 degrees for a 10 kton fiducial mass respectively. Assuming a 4% rate of charged-current interactions being misidentified as elastic scattering, DUNE's burst pointing resolution is found to be 4.3 degrees (8.7 degrees) at 68% coverage. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.10339v1-abstract-full').style.display = 'none'; document.getElementById('2407.10339v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-24-0319-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.02309">arXiv:2405.02309</a> <span> [<a href="https://arxiv.org/pdf/2405.02309">pdf</a>, <a href="https://arxiv.org/format/2405.02309">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> YAP:Ce scintillator as an absolute ultracold neutron detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Krivo%C5%A1%2C+M">M. Krivo拧</a>, <a href="/search/physics?searchtype=author&query=Tang%2C+Z">Z. Tang</a>, <a href="/search/physics?searchtype=author&query=Floyd%2C+N">N. Floyd</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+-">C. -Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Martinez%2C+I+F">I. F. Martinez</a>, <a href="/search/physics?searchtype=author&query=Navazo%2C+A+S+C">A. S. C. Navazo</a>, <a href="/search/physics?searchtype=author&query=O%27Shaughnessy%2C+C+M">C. M. O'Shaughnessy</a>, <a href="/search/physics?searchtype=author&query=Renner%2C+E+L">E. L. Renner</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C+R+W">R. W. Pattie</a>, <a href="/search/physics?searchtype=author&query=Young%2C+A+R">A. R. Young</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.02309v1-abstract-short" style="display: inline;"> The upcoming UCNProBe experiment at Los Alamos National Laboratory will measure the $尾$-decay rate of free neutrons with different systematic uncertainties than previous beam-based neutron lifetime experiments. We have developed a new $^{10}$B-coated YAP:Ce scintillator whose properties are presented. The advantage of the YAP:Ce scintillator is its high Fermi potential, which reduces the probabili… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.02309v1-abstract-full').style.display = 'inline'; document.getElementById('2405.02309v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.02309v1-abstract-full" style="display: none;"> The upcoming UCNProBe experiment at Los Alamos National Laboratory will measure the $尾$-decay rate of free neutrons with different systematic uncertainties than previous beam-based neutron lifetime experiments. We have developed a new $^{10}$B-coated YAP:Ce scintillator whose properties are presented. The advantage of the YAP:Ce scintillator is its high Fermi potential, which reduces the probability for upscattering of ultracold neutrons, and its short decay time, which is important at high counting rates. Birks' coefficient of YAP:Ce was measured to be ($5.56^{+0.05}_{-0.30})\times 10^{-4}$ cm/MeV and light losses due to 120 nm of $^{10}$B-coating to be about 60%. The loss of light from YAP:Ce due to transmission through deuterated polystyrene scintillator was about 50%. The efficiency for counting neutrons that are captured on the $^{10}$B coating is (86.82 $\pm$ 2.61)%. Measurement with ultracold neutrons showed that YAP:Ce crystal counted 8% to 28% more UCNs compared to ZnS screen. This may be due to an uneven coating of $^{10}$B on the rough surface. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.02309v1-abstract-full').style.display = 'none'; document.getElementById('2405.02309v1-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 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.12857">arXiv:2404.12857</a> <span> [<a href="https://arxiv.org/pdf/2404.12857">pdf</a>, <a href="https://arxiv.org/ps/2404.12857">ps</a>, <a href="https://arxiv.org/format/2404.12857">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2024.169390">10.1016/j.nima.2024.169390 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Development of Two-Dimensional Neutron Imager with a Sandwich Configuration </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kamiya%2C+Y">Y. Kamiya</a>, <a href="/search/physics?searchtype=author&query=Nishimura%2C+R">R. Nishimura</a>, <a href="/search/physics?searchtype=author&query=Mitsui%2C+S">S. Mitsui</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Z. Wang</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Baldwin%2C+J+K">J. K. Baldwin</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Akamatsu%2C+S">S. Akamatsu</a>, <a href="/search/physics?searchtype=author&query=Iwase%2C+H">H. Iwase</a>, <a href="/search/physics?searchtype=author&query=Arai%2C+Y">Y. Arai</a>, <a href="/search/physics?searchtype=author&query=Murata%2C+J">J. Murata</a>, <a href="/search/physics?searchtype=author&query=Asai%2C+S">S. Asai</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="2404.12857v1-abstract-short" style="display: inline;"> We have developed a two-dimensional neutron imager based on a semiconductor pixelated sensor, especially designed for experiments measuring of a spatial and a temporal behavior of quantum bound states of ultra-cold neutrons. Through these measurements, we expect to measure the ratio between the inertial and gravitational masses of neutrons and to test the equivalence principle in the quantum regim… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.12857v1-abstract-full').style.display = 'inline'; document.getElementById('2404.12857v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.12857v1-abstract-full" style="display: none;"> We have developed a two-dimensional neutron imager based on a semiconductor pixelated sensor, especially designed for experiments measuring of a spatial and a temporal behavior of quantum bound states of ultra-cold neutrons. Through these measurements, we expect to measure the ratio between the inertial and gravitational masses of neutrons and to test the equivalence principle in the quantum regime. As one of the principal neutron imagers, we fabricated a sensor with a sandwich configuration, named 10B-INTPIX4-sw, and tested its response to ultra-cold neutrons at the Los Alamos Neutron Science Center (LANSCE). We observed simultaneous events on both sandwiching sensors without significant loss of detection efficiency. The efficiency was evaluated to be about 16%, relative to the 10B/ZnS reference detector. The coincidence condition reduces its efficiency by a factor of about 3. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.12857v1-abstract-full').style.display = 'none'; document.getElementById('2404.12857v1-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 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.03212">arXiv:2403.03212</a> <span> [<a href="https://arxiv.org/pdf/2403.03212">pdf</a>, <a href="https://arxiv.org/format/2403.03212">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Performance of a modular ton-scale pixel-readout liquid argon time projection chamber </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+T">T. Alves</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andrade%2C+D+A">D. A. Andrade</a> , et al. (1340 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="2403.03212v1-abstract-short" style="display: inline;"> The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.03212v1-abstract-full').style.display = 'inline'; document.getElementById('2403.03212v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.03212v1-abstract-full" style="display: none;"> The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements, and provide comparisons to detector simulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.03212v1-abstract-full').style.display = 'none'; document.getElementById('2403.03212v1-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 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">47 pages, 41 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-24-0073-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.01568">arXiv:2402.01568</a> <span> [<a href="https://arxiv.org/pdf/2402.01568">pdf</a>, <a href="https://arxiv.org/format/2402.01568">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Doping Liquid Argon with Xenon in ProtoDUNE Single-Phase: Effects on Scintillation Light </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Es-sghir%2C+H+A">H. Amar Es-sghir</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andrade%2C+D+A">D. A. Andrade</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a> , et al. (1297 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="2402.01568v3-abstract-short" style="display: inline;"> Doping of liquid argon TPCs (LArTPCs) with a small concentration of xenon is a technique for light-shifting and facilitates the detection of the liquid argon scintillation light. In this paper, we present the results of the first doping test ever performed in a kiloton-scale LArTPC. From February to May 2020, we carried out this special run in the single-phase DUNE Far Detector prototype (ProtoDUN… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.01568v3-abstract-full').style.display = 'inline'; document.getElementById('2402.01568v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.01568v3-abstract-full" style="display: none;"> Doping of liquid argon TPCs (LArTPCs) with a small concentration of xenon is a technique for light-shifting and facilitates the detection of the liquid argon scintillation light. In this paper, we present the results of the first doping test ever performed in a kiloton-scale LArTPC. From February to May 2020, we carried out this special run in the single-phase DUNE Far Detector prototype (ProtoDUNE-SP) at CERN, featuring 720 t of total liquid argon mass with 410 t of fiducial mass. A 5.4 ppm nitrogen contamination was present during the xenon doping campaign. The goal of the run was to measure the light and charge response of the detector to the addition of xenon, up to a concentration of 18.8 ppm. The main purpose was to test the possibility for reduction of non-uniformities in light collection, caused by deployment of photon detectors only within the anode planes. Light collection was analysed as a function of the xenon concentration, by using the pre-existing photon detection system (PDS) of ProtoDUNE-SP and an additional smaller set-up installed specifically for this run. In this paper we first summarize our current understanding of the argon-xenon energy transfer process and the impact of the presence of nitrogen in argon with and without xenon dopant. We then describe the key elements of ProtoDUNE-SP and the injection method deployed. Two dedicated photon detectors were able to collect the light produced by xenon and the total light. The ratio of these components was measured to be about 0.65 as 18.8 ppm of xenon were injected. We performed studies of the collection efficiency as a function of the distance between tracks and light detectors, demonstrating enhanced uniformity of response for the anode-mounted PDS. We also show that xenon doping can substantially recover light losses due to contamination of the liquid argon by nitrogen. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.01568v3-abstract-full').style.display = 'none'; document.getElementById('2402.01568v3-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 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">36 pages, 20 figures. Corrected author list; corrected typos across paper and polished text</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-2024-024; FERMILAB-PUB-23-0819-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2312.03130">arXiv:2312.03130</a> <span> [<a href="https://arxiv.org/pdf/2312.03130">pdf</a>, <a href="https://arxiv.org/format/2312.03130">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The DUNE Far Detector Vertical Drift Technology, Technical Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amar%2C+H">H. Amar</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andrade%2C+D+A">D. A. Andrade</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a> , et al. (1304 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="2312.03130v1-abstract-short" style="display: inline;"> DUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precisi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03130v1-abstract-full').style.display = 'inline'; document.getElementById('2312.03130v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2312.03130v1-abstract-full" style="display: none;"> DUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are optically powered. This Technical Design Report describes in detail the technical implementations of each subsystem of this LArTPC that, together with the other far detector modules and the near detector, will enable DUNE to achieve its physics goals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2312.03130v1-abstract-full').style.display = 'none'; document.getElementById('2312.03130v1-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 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">425 pages; 281 figures Central editing team: A. Heavey, S. Kettell, A. Marchionni, S. Palestini, S. Rajogopalan, R. J. Wilson</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab Report no: TM-2813-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.05726">arXiv:2311.05726</a> <span> [<a href="https://arxiv.org/pdf/2311.05726">pdf</a>, <a href="https://arxiv.org/format/2311.05726">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="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.3389/fphy.2024.1334298">10.3389/fphy.2024.1334298 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neural Network Methods for Radiation Detectors and Imaging </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lin%2C+S">S. Lin</a>, <a href="/search/physics?searchtype=author&query=Ning%2C+S">S. Ning</a>, <a href="/search/physics?searchtype=author&query=Zhu%2C+H">H. Zhu</a>, <a href="/search/physics?searchtype=author&query=Zhou%2C+T">T. Zhou</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S">S. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cherukara%2C+M">M. Cherukara</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+R+T">R. T. Chen</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Z. Wang</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="2311.05726v1-abstract-short" style="display: inline;"> Recent advances in image data processing through machine learning and especially deep neural networks (DNNs) allow for new optimization and performance-enhancement schemes for radiation detectors and imaging hardware through data-endowed artificial intelligence. We give an overview of data generation at photon sources, deep learning-based methods for image processing tasks, and hardware solutions… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05726v1-abstract-full').style.display = 'inline'; document.getElementById('2311.05726v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.05726v1-abstract-full" style="display: none;"> Recent advances in image data processing through machine learning and especially deep neural networks (DNNs) allow for new optimization and performance-enhancement schemes for radiation detectors and imaging hardware through data-endowed artificial intelligence. We give an overview of data generation at photon sources, deep learning-based methods for image processing tasks, and hardware solutions for deep learning acceleration. Most existing deep learning approaches are trained offline, typically using large amounts of computational resources. However, once trained, DNNs can achieve fast inference speeds and can be deployed to edge devices. A new trend is edge computing with less energy consumption (hundreds of watts or less) and real-time analysis potential. While popularly used for edge computing, electronic-based hardware accelerators ranging from general purpose processors such as central processing units (CPUs) to application-specific integrated circuits (ASICs) are constantly reaching performance limits in latency, energy consumption, and other physical constraints. These limits give rise to next-generation analog neuromorhpic hardware platforms, such as optical neural networks (ONNs), for high parallel, low latency, and low energy computing to boost deep learning acceleration. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.05726v1-abstract-full').style.display = 'none'; document.getElementById('2311.05726v1-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 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LA-UR-23-32395 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.00082">arXiv:2310.00082</a> <span> [<a href="https://arxiv.org/pdf/2310.00082">pdf</a>, <a href="https://arxiv.org/format/2310.00082">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="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Scintillation characteristics of the EJ-299-02H scintillator </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Floyd%2C+N">N. Floyd</a>, <a href="/search/physics?searchtype=author&query=Hassan%2C+M+T">Md. T. Hassan</a>, <a href="/search/physics?searchtype=author&query=Tang%2C+Z">Z. Tang</a>, <a href="/search/physics?searchtype=author&query=Krivos%2C+M">M. Krivos</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Johnson%2C+B+A">B. A. Johnson</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+-">C. -Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Navazo%2C+A+S+C">A. S. C. Navazo</a>, <a href="/search/physics?searchtype=author&query=O%27Shaughnessy%2C+C+M">C. M. O'Shaughnessy</a>, <a href="/search/physics?searchtype=author&query=Renner%2C+E+L">E. L. Renner</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C+R+W">R. W. Pattie</a>, <a href="/search/physics?searchtype=author&query=Young%2C+A+R">A. R. Young</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.00082v2-abstract-short" style="display: inline;"> A study of the dead layer thickness and quenching factor of a plastic scintillator for use in ultracold neutron (UCN) experiments is described. Alpha spectroscopy was used to determine the thickness of a thin surface dead layer, and the relative light outputs from the decay of $^{241}$Am and Compton scattering of electrons were used to extract the quenching parameter. With these characteristics of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00082v2-abstract-full').style.display = 'inline'; document.getElementById('2310.00082v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.00082v2-abstract-full" style="display: none;"> A study of the dead layer thickness and quenching factor of a plastic scintillator for use in ultracold neutron (UCN) experiments is described. Alpha spectroscopy was used to determine the thickness of a thin surface dead layer, and the relative light outputs from the decay of $^{241}$Am and Compton scattering of electrons were used to extract the quenching parameter. With these characteristics of the material known, the light yield of the scintillator can be calculated. The ability to make these scintillators deuterated, accompanied by its relatively thin dead layer, make it ideal for use in UCN experiment, where the light yield of decay electrons and alphas from neutron capture are critical for counting events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.00082v2-abstract-full').style.display = 'none'; document.getElementById('2310.00082v2-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 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.09562">arXiv:2305.09562</a> <span> [<a href="https://arxiv.org/pdf/2305.09562">pdf</a>, <a href="https://arxiv.org/format/2305.09562">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="Data Analysis, Statistics and Probability">physics.data-an</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168769">10.1016/j.nima.2023.168769 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Demonstration of Sub-micron UCN Position Resolution using Room-temperature CMOS Sensor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Lin%2C+S">S. Lin</a>, <a href="/search/physics?searchtype=author&query=Baldwin%2C+J+K">J. K. Baldwin</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S+A">S. A. Currie</a>, <a href="/search/physics?searchtype=author&query=Filippone%2C+B">B. Filippone</a>, <a href="/search/physics?searchtype=author&query=Fries%2C+E+M">E. M. Fries</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Li%2C+W">W. Li</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Musedinovic%2C+R">R. Musedinovic</a>, <a href="/search/physics?searchtype=author&query=O%27Shaughnessy%2C+C">C. O'Shaughnessy</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C+R+W">R. W. Pattie</a>, <a href="/search/physics?searchtype=author&query=Salvat%2C+D+J">D. J. Salvat</a>, <a href="/search/physics?searchtype=author&query=Saunders%2C+A">A. Saunders</a>, <a href="/search/physics?searchtype=author&query=Sharapov%2C+E+I">E. I. Sharapov</a>, <a href="/search/physics?searchtype=author&query=Singh%2C+M">M. Singh</a>, <a href="/search/physics?searchtype=author&query=Sun%2C+X">X. Sun</a>, <a href="/search/physics?searchtype=author&query=Tang%2C+Z">Z. Tang</a>, <a href="/search/physics?searchtype=author&query=Uhrich%2C+W">W. Uhrich</a>, <a href="/search/physics?searchtype=author&query=Wei%2C+W">W. Wei</a> , et al. (3 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="2305.09562v1-abstract-short" style="display: inline;"> High spatial resolution of ultracold neutron (UCN) measurement is of growing interest to UCN experiments such as UCN spectrometers, UCN polarimeters, quantum physics of UCNs, and quantum gravity. Here we utilize physics-informed deep learning to enhance the experimental position resolution and to demonstrate sub-micron spatial resolutions for UCN position measurements obtained using a room-tempera… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.09562v1-abstract-full').style.display = 'inline'; document.getElementById('2305.09562v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.09562v1-abstract-full" style="display: none;"> High spatial resolution of ultracold neutron (UCN) measurement is of growing interest to UCN experiments such as UCN spectrometers, UCN polarimeters, quantum physics of UCNs, and quantum gravity. Here we utilize physics-informed deep learning to enhance the experimental position resolution and to demonstrate sub-micron spatial resolutions for UCN position measurements obtained using a room-temperature CMOS sensor, extending our previous work [1, 2] that demonstrated a position uncertainty of 1.5 microns. We explore the use of the open-source software Allpix Squared to generate experiment-like synthetic hit images with ground-truth position labels. We use physics-informed deep learning by training a fully-connected neural network (FCNN) to learn a mapping from input hit images to output hit position. The automated analysis for sub-micron position resolution in UCN detection combined with the fast data rates of current and next generation UCN sources will enable improved precision for future UCN research and applications. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.09562v1-abstract-full').style.display = 'none'; document.getElementById('2305.09562v1-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2301.11865">arXiv:2301.11865</a> <span> [<a href="https://arxiv.org/pdf/2301.11865">pdf</a>, <a href="https://arxiv.org/format/2301.11865">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="Image and Video Processing">eess.IV</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/10.22323/1.420.0041">10.22323/1.420.0041 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ultrafast CMOS image sensors and data-enabled super-resolution for multimodal radiographic imaging and tomography </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Yue%2C+X">Xin Yue</a>, <a href="/search/physics?searchtype=author&query=Lin%2C+S">Shanny Lin</a>, <a href="/search/physics?searchtype=author&query=Li%2C+W">Wenting Li</a>, <a href="/search/physics?searchtype=author&query=Wolfe%2C+B+T">Bradley T. Wolfe</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S">Steven Clayton</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">Mark Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Spannagel%2C+S">Simon Spannagel</a>, <a href="/search/physics?searchtype=author&query=Ramberg%2C+E">Erik Ramberg</a>, <a href="/search/physics?searchtype=author&query=Estrada%2C+J">Juan Estrada</a>, <a href="/search/physics?searchtype=author&query=Zhu%2C+H">Hao Zhu</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+J">Jifeng Liu</a>, <a href="/search/physics?searchtype=author&query=Fossum%2C+E+R">Eric R. Fossum</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Zhehui Wang</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="2301.11865v1-abstract-short" style="display: inline;"> We summarize recent progress in ultrafast Complementary Metal Oxide Semiconductor (CMOS) image sensor development and the application of neural networks for post-processing of CMOS and charge-coupled device (CCD) image data to achieve sub-pixel resolution (thus $super$-$resolution$). The combination of novel CMOS pixel designs and data-enabled image post-processing provides a promising path toward… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11865v1-abstract-full').style.display = 'inline'; document.getElementById('2301.11865v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2301.11865v1-abstract-full" style="display: none;"> We summarize recent progress in ultrafast Complementary Metal Oxide Semiconductor (CMOS) image sensor development and the application of neural networks for post-processing of CMOS and charge-coupled device (CCD) image data to achieve sub-pixel resolution (thus $super$-$resolution$). The combination of novel CMOS pixel designs and data-enabled image post-processing provides a promising path towards ultrafast high-resolution multi-modal radiographic imaging and tomography applications. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2301.11865v1-abstract-full').style.display = 'none'; document.getElementById('2301.11865v1-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 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 10 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Los Alamos National Laboratory report number LA-UR-23-20744 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Proceedings of Science ; Vol.420, p.041, 8 May 2023 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.10322">arXiv:2212.10322</a> <span> [<a href="https://arxiv.org/pdf/2212.10322">pdf</a>, <a href="https://arxiv.org/format/2212.10322">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1109/TNS.2023.3290826">10.1109/TNS.2023.3290826 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Needs, trends, and advances in scintillators for radiographic imaging and tomography </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Zhehui Wang</a>, <a href="/search/physics?searchtype=author&query=Dujardin%2C+C">Christophe Dujardin</a>, <a href="/search/physics?searchtype=author&query=Freeman%2C+M+S">Matthew S. Freeman</a>, <a href="/search/physics?searchtype=author&query=Gehring%2C+A+E">Amanda E. Gehring</a>, <a href="/search/physics?searchtype=author&query=Hunter%2C+J+F">James F. Hunter</a>, <a href="/search/physics?searchtype=author&query=Lecoq%2C+P">Paul Lecoq</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+W">Wei Liu</a>, <a href="/search/physics?searchtype=author&query=Melcher%2C+C+L">Charles L. Melcher</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Nikl%2C+M">Martin Nikl</a>, <a href="/search/physics?searchtype=author&query=Pilania%2C+G">Ghanshyam Pilania</a>, <a href="/search/physics?searchtype=author&query=Pokharel%2C+R">Reeju Pokharel</a>, <a href="/search/physics?searchtype=author&query=Robertson%2C+D+G">Daniel G. Robertson</a>, <a href="/search/physics?searchtype=author&query=Rutstrom%2C+D+J">Daniel J. Rutstrom</a>, <a href="/search/physics?searchtype=author&query=Sjue%2C+S+K">Sky K. Sjue</a>, <a href="/search/physics?searchtype=author&query=Tremsin%2C+A+S">Anton S. Tremsin</a>, <a href="/search/physics?searchtype=author&query=Watson%2C+S+A">S. A. Watson</a>, <a href="/search/physics?searchtype=author&query=Wiggins%2C+B+W">Brenden W. Wiggins</a>, <a href="/search/physics?searchtype=author&query=Winch%2C+N+M">Nicola M. Winch</a>, <a href="/search/physics?searchtype=author&query=Zhuravleva%2C+M">Mariya Zhuravleva</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.10322v1-abstract-short" style="display: inline;"> Scintillators are important materials for radiographic imaging and tomography (RadIT), when ionizing radiations are used to reveal internal structures of materials. Since its invention by R枚ntgen, RadIT now come in many modalities such as absorption-based X-ray radiography, phase contrast X-ray imaging, coherent X-ray diffractive imaging, high-energy X- and $纬-$ray radiography at above 1 MeV, X-ra… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.10322v1-abstract-full').style.display = 'inline'; document.getElementById('2212.10322v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.10322v1-abstract-full" style="display: none;"> Scintillators are important materials for radiographic imaging and tomography (RadIT), when ionizing radiations are used to reveal internal structures of materials. Since its invention by R枚ntgen, RadIT now come in many modalities such as absorption-based X-ray radiography, phase contrast X-ray imaging, coherent X-ray diffractive imaging, high-energy X- and $纬-$ray radiography at above 1 MeV, X-ray computed tomography (CT), proton imaging and tomography (IT), neutron IT, positron emission tomography (PET), high-energy electron radiography, muon tomography, etc. Spatial, temporal resolution, sensitivity, and radiation hardness, among others, are common metrics for RadIT performance, which are enabled by, in addition to scintillators, advances in high-luminosity accelerators and high-power lasers, photodetectors especially CMOS pixelated sensor arrays, and lately data science. Medical imaging, nondestructive testing, nuclear safety and safeguards are traditional RadIT applications. Examples of growing or emerging applications include space, additive manufacturing, machine vision, and virtual reality or `metaverse'. Scintillator metrics such as light yield and decay time are correlated to RadIT metrics. More than 160 kinds of scintillators and applications are presented during the SCINT22 conference. New trends include inorganic and organic scintillator heterostructures, liquid phase synthesis of perovskites and $渭$m-thick films, use of multiphysics models and data science to guide scintillator development, structural innovations such as photonic crystals, nanoscintillators enhanced by the Purcell effect, novel scintillator fibers, and multilayer configurations. Opportunities exist through optimization of RadIT with reduced radiation dose, data-driven measurements, photon/particle counting and tracking methods supplementing time-integrated measurements, and multimodal RadIT. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.10322v1-abstract-full').style.display = 'none'; document.getElementById('2212.10322v1-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 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">45 pages, 43 Figures, SCINT22 conference overview</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Los Alamos report number LA-UR-22-32994 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> IEEE Transactions on Nuclear Science ( Volume: 70, Issue: 7, July 2023), pp. 1244 - 1280 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.09807">arXiv:2212.09807</a> <span> [<a href="https://arxiv.org/pdf/2212.09807">pdf</a>, <a href="https://arxiv.org/format/2212.09807">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Highly-parallelized simulation of a pixelated LArTPC on a GPU </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a> , et al. (1282 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.09807v3-abstract-short" style="display: inline;"> The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we pr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.09807v3-abstract-full').style.display = 'inline'; document.getElementById('2212.09807v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.09807v3-abstract-full" style="display: none;"> The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on $10^3$ pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.09807v3-abstract-full').style.display = 'none'; document.getElementById('2212.09807v3-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">26 pages, 15 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-22-926-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2211.01166">arXiv:2211.01166</a> <span> [<a href="https://arxiv.org/pdf/2211.01166">pdf</a>, <a href="https://arxiv.org/format/2211.01166">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a> , et al. (1235 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="2211.01166v4-abstract-short" style="display: inline;"> Measurements of electrons from $谓_e$ interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.01166v4-abstract-full').style.display = 'inline'; document.getElementById('2211.01166v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2211.01166v4-abstract-full" style="display: none;"> Measurements of electrons from $谓_e$ interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is one of the prototypes for the DUNE far detector, built and operated at CERN as a charged particle test beam experiment. A sample of low-energy electrons produced by the decay of cosmic muons is selected with a purity of 95%. This sample is used to calibrate the low-energy electron energy scale with two techniques. An electron energy calibration based on a cosmic ray muon sample uses calibration constants derived from measured and simulated cosmic ray muon events. Another calibration technique makes use of the theoretically well-understood Michel electron energy spectrum to convert reconstructed charge to electron energy. In addition, the effects of detector response to low-energy electron energy scale and its resolution including readout electronics threshold effects are quantified. Finally, the relation between the theoretical and reconstructed low-energy electron energy spectrum is derived and the energy resolution is characterized. The low-energy electron selection presented here accounts for about 75% of the total electron deposited energy. After the addition of lost energy using a Monte Carlo simulation, the energy resolution improves from about 40% to 25% at 50~MeV. These results are used to validate the expected capabilities of the DUNE far detector to reconstruct low-energy electrons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2211.01166v4-abstract-full').style.display = 'none'; document.getElementById('2211.01166v4-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 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">19 pages, 10 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-22-784, CERN-EP-DRAFT-MISC-2022-008 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 107, 092012 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.00003">arXiv:2209.00003</a> <span> [<a href="https://arxiv.org/pdf/2209.00003">pdf</a>, <a href="https://arxiv.org/format/2209.00003">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="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.2023.168105">10.1016/j.nima.2023.168105 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Characterization of the new Ultracold Neutron beamline at the LANL UCN facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Wong%2C+D+K+-">D. K. -T. Wong</a>, <a href="/search/physics?searchtype=author&query=Hassan%2C+M+T">M. T. Hassan</a>, <a href="/search/physics?searchtype=author&query=Burdine%2C+J+F">J. F. Burdine</a>, <a href="/search/physics?searchtype=author&query=Chupp%2C+T+E">T. E. Chupp</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S+A">S. A. Currie</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+-">C. -Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=O%27Shaughnessy%2C+C+M">C. M. O'Shaughnessy</a>, <a href="/search/physics?searchtype=author&query=Reid%2C+A">A. Reid</a>, <a href="/search/physics?searchtype=author&query=Sachdeva%2C+N">N. Sachdeva</a>, <a href="/search/physics?searchtype=author&query=Uhrich%2C+W">W. Uhrich</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.00003v3-abstract-short" style="display: inline;"> The neutron electric dipole moment (nEDM) experiment that is currently being developed at Los Alamos National Laboratory (LANL) will use ultracold neutrons (UCN) and Ramsey's method of separated oscillatory fields to search for a nEDM. In this paper, we present measurements of UCN storage and UCN transport performed during the commissioning of a new beamline at the LANL UCN source and demonstrate… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.00003v3-abstract-full').style.display = 'inline'; document.getElementById('2209.00003v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.00003v3-abstract-full" style="display: none;"> The neutron electric dipole moment (nEDM) experiment that is currently being developed at Los Alamos National Laboratory (LANL) will use ultracold neutrons (UCN) and Ramsey's method of separated oscillatory fields to search for a nEDM. In this paper, we present measurements of UCN storage and UCN transport performed during the commissioning of a new beamline at the LANL UCN source and demonstrate a sufficient number of stored polarized UCN to achieve a statistical uncertainty of $未d_n = 2\times 10^{-27}$~$e\cdot\text{cm}$ in 5 calendar years of running. We also present an analytical model describing data that provides a simple parameterization of the input UCN energy spectrum on the new beamline. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.00003v3-abstract-full').style.display = 'none'; document.getElementById('2209.00003v3-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 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 13 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LA-UR-22-28534 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl. Instrum. Methods Phys. Res. A (2023) 168105 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2206.14521">arXiv:2206.14521</a> <span> [<a href="https://arxiv.org/pdf/2206.14521">pdf</a>, <a href="https://arxiv.org/format/2206.14521">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-023-11733-2">10.1140/epjc/s10052-023-11733-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Adriano%2C+C">C. Adriano</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Akbar%2C+F">F. Akbar</a>, <a href="/search/physics?searchtype=author&query=Ali-Mohammadzadeh%2C+B">B. Ali-Mohammadzadeh</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=AlRashed%2C+M">M. AlRashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a> , et al. (1203 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="2206.14521v2-abstract-short" style="display: inline;"> The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandora is the primary event reconstruction software used at ProtoDUNE-SP, a prototype for the Deep Underground Neutrino Experiment far detector. ProtoDUNE-SP, located at CERN, is exposed to a char… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.14521v2-abstract-full').style.display = 'inline'; document.getElementById('2206.14521v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2206.14521v2-abstract-full" style="display: none;"> The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandora is the primary event reconstruction software used at ProtoDUNE-SP, a prototype for the Deep Underground Neutrino Experiment far detector. ProtoDUNE-SP, located at CERN, is exposed to a charged-particle test beam. This paper gives an overview of the Pandora reconstruction algorithms and how they have been tailored for use at ProtoDUNE-SP. In complex events with numerous cosmic-ray and beam background particles, the simulated reconstruction and identification efficiency for triggered test-beam particles is above 80% for the majority of particle type and beam momentum combinations. Specifically, simulated 1 GeV/$c$ charged pions and protons are correctly reconstructed and identified with efficiencies of 86.1$\pm0.6$% and 84.1$\pm0.6$%, respectively. The efficiencies measured for test-beam data are shown to be within 5% of those predicted by the simulation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.14521v2-abstract-full').style.display = 'none'; document.getElementById('2206.14521v2-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">39 pages, 20 figures. Accepted version. Published version available in Eur. Phys. J. C 83, 618 (2023) https://doi.org/10.1140/epjc/s10052-023-11733-2</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-22-488-AD-ESH-LBNF-ND-SCD, CERN-EP-DRAFT-MISC-2022-007 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 83, 618 (2023) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.02323">arXiv:2205.02323</a> <span> [<a href="https://arxiv.org/pdf/2205.02323">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="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/PhysRevC.106.065506">10.1103/PhysRevC.106.065506 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+F+M">F. M. Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Fries%2C+E+M">E. M. Fries</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+T">T. Bailey</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Callahan%2C+N+B">N. B. Callahan</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+J+H">J. H. Choi</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S+A">S. A. Currie</a>, <a href="/search/physics?searchtype=author&query=Dawid%2C+M">M. Dawid</a>, <a href="/search/physics?searchtype=author&query=Filippone%2C+B+W">B. W. Filippone</a>, <a href="/search/physics?searchtype=author&query=Fox%2C+W">W. Fox</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=George%2C+E">E. George</a>, <a href="/search/physics?searchtype=author&query=Hayen%2C+L">L. Hayen</a>, <a href="/search/physics?searchtype=author&query=Hickerson%2C+K+P">K. P. Hickerson</a>, <a href="/search/physics?searchtype=author&query=Hoffbauer%2C+M+A">M. A. Hoffbauer</a>, <a href="/search/physics?searchtype=author&query=Hoffman%2C+K">K. Hoffman</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Komives%2C+A">A. Komives</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+-">C. -Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Musedinovic%2C+R">R. Musedinovic</a> , et al. (17 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2205.02323v1-abstract-short" style="display: inline;"> The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing protons in cold neutron beams and the lifetime measured in neutron storage experiments. Measurements using different techniques are important for inve… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.02323v1-abstract-full').style.display = 'inline'; document.getElementById('2205.02323v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.02323v1-abstract-full" style="display: none;"> The past two decades have yielded several new measurements and reanalyses of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most precise measurements of the neutron decay rate producing protons in cold neutron beams and the lifetime measured in neutron storage experiments. Measurements using different techniques are important for investigating whether there are unidentified systematic effects in any of the measurements. In this paper we report a new measurement using the Los Alamos asymmetric magneto-gravitational trap where the surviving neutrons are counted external to the trap using the fill and dump method. The new measurement gives a free neutron lifetime of . Although this measurement is not as precise, it is in statistical agreement with previous results using in situ counting in the same apparatus. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.02323v1-abstract-full').style.display = 'none'; document.getElementById('2205.02323v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> LA-UR-22-23486 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.17053">arXiv:2203.17053</a> <span> [<a href="https://arxiv.org/pdf/2203.17053">pdf</a>, <a href="https://arxiv.org/format/2203.17053">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-10791-2">10.1140/epjc/s10052-022-10791-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Separation of track- and shower-like energy deposits in ProtoDUNE-SP using a convolutional neural network </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Ali-Mohammadzadeh%2C+B">B. Ali-Mohammadzadeh</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=AlRashed%2C+M">M. AlRashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a> , et al. (1204 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="2203.17053v2-abstract-short" style="display: inline;"> Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the technology has been used in a number of recent neutrino experiments, and is the technology of choice for the Deep Underground Neutrino Experiment (DUNE). In order to perform high precision measurements of neutrinos in the det… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.17053v2-abstract-full').style.display = 'inline'; document.getElementById('2203.17053v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.17053v2-abstract-full" style="display: none;"> Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the technology has been used in a number of recent neutrino experiments, and is the technology of choice for the Deep Underground Neutrino Experiment (DUNE). In order to perform high precision measurements of neutrinos in the detector, final state particles need to be effectively identified, and their energy accurately reconstructed. This article proposes an algorithm based on a convolutional neural network to perform the classification of energy deposits and reconstructed particles as track-like or arising from electromagnetic cascades. Results from testing the algorithm on data from ProtoDUNE-SP, a prototype of the DUNE far detector, are presented. The network identifies track- and shower-like particles, as well as Michel electrons, with high efficiency. The performance of the algorithm is consistent between data and simulation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.17053v2-abstract-full').style.display = 'none'; document.getElementById('2203.17053v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 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">31 pages, 15 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-22-240-AD-ESH-LBNF-ND-SCD, CERN-EP-2022-077 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur.Phys.J.C 82 (2022) 10, 903 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.16134">arXiv:2203.16134</a> <span> [<a href="https://arxiv.org/pdf/2203.16134">pdf</a>, <a href="https://arxiv.org/format/2203.16134">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Ali-Mohammadzadeh%2C+B">B. Ali-Mohammadzadeh</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=AlRashed%2C+M">M. AlRashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Alvarez%2C+R">R. Alvarez</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a> , et al. (1202 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="2203.16134v4-abstract-short" style="display: inline;"> DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6x6x6m3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.16134v4-abstract-full').style.display = 'inline'; document.getElementById('2203.16134v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.16134v4-abstract-full" style="display: none;"> DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6x6x6m3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.16134v4-abstract-full').style.display = 'none'; document.getElementById('2203.16134v4-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 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 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">31 pages, 29 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CERN-EP-DRAFT-MISC-2022-003; FERMILAB-PUB-22-242-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.03723">arXiv:2109.03723</a> <span> [<a href="https://arxiv.org/pdf/2109.03723">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computer Vision and Pattern Recognition">cs.CV</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Medical Physics">physics.med-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Neurons and Cognition">q-bio.NC</span> </div> </div> <p class="title is-5 mathjax"> Disentangling Alzheimer's disease neurodegeneration from typical brain aging using machine learning </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Hwang%2C+G">Gyujoon Hwang</a>, <a href="/search/physics?searchtype=author&query=Abdulkadir%2C+A">Ahmed Abdulkadir</a>, <a href="/search/physics?searchtype=author&query=Erus%2C+G">Guray Erus</a>, <a href="/search/physics?searchtype=author&query=Habes%2C+M">Mohamad Habes</a>, <a href="/search/physics?searchtype=author&query=Pomponio%2C+R">Raymond Pomponio</a>, <a href="/search/physics?searchtype=author&query=Shou%2C+H">Haochang Shou</a>, <a href="/search/physics?searchtype=author&query=Doshi%2C+J">Jimit Doshi</a>, <a href="/search/physics?searchtype=author&query=Mamourian%2C+E">Elizabeth Mamourian</a>, <a href="/search/physics?searchtype=author&query=Rashid%2C+T">Tanweer Rashid</a>, <a href="/search/physics?searchtype=author&query=Bilgel%2C+M">Murat Bilgel</a>, <a href="/search/physics?searchtype=author&query=Fan%2C+Y">Yong Fan</a>, <a href="/search/physics?searchtype=author&query=Sotiras%2C+A">Aristeidis Sotiras</a>, <a href="/search/physics?searchtype=author&query=Srinivasan%2C+D">Dhivya Srinivasan</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+J+C">John C. Morris</a>, <a href="/search/physics?searchtype=author&query=Marcus%2C+D">Daniel Marcus</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+M+S">Marilyn S. Albert</a>, <a href="/search/physics?searchtype=author&query=Bryan%2C+N+R">Nick R. Bryan</a>, <a href="/search/physics?searchtype=author&query=Resnick%2C+S+M">Susan M. Resnick</a>, <a href="/search/physics?searchtype=author&query=Nasrallah%2C+I+M">Ilya M. Nasrallah</a>, <a href="/search/physics?searchtype=author&query=Davatzikos%2C+C">Christos Davatzikos</a>, <a href="/search/physics?searchtype=author&query=Wolk%2C+D+A">David A. Wolk</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="2109.03723v1-abstract-short" style="display: inline;"> Neuroimaging biomarkers that distinguish between typical brain aging and Alzheimer's disease (AD) are valuable for determining how much each contributes to cognitive decline. Machine learning models can derive multi-variate brain change patterns related to the two processes, including the SPARE-AD (Spatial Patterns of Atrophy for Recognition of Alzheimer's Disease) and SPARE-BA (of Brain Aging) in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.03723v1-abstract-full').style.display = 'inline'; document.getElementById('2109.03723v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.03723v1-abstract-full" style="display: none;"> Neuroimaging biomarkers that distinguish between typical brain aging and Alzheimer's disease (AD) are valuable for determining how much each contributes to cognitive decline. Machine learning models can derive multi-variate brain change patterns related to the two processes, including the SPARE-AD (Spatial Patterns of Atrophy for Recognition of Alzheimer's Disease) and SPARE-BA (of Brain Aging) investigated herein. However, substantial overlap between brain regions affected in the two processes confounds measuring them independently. We present a methodology toward disentangling the two. T1-weighted MRI images of 4,054 participants (48-95 years) with AD, mild cognitive impairment (MCI), or cognitively normal (CN) diagnoses from the iSTAGING (Imaging-based coordinate SysTem for AGIng and NeurodeGenerative diseases) consortium were analyzed. First, a subset of AD patients and CN adults were selected based purely on clinical diagnoses to train SPARE-BA1 (regression of age using CN individuals) and SPARE-AD1 (classification of CN versus AD). Second, analogous groups were selected based on clinical and molecular markers to train SPARE-BA2 and SPARE-AD2: amyloid-positive (A+) AD continuum group (consisting of A+AD, A+MCI, and A+ and tau-positive CN individuals) and amyloid-negative (A-) CN group. Finally, the combined group of the AD continuum and A-/CN individuals was used to train SPARE-BA3, with the intention to estimate brain age regardless of AD-related brain changes. Disentangled SPARE models derived brain patterns that were more specific to the two types of the brain changes. Correlation between the SPARE-BA and SPARE-AD was significantly reduced. Correlation of disentangled SPARE-AD was non-inferior to the molecular measurements and to the number of APOE4 alleles, but was less to AD-related psychometric test scores, suggesting contribution of advanced brain aging to these scores. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.03723v1-abstract-full').style.display = 'none'; document.getElementById('2109.03723v1-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">4 figures, 3 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/2109.01304">arXiv:2109.01304</a> <span> [<a href="https://arxiv.org/pdf/2109.01304">pdf</a>, <a href="https://arxiv.org/format/2109.01304">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Aimard%2C+B">B. Aimard</a>, <a href="/search/physics?searchtype=author&query=Ali-Mohammadzadeh%2C+B">B. Ali-Mohammadzadeh</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=AlRashed%2C+M">M. AlRashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a> , et al. (1132 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2109.01304v1-abstract-short" style="display: inline;"> The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE's sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-years (kt-MW-yr). The analysis includes detailed uncertainties on t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01304v1-abstract-full').style.display = 'inline'; document.getElementById('2109.01304v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01304v1-abstract-full" style="display: none;"> The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE's sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-years (kt-MW-yr). The analysis includes detailed uncertainties on the flux prediction, the neutrino interaction model, and detector effects. We demonstrate that DUNE will be able to unambiguously resolve the neutrino mass ordering at a 3$蟽$ (5$蟽$) level, with a 66 (100) kt-MW-yr far detector exposure, and has the ability to make strong statements at significantly shorter exposures depending on the true value of other oscillation parameters. We also show that DUNE has the potential to make a robust measurement of CPV at a 3$蟽$ level with a 100 kt-MW-yr exposure for the maximally CP-violating values $未_{\rm CP}} = \pm蟺/2$. Additionally, the dependence of DUNE's sensitivity on the exposure taken in neutrino-enhanced and antineutrino-enhanced running is discussed. An equal fraction of exposure taken in each beam mode is found to be close to optimal when considered over the entire space of interest. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01304v1-abstract-full').style.display = 'none'; document.getElementById('2109.01304v1-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-391-ND </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2108.01902">arXiv:2108.01902</a> <span> [<a href="https://arxiv.org/pdf/2108.01902">pdf</a>, <a href="https://arxiv.org/format/2108.01902">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"> Design, construction and operation of the ProtoDUNE-SP Liquid Argon TPC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adames%2C+M+R">M. R. Adames</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J">J. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Ali-Mohammadzadeh%2C+B">B. Ali-Mohammadzadeh</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Allison%2C+K">K. Allison</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andreotti%2C+M">M. Andreotti</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a> , et al. (1158 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2108.01902v3-abstract-short" style="display: inline;"> The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. This detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment (DUNE), which will be constructed at the Sandford Underground Research Facility (SURF) in Lead, South Dakota, USA.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.01902v3-abstract-full').style.display = 'inline'; document.getElementById('2108.01902v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2108.01902v3-abstract-full" style="display: none;"> The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. This detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment (DUNE), which will be constructed at the Sandford Underground Research Facility (SURF) in Lead, South Dakota, USA. The ProtoDUNE-SP detector incorporates full-size components as designed for DUNE and has an active volume of $7\times 6\times 7.2$~m$^3$. The H4 beam delivers incident particles with well-measured momenta and high-purity particle identification. ProtoDUNE-SP's successful operation between 2018 and 2020 demonstrates the effectiveness of the single-phase far detector design. This paper describes the design, construction, assembly and operation of the detector components. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2108.01902v3-abstract-full').style.display = 'none'; document.getElementById('2108.01902v3-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 September, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2106.01542">arXiv:2106.01542</a> <span> [<a href="https://arxiv.org/pdf/2106.01542">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Medical Physics">physics.med-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> </div> <p class="title is-5 mathjax"> Cosmic ray radiography of a human phantom </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Morris%2C+C">Christopher Morris</a>, <a href="/search/physics?searchtype=author&query=Perry%2C+J">John Perry</a>, <a href="/search/physics?searchtype=author&query=Merrill%2C+F+E">F. E. Merrill</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="2106.01542v1-abstract-short" style="display: inline;"> Cosmic ray muons, that reach the earth's surface, provide a natural source of radiation that is used for radiography. In this paper, we show that radiography using cosmic radiation background provides a method that can be used to monitor bulk aspects of human anatomy. We describe a method that can be used to measure changes in patients as a function of time by radiographing them using cosmic-ray m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.01542v1-abstract-full').style.display = 'inline'; document.getElementById('2106.01542v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2106.01542v1-abstract-full" style="display: none;"> Cosmic ray muons, that reach the earth's surface, provide a natural source of radiation that is used for radiography. In this paper, we show that radiography using cosmic radiation background provides a method that can be used to monitor bulk aspects of human anatomy. We describe a method that can be used to measure changes in patients as a function of time by radiographing them using cosmic-ray muons. This could provide hourly readouts of parameters such as lung density with sufficient sensitivity to detect time changes in inflammation of the lungs in, e.g., Covid patients. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2106.01542v1-abstract-full').style.display = 'none'; document.getElementById('2106.01542v1-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 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">Report number:</span> LA-UR-21-24872 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.13910">arXiv:2103.13910</a> <span> [<a href="https://arxiv.org/pdf/2103.13910">pdf</a>, <a href="https://arxiv.org/format/2103.13910">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"> Deep Underground Neutrino Experiment (DUNE) Near Detector Conceptual Design Report </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Aduszkiewicz%2C+A">A. Aduszkiewicz</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Alton%2C+A">A. Alton</a>, <a href="/search/physics?searchtype=author&query=Amedo%2C+P">P. Amedo</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Anfimov%2C+N">N. Anfimov</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a> , et al. (1041 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.13910v1-abstract-short" style="display: inline;"> This report describes the conceptual design of the DUNE near detector </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.13910v1-abstract-full" style="display: none;"> This report describes the conceptual design of the DUNE near detector <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.13910v1-abstract-full').style.display = 'none'; document.getElementById('2103.13910v1-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 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">314 pages, 185 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-067-E-LBNF-PPD-SCD-T </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.13517">arXiv:2009.13517</a> <span> [<a href="https://arxiv.org/pdf/2009.13517">pdf</a>, <a href="https://arxiv.org/format/2009.13517">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="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/10.1063/5.0030972">10.1063/5.0030972 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Ultracold Neutron Properties of the Eljen-299-02D deuterated scintillator </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Tang%2C+Z">Z. Tang</a>, <a href="/search/physics?searchtype=author&query=Watkins%2C+E+B">E. B. Watkins</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S+A">S. A. Currie</a>, <a href="/search/physics?searchtype=author&query=Fellers%2C+D+E">D. E. Fellers</a>, <a href="/search/physics?searchtype=author&query=Hassan%2C+M+T">Md. T. Hassan</a>, <a href="/search/physics?searchtype=author&query=Hooks%2C+D+E">D. E. Hooks</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Lawrence%2C+S+K">S. K. Lawrence</a>, <a href="/search/physics?searchtype=author&query=MacDonald%2C+S+W+T">S. W. T. MacDonald</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Neukirch%2C+L+P">L. P. Neukirch</a>, <a href="/search/physics?searchtype=author&query=Saunders%2C+A">A. Saunders</a>, <a href="/search/physics?searchtype=author&query=O%27Shaughnessy%2C+C+M">C. M. O'Shaughnessy</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+J+H">J. H. Choi</a>, <a href="/search/physics?searchtype=author&query=Young%2C+A+R">A. R. Young</a>, <a href="/search/physics?searchtype=author&query=Zeck%2C+B+A">B. A. Zeck</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+F">F. Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+Y">C. Y. Liu</a>, <a href="/search/physics?searchtype=author&query=Floyd%2C+N+C">N. C. Floyd</a>, <a href="/search/physics?searchtype=author&query=Hickerson%2C+K+P">K. P. Hickerson</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Johnson%2C+B+A">B. A. Johnson</a> , et al. (2 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="2009.13517v1-abstract-short" style="display: inline;"> In this paper we report studies of the Fermi potential and loss per bounce of ultracold neutron (UCN) on a deuterated scintillator (Eljen-299-02D). These UCN properties of the scintillator enables a wide variety of applications in fundamental neutron research. </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.13517v1-abstract-full" style="display: none;"> In this paper we report studies of the Fermi potential and loss per bounce of ultracold neutron (UCN) on a deuterated scintillator (Eljen-299-02D). These UCN properties of the scintillator enables a wide variety of applications in fundamental neutron research. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.13517v1-abstract-full').style.display = 'none'; document.getElementById('2009.13517v1-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">6 pages, 6 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.07900">arXiv:2009.07900</a> <span> [<a href="https://arxiv.org/pdf/2009.07900">pdf</a>, <a href="https://arxiv.org/format/2009.07900">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="Quantum Physics">quant-ph</span> </div> </div> <p class="title is-5 mathjax"> Strong scattering and parallel guiding of ultracold neutrons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Zhehui Wang</a>, <a href="/search/physics?searchtype=author&query=Demarteau%2C+M">Marcel Demarteau</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Shih%2C+Y">Yanhua Shih</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="2009.07900v1-abstract-short" style="display: inline;"> For ultracold neutrons with a kinetic energy below 10 neV, strong scattering, characterized by $2蟺l_{c} / 位\leq 1$, can be obtained in metamaterials of C and $^7$Li. Here $l_{c}$ and $位$ are the coherent scattering mean free path and the neutron wavelength, respectively. UCN interferometry and high-resolution spectroscopy (nano-electronvolt to pico-electronvolt resolution) in parallel waveguide ar… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.07900v1-abstract-full').style.display = 'inline'; document.getElementById('2009.07900v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.07900v1-abstract-full" style="display: none;"> For ultracold neutrons with a kinetic energy below 10 neV, strong scattering, characterized by $2蟺l_{c} / 位\leq 1$, can be obtained in metamaterials of C and $^7$Li. Here $l_{c}$ and $位$ are the coherent scattering mean free path and the neutron wavelength, respectively. UCN interferometry and high-resolution spectroscopy (nano-electronvolt to pico-electronvolt resolution) in parallel waveguide arrays of neutronic metamaterials are given as examples of new experimental possibilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.07900v1-abstract-full').style.display = 'none'; document.getElementById('2009.07900v1-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, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">6 pages, 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Los Alamos National Laboratory Report number LA-UR-20-27262 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.06647">arXiv:2008.06647</a> <span> [<a href="https://arxiv.org/pdf/2008.06647">pdf</a>, <a href="https://arxiv.org/format/2008.06647">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 Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Solar and Stellar Astrophysics">astro-ph.SR</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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/10.1140/epjc/s10052-021-09166-w">10.1140/epjc/s10052-021-09166-w <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Supernova Neutrino Burst Detection with the Deep Underground Neutrino Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+collaboration"> DUNE collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Aranda-Fernandez%2C+A">A. Aranda-Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (949 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="2008.06647v3-abstract-short" style="display: inline;"> The Deep Underground Neutrino Experiment (DUNE), a 40-kton underground liquid argon time projection chamber experiment, will be sensitive to the electron-neutrino flavor component of the burst of neutrinos expected from the next Galactic core-collapse supernova. Such an observation will bring unique insight into the astrophysics of core collapse as well as into the properties of neutrinos. The gen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.06647v3-abstract-full').style.display = 'inline'; document.getElementById('2008.06647v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.06647v3-abstract-full" style="display: none;"> The Deep Underground Neutrino Experiment (DUNE), a 40-kton underground liquid argon time projection chamber experiment, will be sensitive to the electron-neutrino flavor component of the burst of neutrinos expected from the next Galactic core-collapse supernova. Such an observation will bring unique insight into the astrophysics of core collapse as well as into the properties of neutrinos. The general capabilities of DUNE for neutrino detection in the relevant few- to few-tens-of-MeV neutrino energy range will be described. As an example, DUNE's ability to constrain the $谓_e$ spectral parameters of the neutrino burst will be considered. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.06647v3-abstract-full').style.display = 'none'; document.getElementById('2008.06647v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">29 pages, 17 figures; paper based on DUNE Technical Design Report. arXiv admin note: substantial text overlap with arXiv:2002.03005</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-380-LBNF </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.06722">arXiv:2007.06722</a> <span> [<a href="https://arxiv.org/pdf/2007.06722">pdf</a>, <a href="https://arxiv.org/format/2007.06722">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/12/P12004">10.1088/1748-0221/15/12/P12004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First results on ProtoDUNE-SP liquid argon time projection chamber performance from a beam test at the CERN Neutrino Platform </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Abud%2C+A+A">A. Abed Abud</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adrien%2C+P">P. Adrien</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Aranda-Fernandez%2C+A">A. Aranda-Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a> , et al. (970 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="2007.06722v4-abstract-short" style="display: inline;"> The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber with an active volume of $7.2\times 6.0\times 6.9$ m$^3$. It is installed at the CERN Neutrino Platform in a specially-constructed beam that delivers charged pions, kaons, protons, muons and electrons with momenta in the range 0.3 GeV$/c$ to 7 GeV/$c$. Beam line instrumentation provides accurate momentum measurements… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.06722v4-abstract-full').style.display = 'inline'; document.getElementById('2007.06722v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.06722v4-abstract-full" style="display: none;"> The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber with an active volume of $7.2\times 6.0\times 6.9$ m$^3$. It is installed at the CERN Neutrino Platform in a specially-constructed beam that delivers charged pions, kaons, protons, muons and electrons with momenta in the range 0.3 GeV$/c$ to 7 GeV/$c$. Beam line instrumentation provides accurate momentum measurements and particle identification. The ProtoDUNE-SP detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment, and it incorporates full-size components as designed for that module. This paper describes the beam line, the time projection chamber, the photon detectors, the cosmic-ray tagger, the signal processing and particle reconstruction. It presents the first results on ProtoDUNE-SP's performance, including noise and gain measurements, $dE/dx$ calibration for muons, protons, pions and electrons, drift electron lifetime measurements, and photon detector noise, signal sensitivity and time resolution measurements. The measured values meet or exceed the specifications for the DUNE far detector, in several cases by large margins. ProtoDUNE-SP's successful operation starting in 2018 and its production of large samples of high-quality data demonstrate the effectiveness of the single-phase far detector design. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.06722v4-abstract-full').style.display = 'none'; document.getElementById('2007.06722v4-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 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 13 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">93 pages, 70 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-059-AD-ESH-LBNF-ND-SCD, CERN-EP-2020-125 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 15 (2020) P12004 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2006.15052">arXiv:2006.15052</a> <span> [<a href="https://arxiv.org/pdf/2006.15052">pdf</a>, <a href="https://arxiv.org/format/2006.15052">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/10.1103/PhysRevD.102.092003">10.1103/PhysRevD.102.092003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Neutrino interaction classification with a convolutional neural network in the DUNE far detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Aranda-Fernandez%2C+A">A. Aranda-Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (951 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="2006.15052v2-abstract-short" style="display: inline;"> The Deep Underground Neutrino Experiment is a next-generation neutrino oscillation experiment that aims to measure $CP$-violation in the neutrino sector as part of a wider physics program. A deep learning approach based on a convolutional neural network has been developed to provide highly efficient and pure selections of electron neutrino and muon neutrino charged-current interactions. The electr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15052v2-abstract-full').style.display = 'inline'; document.getElementById('2006.15052v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2006.15052v2-abstract-full" style="display: none;"> The Deep Underground Neutrino Experiment is a next-generation neutrino oscillation experiment that aims to measure $CP$-violation in the neutrino sector as part of a wider physics program. A deep learning approach based on a convolutional neural network has been developed to provide highly efficient and pure selections of electron neutrino and muon neutrino charged-current interactions. The electron neutrino (antineutrino) selection efficiency peaks at 90% (94%) and exceeds 85% (90%) for reconstructed neutrino energies between 2-5 GeV. The muon neutrino (antineutrino) event selection is found to have a maximum efficiency of 96% (97%) and exceeds 90% (95%) efficiency for reconstructed neutrino energies above 2 GeV. When considering all electron neutrino and antineutrino interactions as signal, a selection purity of 90% is achieved. These event selections are critical to maximize the sensitivity of the experiment to $CP$-violating effects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2006.15052v2-abstract-full').style.display = 'none'; document.getElementById('2006.15052v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 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">39 pages, 11 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 102, 092003 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.03010">arXiv:2002.03010</a> <span> [<a href="https://arxiv.org/pdf/2002.03010">pdf</a>, <a href="https://arxiv.org/format/2002.03010">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"> Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume IV: Far Detector Single-phase Technology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">Mario A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+A+A">A. Aranda Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (941 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="2002.03010v3-abstract-short" style="display: inline;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. DUNE is an international world-clas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03010v3-abstract-full').style.display = 'inline'; document.getElementById('2002.03010v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.03010v3-abstract-full" style="display: none;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. DUNE is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. Central to achieving DUNE's physics program is a far detector that combines the many tens-of-kiloton fiducial mass necessary for rare event searches with sub-centimeter spatial resolution in its ability to image those events, allowing identification of the physics signatures among the numerous backgrounds. In the single-phase liquid argon time-projection chamber (LArTPC) technology, ionization charges drift horizontally in the liquid argon under the influence of an electric field towards a vertical anode, where they are read out with fine granularity. A photon detection system supplements the TPC, directly enhancing physics capabilities for all three DUNE physics drivers and opening up prospects for further physics explorations. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. Volume IV presents an overview of the basic operating principles of a single-phase LArTPC, followed by a description of the DUNE implementation. Each of the subsystems is described in detail, connecting the high-level design requirements and decisions to the overriding physics goals of DUNE. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03010v3-abstract-full').style.display = 'none'; document.getElementById('2002.03010v3-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">Minor corrections made for JINST submission, 673 pages, 312 figures (corrected errors in author list)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-027-ND </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.03008">arXiv:2002.03008</a> <span> [<a href="https://arxiv.org/pdf/2002.03008">pdf</a>, <a href="https://arxiv.org/format/2002.03008">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"> Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume III: DUNE Far Detector Technical Coordination </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">Mario A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+A+A">A. Aranda Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (941 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="2002.03008v3-abstract-short" style="display: inline;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Exper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03008v3-abstract-full').style.display = 'inline'; document.getElementById('2002.03008v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.03008v3-abstract-full" style="display: none;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Experiment (DUNE) is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. Volume III of this TDR describes how the activities required to design, construct, fabricate, install, and commission the DUNE far detector modules are organized and managed. This volume details the organizational structures that will carry out and/or oversee the planned far detector activities safely, successfully, on time, and on budget. It presents overviews of the facilities, supporting infrastructure, and detectors for context, and it outlines the project-related functions and methodologies used by the DUNE technical coordination organization, focusing on the areas of integration engineering, technical reviews, quality assurance and control, and safety oversight. Because of its more advanced stage of development, functional examples presented in this volume focus primarily on the single-phase (SP) detector module. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03008v3-abstract-full').style.display = 'none'; document.getElementById('2002.03008v3-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">Minor corrections made for JINST submission, 209 pages, 55 figures (updated typos in Table A.5; corrected errors in author list)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-026-ND </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.03005">arXiv:2002.03005</a> <span> [<a href="https://arxiv.org/pdf/2002.03005">pdf</a>, <a href="https://arxiv.org/format/2002.03005">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">Mario A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+A+A">A. Aranda Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (941 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="2002.03005v2-abstract-short" style="display: inline;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. DUNE is an international world-clas… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03005v2-abstract-full').style.display = 'inline'; document.getElementById('2002.03005v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.03005v2-abstract-full" style="display: none;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. DUNE is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. Volume II of this TDR, DUNE Physics, describes the array of identified scientific opportunities and key goals. Crucially, we also report our best current understanding of the capability of DUNE to realize these goals, along with the detailed arguments and investigations on which this understanding is based. This TDR volume documents the scientific basis underlying the conception and design of the LBNF/DUNE experimental configurations. As a result, the description of DUNE's experimental capabilities constitutes the bulk of the document. Key linkages between requirements for successful execution of the physics program and primary specifications of the experimental configurations are drawn and summarized. This document also serves a wider purpose as a statement on the scientific potential of DUNE as a central component within a global program of frontier theoretical and experimental particle physics research. Thus, the presentation also aims to serve as a resource for the particle physics community at large. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.03005v2-abstract-full').style.display = 'none'; document.getElementById('2002.03005v2-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 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">357 pages, 165 figures (updated typos in Table 6.1 and corrected errors in author list)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-025-ND </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.02967">arXiv:2002.02967</a> <span> [<a href="https://arxiv.org/pdf/2002.02967">pdf</a>, <a href="https://arxiv.org/format/2002.02967">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"> Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume I: Introduction to DUNE </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">Mario A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamov%2C+G">G. Adamov</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Ahmed%2C+J">J. Ahmed</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrianala%2C+F">F. Andrianala</a>, <a href="/search/physics?searchtype=author&query=Andringa%2C+S">S. Andringa</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a>, <a href="/search/physics?searchtype=author&query=Antusch%2C+S">S. Antusch</a>, <a href="/search/physics?searchtype=author&query=Fernandez%2C+A+A">A. Aranda Fernandez</a>, <a href="/search/physics?searchtype=author&query=Ariga%2C+A">A. Ariga</a>, <a href="/search/physics?searchtype=author&query=Arnold%2C+L+O">L. O. Arnold</a>, <a href="/search/physics?searchtype=author&query=Arroyave%2C+M+A">M. A. Arroyave</a>, <a href="/search/physics?searchtype=author&query=Asaadi%2C+J">J. Asaadi</a> , et al. (941 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="2002.02967v3-abstract-short" style="display: inline;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Exper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.02967v3-abstract-full').style.display = 'inline'; document.getElementById('2002.02967v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.02967v3-abstract-full" style="display: none;"> The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Experiment (DUNE) is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. This TDR is intended to justify the technical choices for the far detector that flow down from the high-level physics goals through requirements at all levels of the Project. Volume I contains an executive summary that introduces the DUNE science program, the far detector and the strategy for its modular designs, and the organization and management of the Project. The remainder of Volume I provides more detail on the science program that drives the choice of detector technologies and on the technologies themselves. It also introduces the designs for the DUNE near detector and the DUNE computing model, for which DUNE is planning design reports. Volume II of this TDR describes DUNE's physics program in detail. Volume III describes the technical coordination required for the far detector design, construction, installation, and integration, and its organizational structure. Volume IV describes the single-phase far detector technology. A planned Volume V will describe the dual-phase technology. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.02967v3-abstract-full').style.display = 'none'; document.getElementById('2002.02967v3-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 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">Minor corrections made for JINST submission; 244 pages, 114 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-20-024-ND </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2002.01782">arXiv:2002.01782</a> <span> [<a href="https://arxiv.org/pdf/2002.01782">pdf</a>, <a href="https://arxiv.org/format/2002.01782">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/06/P06017">10.1088/1748-0221/15/06/P06017 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The ProtoDUNE-SP LArTPC Electronics Production, Commissioning, and Performance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Bass%2C+M">M. Bass</a>, <a href="/search/physics?searchtype=author&query=Bishai%2C+M">M. Bishai</a>, <a href="/search/physics?searchtype=author&query=Bromberg%2C+C">C. Bromberg</a>, <a href="/search/physics?searchtype=author&query=Calcutt%2C+J">J. Calcutt</a>, <a href="/search/physics?searchtype=author&query=Chen%2C+H">H. Chen</a>, <a href="/search/physics?searchtype=author&query=Fried%2C+J">J. Fried</a>, <a href="/search/physics?searchtype=author&query=Furic%2C+I">I. Furic</a>, <a href="/search/physics?searchtype=author&query=Gao%2C+S">S. Gao</a>, <a href="/search/physics?searchtype=author&query=Gastler%2C+D">D. Gastler</a>, <a href="/search/physics?searchtype=author&query=Hugon%2C+J">J. Hugon</a>, <a href="/search/physics?searchtype=author&query=Joshi%2C+J">J. Joshi</a>, <a href="/search/physics?searchtype=author&query=Kirby%2C+B">B. Kirby</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+F">F. Liu</a>, <a href="/search/physics?searchtype=author&query=Mahn%2C+K">K. Mahn</a>, <a href="/search/physics?searchtype=author&query=Mooney%2C+M">M. Mooney</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C">C. Morris</a>, <a href="/search/physics?searchtype=author&query=Pereyra%2C+C">C. Pereyra</a>, <a href="/search/physics?searchtype=author&query=Pons%2C+X">X. Pons</a>, <a href="/search/physics?searchtype=author&query=Radeka%2C+V">V. Radeka</a>, <a href="/search/physics?searchtype=author&query=Raguzin%2C+E">E. Raguzin</a>, <a href="/search/physics?searchtype=author&query=Shooltz%2C+D">D. Shooltz</a>, <a href="/search/physics?searchtype=author&query=Spanu%2C+M">M. Spanu</a>, <a href="/search/physics?searchtype=author&query=Timilsina%2C+A">A. Timilsina</a>, <a href="/search/physics?searchtype=author&query=Tufanli%2C+S">S. Tufanli</a> , et al. (9 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2002.01782v4-abstract-short" style="display: inline;"> The ProtoDUNE-SP detector is a large-scale prototype of the Single-Phase (SP) Liquid Argon Time Projection Chamber (LArTPC) design proposed for the Deep Underground Neutrino Experiment (DUNE). 15,360 LArTPC wires are instrumented with low electronic noise pre-amplifier and digitization ASICs integrated into Front End Motherboards (FEMBs) operating at cryogenic temperature within the cryostat. The… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.01782v4-abstract-full').style.display = 'inline'; document.getElementById('2002.01782v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2002.01782v4-abstract-full" style="display: none;"> The ProtoDUNE-SP detector is a large-scale prototype of the Single-Phase (SP) Liquid Argon Time Projection Chamber (LArTPC) design proposed for the Deep Underground Neutrino Experiment (DUNE). 15,360 LArTPC wires are instrumented with low electronic noise pre-amplifier and digitization ASICs integrated into Front End Motherboards (FEMBs) operating at cryogenic temperature within the cryostat. The large number of electronics channels and high performance specifications required a large-scale production electronics quality control effort, careful installation into Anode Plane Assemblies (APAs), and rigorous detector commissioning. This successful collaboration-wide effort achieved a working LArTPC electronics channel percentage of 99.7% (15,318 of 15,360 channels in total), whose operating performance exceeded expectations. We summarize the ProtoDUNE-SP cold electronics design and quality control, installation, and commissioning efforts that enabled this excellent electronics performance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2002.01782v4-abstract-full').style.display = 'none'; document.getElementById('2002.01782v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 30 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.09459">arXiv:1905.09459</a> <span> [<a href="https://arxiv.org/pdf/1905.09459">pdf</a>, <a href="https://arxiv.org/format/1905.09459">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="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.5109879">10.1063/1.5109879 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A next-generation inverse-geometry spallation-driven ultracold neutron source </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Leung%2C+K+K+H">K. K. H. Leung</a>, <a href="/search/physics?searchtype=author&query=Muhrer%2C+G">G. Muhrer</a>, <a href="/search/physics?searchtype=author&query=H%C3%BCgle%2C+T">T. H眉gle</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Lutz%2C+E+M">E. M. Lutz</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C%2C+R+W">R. W. Pattie, Jr.</a>, <a href="/search/physics?searchtype=author&query=Saunders%2C+A">A. Saunders</a>, <a href="/search/physics?searchtype=author&query=Young%2C+A+R">A. R. Young</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="1905.09459v2-abstract-short" style="display: inline;"> The physics model of a next-generation spallation-driven high-current ultracold neutron (UCN) source capable of delivering an extracted UCN rate of around an-order-of-magnitude higher than the strongest proposed sources, and around three-orders-of-magnitude higher than existing sources, is presented. This UCN-current-optimized source would dramatically improve cutting-edge UCN measurements that ar… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.09459v2-abstract-full').style.display = 'inline'; document.getElementById('1905.09459v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.09459v2-abstract-full" style="display: none;"> The physics model of a next-generation spallation-driven high-current ultracold neutron (UCN) source capable of delivering an extracted UCN rate of around an-order-of-magnitude higher than the strongest proposed sources, and around three-orders-of-magnitude higher than existing sources, is presented. This UCN-current-optimized source would dramatically improve cutting-edge UCN measurements that are currently statistically limited. A novel "Inverse Geometry" design is used with 40 L of superfluid $^4$He (He-II), which acts as a converter of cold neutrons (CNs) to UCNs, cooled with state-of-the-art sub-cooled cryogenic technology to $\sim$1.6 K. Our design is optimized for a 100 W maximum heat load constraint on the He-II and its vessel. In our geometry, the spallation target is wrapped symmetrically around the UCN converter to permit raster scanning the proton beam over a relatively large volume of tungsten spallation target to reduce the demand on the cooling requirements, which makes it reasonable to assume that water edge-cooling only is sufficient. Our design is refined in several steps to reach $P_{UCN}=2.1\times10^9\,/$s under our other restriction of 1 MW maximum available proton beam power. We then study effects of the He-II scattering kernel as well as reductions in $P_{UCN}$ due to pressurization to reach $P_{UCN}=1.8\times10^9\,/$s. Finally, we provide a design for the UCN extraction system that takes into account the required He-II heat transport properties and implementation of a He-II containment foil that allows UCN transmission. We estimate a total useful UCN current from our source of $R_{use}=5\times10^8\,/$s from a 18 cm diameter guide 5 m from the source. Under a conservative "no return" approximation, this rate can produce an extracted density of $>1\times10^4\,/$cm$^3$ in $<$1000~L external experimental volumes with a $^{58}$Ni (335 neV) cut-off potential. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.09459v2-abstract-full').style.display = 'none'; document.getElementById('1905.09459v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 October, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 May, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">Submitted to Journal of Applied Physics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1905.03861">arXiv:1905.03861</a> <span> [<a href="https://arxiv.org/pdf/1905.03861">pdf</a>, <a href="https://arxiv.org/format/1905.03861">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Verifying Spent Fuel Containers Before Deep Geological Storage with Cosmic Ray Muons </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Poulson%2C+D">D. Poulson</a>, <a href="/search/physics?searchtype=author&query=Durham%2C+J+M">J. M. Durham</a>, <a href="/search/physics?searchtype=author&query=Bacon%2C+J+D">J. D. Bacon</a>, <a href="/search/physics?searchtype=author&query=Guardincerri%2C+E">E. Guardincerri</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</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="1905.03861v1-abstract-short" style="display: inline;"> International nuclear safeguards inspectors do not have a method to verify the contents of sealed storage casks containing spent reactor fuel. The heavy shielding that is used to limit radiation emission attenuates and scatters photons and neutrons emitted by the fuel, and thereby hinders inspection with these probes. This problem is especially pressing given the policy decisions of several nation… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.03861v1-abstract-full').style.display = 'inline'; document.getElementById('1905.03861v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1905.03861v1-abstract-full" style="display: none;"> International nuclear safeguards inspectors do not have a method to verify the contents of sealed storage casks containing spent reactor fuel. The heavy shielding that is used to limit radiation emission attenuates and scatters photons and neutrons emitted by the fuel, and thereby hinders inspection with these probes. This problem is especially pressing given the policy decisions of several nations to begin permanent disposal of spent fuel in deep geological repositories. Radiography with cosmic-ray muons provides a potential solution, as muons are able to penetrate the cask and fuel and provide information on the cask contents. Here we show in simulation that muon scattering radiography can be used to inspect the contents of sealed geological storage casks, and can discern between a variety of plausible diversion scenarios. This technique can be applied immediately prior to permanent interment in a geological repository, giving inspectors a final opportunity to verify State declarations of spent fuel disposal. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1905.03861v1-abstract-full').style.display = 'none'; document.getElementById('1905.03861v1-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/1904.05432">arXiv:1904.05432</a> <span> [<a href="https://arxiv.org/pdf/1904.05432">pdf</a>, <a href="https://arxiv.org/format/1904.05432">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/10.1051/epjconf/201921904004">10.1051/epjconf/201921904004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Final results for the neutron $尾$-asymmetry parameter $A_0$ from the UCNA experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Plaster%2C+B">B. Plaster</a>, <a href="/search/physics?searchtype=author&query=Adamek%2C+E">E. Adamek</a>, <a href="/search/physics?searchtype=author&query=Allgeier%2C+B">B. Allgeier</a>, <a href="/search/physics?searchtype=author&query=Anaya%2C+J">J. Anaya</a>, <a href="/search/physics?searchtype=author&query=Back%2C+H+O">H. O. Back</a>, <a href="/search/physics?searchtype=author&query=Bagdasarova%2C+Y">Y. Bagdasarova</a>, <a href="/search/physics?searchtype=author&query=Berguno%2C+D+B">D. B. Berguno</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Boissevain%2C+J+G">J. G. Boissevain</a>, <a href="/search/physics?searchtype=author&query=Bowles%2C+T+J">T. J. Bowles</a>, <a href="/search/physics?searchtype=author&query=Broussard%2C+L+J">L. J. Broussard</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+M+A+-">M. A. -P. Brown</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+D+J">D. J. Clark</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S">S. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S">S. Currie</a>, <a href="/search/physics?searchtype=author&query=Dees%2C+E+B">E. B. Dees</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+X">X. Ding</a>, <a href="/search/physics?searchtype=author&query=Du%2C+S">S. Du</a>, <a href="/search/physics?searchtype=author&query=Filippone%2C+B+W">B. W. Filippone</a>, <a href="/search/physics?searchtype=author&query=Garcia%2C+A">A. Garcia</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=Hasan%2C+S">S. Hasan</a>, <a href="/search/physics?searchtype=author&query=Hawari%2C+A">A. Hawari</a> , et al. (69 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="1904.05432v1-abstract-short" style="display: inline;"> The UCNA experiment was designed to measure the neutron $尾$-asymmetry parameter $A_0$ using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then directed to a 1 T solenoidal electron spectrometer, where the decay electrons were detected in electron detector packages located on the two ends of the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.05432v1-abstract-full').style.display = 'inline'; document.getElementById('1904.05432v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1904.05432v1-abstract-full" style="display: none;"> The UCNA experiment was designed to measure the neutron $尾$-asymmetry parameter $A_0$ using polarized ultracold neutrons (UCN). UCN produced via downscattering in solid deuterium were polarized via transport through a 7 T magnetic field, and then directed to a 1 T solenoidal electron spectrometer, where the decay electrons were detected in electron detector packages located on the two ends of the spectrometer. A value for $A_0$ was then extracted from the asymmetry in the numbers of counts in the two detector packages. We summarize all of the results from the UCNA experiment, obtained during run periods in 2007, 2008--2009, 2010, and 2011--2013, which ultimately culminated in a 0.67\% precision result for $A_0$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1904.05432v1-abstract-full').style.display = 'none'; document.getElementById('1904.05432v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 April, 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">6 pages, 7 figures, to appear in proceedings of the International Workshop on Particle Physics at Neutron Sources 2018</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1903.01335">arXiv:1903.01335</a> <span> [<a href="https://arxiv.org/pdf/1903.01335">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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.2021.165306">10.1016/j.nima.2021.165306 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A boron-coated CCD camera for direct detection of Ultracold Neutrons (UCN) </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kuk%2C+K">K. Kuk</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Chavez%2C+C+R">C. R. Chavez</a>, <a href="/search/physics?searchtype=author&query=Choi%2C+J+H">J. H. Choi</a>, <a href="/search/physics?searchtype=author&query=Estrada%2C+J">J. Estrada</a>, <a href="/search/physics?searchtype=author&query=Hoffbauer%2C+M">M. Hoffbauer</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Merkel%2C+P">P. Merkel</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Ramberg%2C+E">E. Ramberg</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Z">Z. Wang</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+T">T. Bailey</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Adamek%2C+E+R">E. R. Adamek</a>, <a href="/search/physics?searchtype=author&query=Broussard%2C+L+J">L. J. Broussard</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+M+A+-">M. A. -P. Brown</a>, <a href="/search/physics?searchtype=author&query=Callahan%2C+N+B">N. B. Callahan</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S+A">S. A. Currie</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+X">X. Ding</a>, <a href="/search/physics?searchtype=author&query=Dinger%2C+D">D. Dinger</a>, <a href="/search/physics?searchtype=author&query=Filippone%2C+B">B. Filippone</a>, <a href="/search/physics?searchtype=author&query=Fries%2C+E+M">E. M. Fries</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=George%2C+E">E. George</a> , et al. (26 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="1903.01335v1-abstract-short" style="display: inline;"> A new boron-coated CCD camera is described for direct detection of ultracold neutrons (UCN) through the capture reactions $^{10}$B (n,$伪$0$纬$)$^7$Li (6%) and $^{10}$B(n,$伪$1$纬$)$^7$Li (94%). The experiments, which extend earlier works using a boron-coated ZnS:Ag scintillator, are based on direct detections of the neutron-capture byproducts in silicon. The high position resolution, energy resolutio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.01335v1-abstract-full').style.display = 'inline'; document.getElementById('1903.01335v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1903.01335v1-abstract-full" style="display: none;"> A new boron-coated CCD camera is described for direct detection of ultracold neutrons (UCN) through the capture reactions $^{10}$B (n,$伪$0$纬$)$^7$Li (6%) and $^{10}$B(n,$伪$1$纬$)$^7$Li (94%). The experiments, which extend earlier works using a boron-coated ZnS:Ag scintillator, are based on direct detections of the neutron-capture byproducts in silicon. The high position resolution, energy resolution and particle ID performance of a scientific CCD allows for observation and identification of all the byproducts $伪$, $^7$Li and $纬$ (electron recoils). A signal-to-noise improvement on the order of 10$^4$ over the indirect method has been achieved. Sub-pixel position resolution of a few microns is demonstrated. The technology can also be used to build UCN detectors with an area on the order of 1 m$^2$. The combination of micrometer scale spatial resolution, few electrons ionization thresholds and large area paves the way to new research avenues including quantum physics of UCN and high-resolution neutron imaging and spectroscopy. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1903.01335v1-abstract-full').style.display = 'none'; document.getElementById('1903.01335v1-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, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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">10 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Los Alamos National Laboratory Report number LA-UR-19-21706 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Instruments and Methods in Physics Research Section A, Volume 1003, 1 July 2021, 165306 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1812.10003">arXiv:1812.10003</a> <span> [<a href="https://arxiv.org/pdf/1812.10003">pdf</a>, <a href="https://arxiv.org/format/1812.10003">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> </div> <p class="title is-5 mathjax"> Self-Noise modelling and acoustic scaling of an axial fan configured with rotating controlled diffusion blade </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Davoudi%2C+B">Behdad Davoudi</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+S+C">Scott C. Morris</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="1812.10003v1-abstract-short" style="display: inline;"> A semi-empirical acoustic model for self-noise was adapted to predict the sound radiated from an axial fan featuring rotating controlled diffusion blades (RCDB). Experimental data for wake velocity, mass flow rate across the fan, and fan rotational speed were obtained. These experimental data along with typical characteristics of turbulent boundary layers were used to predict the noise of the axia… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.10003v1-abstract-full').style.display = 'inline'; document.getElementById('1812.10003v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1812.10003v1-abstract-full" style="display: none;"> A semi-empirical acoustic model for self-noise was adapted to predict the sound radiated from an axial fan featuring rotating controlled diffusion blades (RCDB). Experimental data for wake velocity, mass flow rate across the fan, and fan rotational speed were obtained. These experimental data along with typical characteristics of turbulent boundary layers were used to predict the noise of the axial fan. Hot-wire wake measurements were made in the near region downstream of the fan plane. The fan noise was measured upstream of the fan. The experimentally obtained self-noise was then compared to the predictions made by the semi-empirical acoustic model. Goody's and Rozenberg's models for surface pressure spectra were used in the semi-empirical acoustic model. Rozenberg's model offered a more accurate prediction in the final fan noise spectra. The predictions were in reasonable agreement with experimental data, and the model was found to be a useful tool to reasonably estimate acoustic emissions of a fan with limited information about the velocity field in the fan wake. Different operating conditions and blade configurations were examined. For a given dimensionless operating condition, the self-noise was obtained for different rotational speeds, and the effect of the fan speed on the propagated noise was evaluated. The acoustic scaling function was experimentally obtained as a function of normalized frequency and dimensionless operating condition and it was found to be quite frequency dependent despite it is often assumed as a constant value. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1812.10003v1-abstract-full').style.display = 'none'; document.getElementById('1812.10003v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 December, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2018. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1811.05797">arXiv:1811.05797</a> <span> [<a href="https://arxiv.org/pdf/1811.05797">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Physics Education">physics.ed-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1119/1.5064562">10.1119/1.5064562 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Accurate Radar Measurements of Drag Coefficients in Free Flight </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Courtney%2C+E">Elya Courtney</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C">Collin Morris</a>, <a href="/search/physics?searchtype=author&query=Courtney%2C+M">Michael Courtney</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="1811.05797v1-abstract-short" style="display: inline;"> Undergraduate lab design balances several factors: 1) simple experiments connected with learning objectives 2) experiments sufficiently accurate for comparisons between theory and measurements without gaps when students ascribe discrepancies to confounding factors (imperfect simplifying assumptions, measurement uncertainties, and human error), and 3) experiments capturing student attention to ensu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.05797v1-abstract-full').style.display = 'inline'; document.getElementById('1811.05797v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1811.05797v1-abstract-full" style="display: none;"> Undergraduate lab design balances several factors: 1) simple experiments connected with learning objectives 2) experiments sufficiently accurate for comparisons between theory and measurements without gaps when students ascribe discrepancies to confounding factors (imperfect simplifying assumptions, measurement uncertainties, and human error), and 3) experiments capturing student attention to ensure due diligence in execution and analysis. Drag coefficient measurements are a particular challenge, though there has been some success using accurate measurements of terminal velocities. Video shows promise in several areas of kinematics, but the number of trials in a reasonable time is limited, and analysis techniques to determine drag coefficients often include numerical integration of differential equations. Here, we demonstrate a technique with potential to measure drag coefficients to near 1 percent accuracy using an affordable Doppler radar system and round plastic pellets from an Airsoft launcher. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1811.05797v1-abstract-full').style.display = 'none'; document.getElementById('1811.05797v1-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 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">4 pages</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> The Physics Teacher 56, 530 (2018); </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1810.07691">arXiv:1810.07691</a> <span> [<a href="https://arxiv.org/pdf/1810.07691">pdf</a>, <a href="https://arxiv.org/format/1810.07691">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="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/PhysRevC.100.015501">10.1103/PhysRevC.100.015501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Monte Carlo Simulations of Trapped Ultracold Neutrons in the UCN蟿 Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Callahan%2C+N">Nathan Callahan</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C">Chen-Yu Liu</a>, <a href="/search/physics?searchtype=author&query=Gonzalez%2C+F">Francisco Gonzalez</a>, <a href="/search/physics?searchtype=author&query=Adamek%2C+E">Evan Adamek</a>, <a href="/search/physics?searchtype=author&query=Bowman%2C+J+D">James David Bowman</a>, <a href="/search/physics?searchtype=author&query=Broussard%2C+L">Leah Broussard</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S">S. Currie</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Dees%2C+E+B">E. B. Dees</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+X">X. Ding</a>, <a href="/search/physics?searchtype=author&query=Egnel%2C+E+M">E. M. Egnel</a>, <a href="/search/physics?searchtype=author&query=Fellers%2C+D">D. Fellers</a>, <a href="/search/physics?searchtype=author&query=Fox%2C+W">W. Fox</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=Hickerson%2C+K+P">K. P. Hickerson</a>, <a href="/search/physics?searchtype=author&query=Hoffbauer%2C+M+A">M. A. Hoffbauer</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Komives%2C+A">A. Komives</a>, <a href="/search/physics?searchtype=author&query=MacDonald%2C+S+W+T">S. W. T. MacDonald</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Ortiz%2C+J+D">J. D. Ortiz</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C+R+W">R. W. Pattie Jr</a>, <a href="/search/physics?searchtype=author&query=Ramsey%2C+J">J. Ramsey</a> , et al. (15 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="1810.07691v1-abstract-short" style="display: inline;"> In the UCN蟿 experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material surfaces, which caused the largest correction in prior neutron experiments using material bottles. However, the neutron dynamics in field traps differ qualitatively from those in material bottles. In the latter case, neut… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1810.07691v1-abstract-full').style.display = 'inline'; document.getElementById('1810.07691v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1810.07691v1-abstract-full" style="display: none;"> In the UCN蟿 experiment, ultracold neutrons (UCN) are confined by magnetic fields and the Earth's gravitational field. Field-trapping mitigates the problem of UCN loss on material surfaces, which caused the largest correction in prior neutron experiments using material bottles. However, the neutron dynamics in field traps differ qualitatively from those in material bottles. In the latter case, neutrons bounce off material surfaces with significant diffusivity and the population quickly reaches a static spatial distribution with a density gradient induced by the gravitational potential. In contrast, the field-confined UCN -- whose dynamics can be described by Hamiltonian mechanics -- do not exhibit the stochastic behaviors typical of an ideal gas model as observed in material bottles. In this report, we will describe our efforts to simulate UCN trapping in the UCN蟿 magneto-gravitational trap. We compare the simulation output to the experimental results to determine the parameters of the neutron detector and the input neutron distribution. The tuned model is then used to understand the phase space evolution of neutrons observed in the UCN蟿 experiment. We will discuss the implications of chaotic dynamics on controlling the systematic effects, such as spectral cleaning and microphonic heating, for a successful UCN lifetime experiment to reach a 0.01% level of precision. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1810.07691v1-abstract-full').style.display = 'none'; document.getElementById('1810.07691v1-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 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">18 pages, 19 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 100, 015501 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10340">arXiv:1807.10340</a> <span> [<a href="https://arxiv.org/pdf/1807.10340">pdf</a>, <a href="https://arxiv.org/format/1807.10340">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"> The DUNE Far Detector Interim Design Report, Volume 3: Dual-Phase Module </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 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="1807.10340v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10340v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10340v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10340v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 3 describes the dual-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10340v1-abstract-full').style.display = 'none'; document.getElementById('1807.10340v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">280 pages, 109 figures. arXiv admin note: text overlap with arXiv:1807.10327</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-04 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10334">arXiv:1807.10334</a> <span> [<a href="https://arxiv.org/pdf/1807.10334">pdf</a>, <a href="https://arxiv.org/format/1807.10334">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"> The DUNE Far Detector Interim Design Report Volume 1: Physics, Technology and Strategies </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 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="1807.10334v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10334v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10334v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10334v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE Far Detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 1 contains an executive summary that describes the general aims of this document. The remainder of this first volume provides a more detailed description of the DUNE physics program that drives the choice of detector technologies. It also includes concise outlines of two overarching systems that have not yet evolved to consortium structures: computing and calibration. Volumes 2 and 3 of this IDR describe, for the single-phase and dual-phase technologies, respectively, each detector module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10334v1-abstract-full').style.display = 'none'; document.getElementById('1807.10334v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">83 pages, 11 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-02 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1807.10327">arXiv:1807.10327</a> <span> [<a href="https://arxiv.org/pdf/1807.10327">pdf</a>, <a href="https://arxiv.org/format/1807.10327">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"> The DUNE Far Detector Interim Design Report, Volume 2: Single-Phase Module </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=DUNE+Collaboration"> DUNE Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abi%2C+B">B. Abi</a>, <a href="/search/physics?searchtype=author&query=Acciarri%2C+R">R. Acciarri</a>, <a href="/search/physics?searchtype=author&query=Acero%2C+M+A">M. A. Acero</a>, <a href="/search/physics?searchtype=author&query=Adamowski%2C+M">M. Adamowski</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+C">C. Adams</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+D">D. Adams</a>, <a href="/search/physics?searchtype=author&query=Adamson%2C+P">P. Adamson</a>, <a href="/search/physics?searchtype=author&query=Adinolfi%2C+M">M. Adinolfi</a>, <a href="/search/physics?searchtype=author&query=Ahmad%2C+Z">Z. Ahmad</a>, <a href="/search/physics?searchtype=author&query=Albright%2C+C+H">C. H. Albright</a>, <a href="/search/physics?searchtype=author&query=Soplin%2C+L+A">L. Aliaga Soplin</a>, <a href="/search/physics?searchtype=author&query=Alion%2C+T">T. Alion</a>, <a href="/search/physics?searchtype=author&query=Monsalve%2C+S+A">S. Alonso Monsalve</a>, <a href="/search/physics?searchtype=author&query=Alrashed%2C+M">M. Alrashed</a>, <a href="/search/physics?searchtype=author&query=Alt%2C+C">C. Alt</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J">J. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+K">K. Anderson</a>, <a href="/search/physics?searchtype=author&query=Andreopoulos%2C+C">C. Andreopoulos</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+M+P">M. P. Andrews</a>, <a href="/search/physics?searchtype=author&query=Andrews%2C+R+A">R. A. Andrews</a>, <a href="/search/physics?searchtype=author&query=Ankowski%2C+A">A. Ankowski</a>, <a href="/search/physics?searchtype=author&query=Anthony%2C+J">J. Anthony</a>, <a href="/search/physics?searchtype=author&query=Antonello%2C+M">M. Antonello</a>, <a href="/search/physics?searchtype=author&query=Antonova%2C+M">M. Antonova</a> , et al. (1076 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="1807.10327v1-abstract-short" style="display: inline;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10327v1-abstract-full').style.display = 'inline'; document.getElementById('1807.10327v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1807.10327v1-abstract-full" style="display: none;"> The DUNE IDR describes the proposed physics program and technical designs of the DUNE far detector modules in preparation for the full TDR to be published in 2019. It is intended as an intermediate milestone on the path to a full TDR, justifying the technical choices that flow down from the high-level physics goals through requirements at all levels of the Project. These design choices will enable the DUNE experiment to make the ground-breaking discoveries that will help to answer fundamental physics questions. Volume 2 describes the single-phase module's subsystems, the technical coordination required for its design, construction, installation, and integration, and its organizational structure. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1807.10327v1-abstract-full').style.display = 'none'; document.getElementById('1807.10327v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">324 pages, 130 figures. arXiv admin note: text overlap with arXiv:1807.10340</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> Fermilab-Design-2018-03 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1804.08616">arXiv:1804.08616</a> <span> [<a href="https://arxiv.org/pdf/1804.08616">pdf</a>, <a href="https://arxiv.org/format/1804.08616">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/10.1140/epja/i2018-12594-2">10.1140/epja/i2018-12594-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Solid deuterium surface degradation at ultracold neutron sources </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Anghel%2C+A">A. Anghel</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+T+L">T. L. Bailey</a>, <a href="/search/physics?searchtype=author&query=Bison%2C+G">G. Bison</a>, <a href="/search/physics?searchtype=author&query=Blau%2C+B">B. Blau</a>, <a href="/search/physics?searchtype=author&query=Broussard%2C+L+J">L. J. Broussard</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S+M">S. M. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Daum%2C+M">M. Daum</a>, <a href="/search/physics?searchtype=author&query=Hawari%2C+A">A. Hawari</a>, <a href="/search/physics?searchtype=author&query=Hild%2C+N">N. Hild</a>, <a href="/search/physics?searchtype=author&query=Huffman%2C+P">P. Huffman</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Kirch%2C+K">K. Kirch</a>, <a href="/search/physics?searchtype=author&query=Korobkina%2C+E">E. Korobkina</a>, <a href="/search/physics?searchtype=author&query=Lauss%2C+B">B. Lauss</a>, <a href="/search/physics?searchtype=author&query=Leung%2C+K">K. Leung</a>, <a href="/search/physics?searchtype=author&query=Lutz%2C+E+M">E. M. Lutz</a>, <a href="/search/physics?searchtype=author&query=Makela%2C+M">M. Makela</a>, <a href="/search/physics?searchtype=author&query=Medlin%2C+G">G. Medlin</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C+L">C. L. Morris</a>, <a href="/search/physics?searchtype=author&query=Pattie%2C+R+W">R. W. Pattie</a>, <a href="/search/physics?searchtype=author&query=Ries%2C+D">D. Ries</a>, <a href="/search/physics?searchtype=author&query=Saunders%2C+A">A. Saunders</a>, <a href="/search/physics?searchtype=author&query=Schmidt-Wellenburg%2C+P">P. Schmidt-Wellenburg</a>, <a href="/search/physics?searchtype=author&query=Talanov%2C+V">V. Talanov</a> , et al. (5 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="1804.08616v2-abstract-short" style="display: inline;"> Solid deuterium (sD_2) is used as an efficient converter to produce ultracold neutrons (UCN). It is known that the sD_2 must be sufficiently cold, of high purity and mostly in its ortho-state in order to guarantee long lifetimes of UCN in the solid from which they are extracted into vacuum. Also the UCN transparency of the bulk sD_2 material must be high because crystal inhomogeneities limit the m… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.08616v2-abstract-full').style.display = 'inline'; document.getElementById('1804.08616v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1804.08616v2-abstract-full" style="display: none;"> Solid deuterium (sD_2) is used as an efficient converter to produce ultracold neutrons (UCN). It is known that the sD_2 must be sufficiently cold, of high purity and mostly in its ortho-state in order to guarantee long lifetimes of UCN in the solid from which they are extracted into vacuum. Also the UCN transparency of the bulk sD_2 material must be high because crystal inhomogeneities limit the mean free path for elastic scattering and reduce the extraction efficiency. Observations at the UCN sources at Paul Scherrer Institute and at Los Alamos National Laboratory consistently show a decrease of the UCN yield with time of operation after initial preparation or later treatment (`conditioning') of the sD_2. We show that, in addition to the quality of the bulk sD_2, the quality of its surface is essential. Our observations and simulations support the view that the surface is deteriorating due to a build-up of D_2 frost-layers under pulsed operation which leads to strong albedo reflections of UCN and subsequent loss. We report results of UCN yield measurements, temperature and pressure behavior of deuterium during source operation and conditioning, and UCN transport simulations. This, together with optical observations of sD_2 frost formation on initially transparent sD_2 in offline studies with pulsed heat input at the North Carolina State University UCN source results in a consistent description of the UCN yield decrease. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1804.08616v2-abstract-full').style.display = 'none'; document.getElementById('1804.08616v2-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 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">15 pages, 22 figures, accepted by EPJ-A</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1803.10890">arXiv:1803.10890</a> <span> [<a href="https://arxiv.org/pdf/1803.10890">pdf</a>, <a href="https://arxiv.org/format/1803.10890">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div 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/PhysRevC.97.052501">10.1103/PhysRevC.97.052501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for dark matter decay of the free neutron from the UCNA experiment: n $\rightarrow 蠂+ e^+e^-$ </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Sun%2C+X">X. Sun</a>, <a href="/search/physics?searchtype=author&query=Adamek%2C+E">E. Adamek</a>, <a href="/search/physics?searchtype=author&query=Allgeier%2C+B">B. Allgeier</a>, <a href="/search/physics?searchtype=author&query=Blatnik%2C+M">M. Blatnik</a>, <a href="/search/physics?searchtype=author&query=Bowles%2C+T+J">T. J. Bowles</a>, <a href="/search/physics?searchtype=author&query=Broussard%2C+L+J">L. J. Broussard</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+M+A+-">M. A. -P. Brown</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+R">R. Carr</a>, <a href="/search/physics?searchtype=author&query=Clayton%2C+S">S. Clayton</a>, <a href="/search/physics?searchtype=author&query=Cude-Woods%2C+C">C. Cude-Woods</a>, <a href="/search/physics?searchtype=author&query=Currie%2C+S">S. Currie</a>, <a href="/search/physics?searchtype=author&query=Dees%2C+E+B">E. B. Dees</a>, <a href="/search/physics?searchtype=author&query=Ding%2C+X">X. Ding</a>, <a href="/search/physics?searchtype=author&query=Filippone%2C+B+W">B. W. Filippone</a>, <a href="/search/physics?searchtype=author&query=Garc%C3%ADa%2C+A">A. Garc铆a</a>, <a href="/search/physics?searchtype=author&query=Geltenbort%2C+P">P. Geltenbort</a>, <a href="/search/physics?searchtype=author&query=Hasan%2C+S">S. Hasan</a>, <a href="/search/physics?searchtype=author&query=Hickerson%2C+K+P">K. P. Hickerson</a>, <a href="/search/physics?searchtype=author&query=Hoagland%2C+J">J. Hoagland</a>, <a href="/search/physics?searchtype=author&query=Hong%2C+R">R. Hong</a>, <a href="/search/physics?searchtype=author&query=Hogan%2C+G+E">G. E. Hogan</a>, <a href="/search/physics?searchtype=author&query=Holley%2C+A+T">A. T. Holley</a>, <a href="/search/physics?searchtype=author&query=Ito%2C+T+M">T. M. Ito</a>, <a href="/search/physics?searchtype=author&query=Knecht%2C+A">A. Knecht</a>, <a href="/search/physics?searchtype=author&query=Liu%2C+C+-">C. -Y. Liu</a> , et al. (35 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="1803.10890v1-abstract-short" style="display: inline;"> It has been proposed recently that a previously unobserved neutron decay branch to a dark matter particle ($蠂$) could account for the discrepancy in the neutron lifetime observed in experiments that use two different measurement techniques. One of the possible final states discussed includes a single $蠂$ along with an $e^{+}e^{-}$ pair. We use data from the UCNA (Ultracold Neutron Asymmetry) exper… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.10890v1-abstract-full').style.display = 'inline'; document.getElementById('1803.10890v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1803.10890v1-abstract-full" style="display: none;"> It has been proposed recently that a previously unobserved neutron decay branch to a dark matter particle ($蠂$) could account for the discrepancy in the neutron lifetime observed in experiments that use two different measurement techniques. One of the possible final states discussed includes a single $蠂$ along with an $e^{+}e^{-}$ pair. We use data from the UCNA (Ultracold Neutron Asymmetry) experiment to set limits on this decay channel. Coincident electron-like events are detected with $\sim 4蟺$ acceptance using a pair of detectors that observe a volume of stored Ultracold Neutrons (UCNs). The summed kinetic energy ($E_{e^{+}e^{-}}$) from such events is used to set limits, as a function of the $蠂$ mass, on the branching fraction for this decay channel. For $蠂$ masses consistent with resolving the neutron lifetime discrepancy, we exclude this as the dominant dark matter decay channel at $\gg~5蟽$ level for $100~\text{keV} < E_{e^{+}e^{-}} < 644~\text{keV}$. If the $蠂+e^{+}e^{-}$ final state is not the only one, we set limits on its branching fraction of $< 10^{-4}$ for the above $E_{e^{+}e^{-}}$ range at $> 90\%$ confidence level. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1803.10890v1-abstract-full').style.display = 'none'; document.getElementById('1803.10890v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 March, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 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. C 97, 052501 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1801.04351">arXiv:1801.04351</a> <span> [<a href="https://arxiv.org/pdf/1801.04351">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s00024-017-1526-x">10.1007/s00024-017-1526-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> 3D Cosmic Ray Muon Tomography from an Underground Tunnel </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Guardincerri%2C+E">Elena Guardincerri</a>, <a href="/search/physics?searchtype=author&query=Rowe%2C+C">Charlotte Rowe</a>, <a href="/search/physics?searchtype=author&query=Schultz-Fellenz%2C+E">Emily Schultz-Fellenz</a>, <a href="/search/physics?searchtype=author&query=Roy%2C+M">Mousumi Roy</a>, <a href="/search/physics?searchtype=author&query=George%2C+N">Nicolas George</a>, <a href="/search/physics?searchtype=author&query=Morris%2C+C">Christopher Morris</a>, <a href="/search/physics?searchtype=author&query=Bacon%2C+J">Jeffrey Bacon</a>, <a href="/search/physics?searchtype=author&query=Durham%2C+M">Matthew Durham</a>, <a href="/search/physics?searchtype=author&query=Morley%2C+D">Deborah Morley</a>, <a href="/search/physics?searchtype=author&query=Plaud-Ramos%2C+K">Kenie Plaud-Ramos</a>, <a href="/search/physics?searchtype=author&query=Poulson%2C+D">Daniel Poulson</a>, <a href="/search/physics?searchtype=author&query=Bonneville%2C+A">Alain Bonneville</a>, <a href="/search/physics?searchtype=author&query=Kouzes%2C+R">Richard Kouzes</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="1801.04351v1-abstract-short" style="display: inline;"> We present an underground cosmic ray muon tomographic experiment imaging 3D density of overburden, part of a joint study with differential gravity. Muon data were acquired at four locations within a tunnel beneath Los Alamos, New Mexico, and used in a 3D tomographic inversion to recover the spatial variation in the overlying rock-air interface, and compared with a priori knowledge of the topograph… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.04351v1-abstract-full').style.display = 'inline'; document.getElementById('1801.04351v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1801.04351v1-abstract-full" style="display: none;"> We present an underground cosmic ray muon tomographic experiment imaging 3D density of overburden, part of a joint study with differential gravity. Muon data were acquired at four locations within a tunnel beneath Los Alamos, New Mexico, and used in a 3D tomographic inversion to recover the spatial variation in the overlying rock-air interface, and compared with a priori knowledge of the topography. Densities obtained exhibit good agreement with preliminary results of the gravity modeling, which will be presented elsewhere, and are compatible with values reported in the literature. The modeled rock-air interface matches that obtained from LIDAR within 4 m, our resolution, over much of the model volume. This experiment demonstrates the power of cosmic ray muons to image shallow geological targets using underground detectors, whose development as borehole devices will be an important new direction of passive geophysical imaging. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.04351v1-abstract-full').style.display = 'none'; document.getElementById('1801.04351v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">17 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Pure and Applied Geophysics 174 (2017), 2133-2141 </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Morris%2C+C&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Morris%2C+C&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Morris%2C+C&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> </ul> </nav> <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 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