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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=Gros%2C+M&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Gros%2C+M&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Gros%2C+M&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/2411.03722">arXiv:2411.03722</a> <span> [<a href="https://arxiv.org/pdf/2411.03722">pdf</a>, <a href="https://arxiv.org/format/2411.03722">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"> Performances of a radial TPC for the detection of neutrinoless double beta decay </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cadiou%2C+A">A. Cadiou</a>, <a href="/search/physics?searchtype=author&query=Charpentier%2C+P">P. Charpentier</a>, <a href="/search/physics?searchtype=author&query=Charrier%2C+D">D. Charrier</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Kaizer%2C+J">J. Kaizer</a>, <a href="/search/physics?searchtype=author&query=Kontul%2C+I">I. Kontul</a>, <a href="/search/physics?searchtype=author&query=Ray%2C+P+L">P. Le Ray</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Macko%2C+M">M. Macko</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Povinec%2C+P">P. Povinec</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</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="2411.03722v1-abstract-short" style="display: inline;"> To search for $尾\beta0谓$ decay with unprecedented sensitivity, the R2D2 collaboration is developing a radial time projection chamber with a fiducial mass of half a ton of 136Xe at high pressure. The various approaches implemented to eliminate the radioactive background are presented in terms of detector design, topological recognition of interactions, and event energy reconstruction. The developed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.03722v1-abstract-full').style.display = 'inline'; document.getElementById('2411.03722v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.03722v1-abstract-full" style="display: none;"> To search for $尾\beta0谓$ decay with unprecedented sensitivity, the R2D2 collaboration is developing a radial time projection chamber with a fiducial mass of half a ton of 136Xe at high pressure. The various approaches implemented to eliminate the radioactive background are presented in terms of detector design, topological recognition of interactions, and event energy reconstruction. The developed tools allow for the disentangling of the sought-after signal from the background, and the projected sensitivity after ten years of data taking yields a half-life limit exceeding $10^{27}$ years, along with a constraint on the effective neutrino mass $m_{尾尾}$, sufficient to exclude the inverted mass hierarchy region. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.03722v1-abstract-full').style.display = 'none'; document.getElementById('2411.03722v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.16350">arXiv:2410.16350</a> <span> [<a href="https://arxiv.org/pdf/2410.16350">pdf</a>, <a href="https://arxiv.org/format/2410.16350">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 ionization yield in a methane-filled spherical proportional counter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Arora%2C+M+M">M. M. Arora</a>, <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Clarke%2C+J">J. Clarke</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Coquillat%2C+J+-">J. -M. Coquillat</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Garrah%2C+C">C. Garrah</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+F">F. Kelly</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Makowski%2C+A">A. Makowski</a> , et al. (18 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="2410.16350v1-abstract-short" style="display: inline;"> Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.16350v1-abstract-full').style.display = 'inline'; document.getElementById('2410.16350v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.16350v1-abstract-full" style="display: none;"> Spherical proportional counters (SPCs) are gaseous particle detectors sensitive to single ionization electrons in their target media, with large detector volumes and low background rates. The $\mbox{NEWS-G}$ collaboration employs this technology to search for low-mass dark matter, having previously performed searches with detectors at the Laboratoire Souterrain de Modane (LSM), including a recent campaign with a 135 cm diameter SPC filled with methane. While in situ calibrations of the detector response were carried out at the LSM, measurements of the mean ionization yield and fluctuations of methane gas in SPCs were performed using a 30 cm diameter detector. The results of multiple measurements taken at different operating voltages are presented. A UV laser system was used to measure the mean gas gain of the SPC, along with $\mathrm{^{37}Ar}$ and aluminum-fluorescence calibration sources. These measurements will inform the energy response model of future operating detectors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.16350v1-abstract-full').style.display = 'none'; document.getElementById('2410.16350v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">11 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.19374">arXiv:2404.19374</a> <span> [<a href="https://arxiv.org/pdf/2404.19374">pdf</a>, <a href="https://arxiv.org/format/2404.19374">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"> Perspectives of a single-anode cylindrical chamber operating in ionization mode and high gas pressure </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cecchini%2C+V">V. Cecchini</a>, <a href="/search/physics?searchtype=author&query=Charpentier%2C+P">P. Charpentier</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+B">B. Thomas</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="2404.19374v1-abstract-short" style="display: inline;"> As part of the R2D2 (Rare Decays with Radial Detector) R&D, the use of a gas detector with a spherical or cylindrical cathode, equipped with a single anode and operating at high pressure, was studied for the search of rare phenomena such as neutrinoless double-beta decay. The presented measurements were obtained with a cylindrical detector, covering gas pressures ranging from 1 to 10 bar in argon… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19374v1-abstract-full').style.display = 'inline'; document.getElementById('2404.19374v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.19374v1-abstract-full" style="display: none;"> As part of the R2D2 (Rare Decays with Radial Detector) R&D, the use of a gas detector with a spherical or cylindrical cathode, equipped with a single anode and operating at high pressure, was studied for the search of rare phenomena such as neutrinoless double-beta decay. The presented measurements were obtained with a cylindrical detector, covering gas pressures ranging from 1 to 10 bar in argon and 1 to 6 bar in xenon, using both a point-like source of $^{210}$Po (5.3 MeV $伪$ ) and a diffuse source of $^{222}$Rn (5.5 MeV $伪$). Analysis and interpretation of the data were developed using the anodic current waveform. Similar detection performances were achieved with both gases, and comparable energy resolutions were measured with both sources. As long as the purity of the gas was sufficient, no significant degradation of the measured energy was observed by increasing the pressure. At the highest operating pressure, an energy resolution better than 1.5% full-width at half-maximum (FWHM) was obtained for both gaseous media, although optimal noise conditions were not reached. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19374v1-abstract-full').style.display = 'none'; document.getElementById('2404.19374v1-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, 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/2402.12262">arXiv:2402.12262</a> <span> [<a href="https://arxiv.org/pdf/2402.12262">pdf</a>, <a href="https://arxiv.org/format/2402.12262">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"> BINGO innovative assembly for background reduction in bolometric $0谓尾尾$ experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/physics?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Berest%2C+V">V. Berest</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/physics?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gomez%2C+H">H. Gomez</a>, <a href="/search/physics?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/physics?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/physics?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a> , et al. (23 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="2402.12262v2-abstract-short" style="display: inline;"> BINGO is a project aiming to set the grounds for large-scale bolometric neutrinoless double-beta-decay experiments capable of investigating the effective Majorana neutrino mass at a few meV level. It focuses on developing innovative technologies (a detector assembly, cryogenic photodetectors and active veto) to achieve a very low background index, of the order of $10^{-5}$ counts/(keV kg yr) in th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12262v2-abstract-full').style.display = 'inline'; document.getElementById('2402.12262v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.12262v2-abstract-full" style="display: none;"> BINGO is a project aiming to set the grounds for large-scale bolometric neutrinoless double-beta-decay experiments capable of investigating the effective Majorana neutrino mass at a few meV level. It focuses on developing innovative technologies (a detector assembly, cryogenic photodetectors and active veto) to achieve a very low background index, of the order of $10^{-5}$ counts/(keV kg yr) in the region of interest. The BINGO demonstrator, called MINI-BINGO, is designed to investigate the promising double-beta-decay isotopes $^{100}$Mo and $^{130}$Te and it will be composed of Li$_2$MoO$_4$ and TeO$_2$ crystals coupled to bolometric light detectors and surrounded by a Bi$_4$Ge$_3$O$_{12}$-based veto. This will allow us to reject a significant background in bolometers caused by surface contamination from $伪$-active radionuclides by means of light yield selection and to mitigate other sources of background, such as surface contamination from $尾$-active radionuclides, external $纬$ radioactivity, and pile-up due to random coincidence of background events. This paper describes an R\&D program towards the BINGO goals, particularly focusing on the development of an innovative assembly designed to reduce the passive materials within the line of sight of the detectors, which is expected to be a dominant source of background in next-generation bolometric experiments. We present the performance of two prototype modules -- housing four cubic (4.5-cm side) Li$_2$MoO$_4$ crystals in total -- operated in the Canfranc underground laboratory in Spain within a facility developed for the CROSS double-beta-decay experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12262v2-abstract-full').style.display = 'none'; document.getElementById('2402.12262v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to Nucl. Instr. Meth. A; 28 pages, 11 figures, 4 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/2309.13637">arXiv:2309.13637</a> <span> [<a href="https://arxiv.org/pdf/2309.13637">pdf</a>, <a href="https://arxiv.org/format/2309.13637">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"> R2D2 TPC: first Xenon results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cecchini%2C+V">V. Cecchini</a>, <a href="/search/physics?searchtype=author&query=Cerna%2C+C">C. Cerna</a>, <a href="/search/physics?searchtype=author&query=Charpentier%2C+P">P. Charpentier</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Popieul%2C+F">F. Popieul</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+B">B. Thomas</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="2309.13637v1-abstract-short" style="display: inline;"> Radial time projection chambers (TPC), already employed in the search for rare phenomena such as light Dark Matter candidate, could provide a new detection approach for the search of neutrinoless double beta decay ($尾\beta0谓$). The assessment of the performances of such a detector for $尾\beta0谓$ search is indeed the goal of the Rare Decays with Radial Detector (R2D2) R\&D. Promising results operat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.13637v1-abstract-full').style.display = 'inline'; document.getElementById('2309.13637v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.13637v1-abstract-full" style="display: none;"> Radial time projection chambers (TPC), already employed in the search for rare phenomena such as light Dark Matter candidate, could provide a new detection approach for the search of neutrinoless double beta decay ($尾\beta0谓$). The assessment of the performances of such a detector for $尾\beta0谓$ search is indeed the goal of the Rare Decays with Radial Detector (R2D2) R\&D. Promising results operating a spherical TPC with argon up to 1~bar have been published in 2021. Supplementary measurements were recently taken extending the gas pressure range up to 3~bar. In addition, a comparison between two detector geometries, namely spherical (SPC for spherical proportional counter) and cylindrical (CPC for cylindrical proportional counter), was performed. Using a relatively simple gas purification system the CPC detector was also operated with xenon at 1~bar: an energy resolution of 1.4\% full-width at half-maximum was achieved for drift distances up to 17~cm. Much lower resolution was observed with the SPC. These results are presented in this article. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.13637v1-abstract-full').style.display = 'none'; document.getElementById('2309.13637v1-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 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">16 pages 14 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/2305.01402">arXiv:2305.01402</a> <span> [<a href="https://arxiv.org/pdf/2305.01402">pdf</a>, <a href="https://arxiv.org/format/2305.01402">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/s10052-023-11830-2">10.1140/epjc/s10052-023-11830-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The background model of the CUPID-Mo $0谓尾尾$ experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Collaboration%2C+C">CUPID-Mo Collaboration</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Celi%2C+E">E. Celi</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/physics?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/physics?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a> , et al. (58 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="2305.01402v1-abstract-short" style="display: inline;"> CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0谓尾尾$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01402v1-abstract-full').style.display = 'inline'; document.getElementById('2305.01402v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.01402v1-abstract-full" style="display: none;"> CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0谓尾尾$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the $2谓尾尾$ decay and other processes with high precision. We also measure the radio-purity of the Li$_{2}$$^{100}$MoO$_4$ crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7$^{+0.9}_{-0.8}$(stat)$^{+1.5}_{-0.7}$(syst)$\times10^{-3}$counts/$螖$E$_{FWHM}$/mol$_{iso}$/yr, the lowest in a bolometric $0谓尾尾$ decay experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01402v1-abstract-full').style.display = 'none'; document.getElementById('2305.01402v1-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 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/2303.08508">arXiv:2303.08508</a> <span> [<a href="https://arxiv.org/pdf/2303.08508">pdf</a>, <a href="https://arxiv.org/format/2303.08508">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/18/03/P03031">10.1088/1748-0221/18/03/P03031 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of a spherical high pressure gas TPC for neutrino magnetic moment measurement </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cecchini%2C+V">V. Cecchini</a>, <a href="/search/physics?searchtype=author&query=Cerna%2C+C">C. Cerna</a>, <a href="/search/physics?searchtype=author&query=Charpentier%2C+P">P. Charpentier</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Neep%2C+T">T. Neep</a>, <a href="/search/physics?searchtype=author&query=Nikolopoulos%2C+K">K. Nikolopoulos</a>, <a href="/search/physics?searchtype=author&query=Perrot%2C+F">F. Perrot</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+B">B. Thomas</a>, <a href="/search/physics?searchtype=author&query=Ward%2C+R">R. Ward</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="2303.08508v1-abstract-short" style="display: inline;"> The measurement of neutrino magnetic moment larger than $10^{-19}渭_B$ would be a clear signature of physics beyond the standard model other than the existence of massive Dirac neutrinos. The use of a spherical proportional counter detector filled with gas at 40 bar located near a nuclear reactor would be a simple way to perform such a measurement exploiting the developments made on such a technolo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08508v1-abstract-full').style.display = 'inline'; document.getElementById('2303.08508v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.08508v1-abstract-full" style="display: none;"> The measurement of neutrino magnetic moment larger than $10^{-19}渭_B$ would be a clear signature of physics beyond the standard model other than the existence of massive Dirac neutrinos. The use of a spherical proportional counter detector filled with gas at 40 bar located near a nuclear reactor would be a simple way to perform such a measurement exploiting the developments made on such a technology for the search of dark matter and neutrinoless double beta decay. Different targets can be used just by replacing the gas: xenon, CF$_4$ and argon were compared and the sensitivity in one year of data taking could reach the level of $4.3 \times 10^{-12} 渭_B$, $6.5 \times 10^{-12} 渭_B$, and $8.5 \times 10^{-12} 渭_B$, respectively. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.08508v1-abstract-full').style.display = 'none'; document.getElementById('2303.08508v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">16 pages 5 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2023_JINST_18_P03031 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2303.02067">arXiv:2303.02067</a> <span> [<a href="https://arxiv.org/pdf/2303.02067">pdf</a>, <a href="https://arxiv.org/format/2303.02067">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </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.108.022006">10.1103/PhysRevD.108.022006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Tagging and localisation of ionizing events using NbSi transition edge phonon sensors for Dark Matter searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Filippini%2C+J+B">J. B. Filippini</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Guy%2C+E">E. Guy</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/physics?searchtype=author&query=Martini%2C+N">N. Martini</a> , et al. (14 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2303.02067v1-abstract-short" style="display: inline;"> In the context of direct searches of sub-GeV Dark Matter particles with germanium detectors, the EDELWEISS collaboration has tested a new technique to tag ionizing events using NbSi transition edge athermal phonon sensors. The emission of the athermal phonons generated by the Neganov-Trofimov-Luke effect associated with the drift of electrons and holes through the detectors is used to tag ionizati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.02067v1-abstract-full').style.display = 'inline'; document.getElementById('2303.02067v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2303.02067v1-abstract-full" style="display: none;"> In the context of direct searches of sub-GeV Dark Matter particles with germanium detectors, the EDELWEISS collaboration has tested a new technique to tag ionizing events using NbSi transition edge athermal phonon sensors. The emission of the athermal phonons generated by the Neganov-Trofimov-Luke effect associated with the drift of electrons and holes through the detectors is used to tag ionization events generated in specific parts of the detector localized in front of the NbSi sensor and to reject by more than a factor 5 (at 90% C.L.) the background from heat-only events that dominates the spectrum above 3 keV. This method is able to improve by a factor 2.8 the previous limit on spin-independent interactions of 1 GeV/c2 WIMPs obtained with the same detector and data set but without this tagging technique. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2303.02067v1-abstract-full').style.display = 'none'; document.getElementById('2303.02067v1-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 March, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 11 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/2205.15433">arXiv:2205.15433</a> <span> [<a href="https://arxiv.org/pdf/2205.15433">pdf</a>, <a href="https://arxiv.org/format/2205.15433">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/10.1088/1748-0221/18/02/T02005">10.1088/1748-0221/18/02/T02005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The NEWS-G detector at SNOLAB </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Caron%2C+J+F">J. F. Caron</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Coquillat%2C+J+M">J. M. Coquillat</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Crawford%2C+S">S. Crawford</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Garrah%2C+C">C. Garrah</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+F">F. Kelly</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Kwon%2C+L">L. Kwon</a> , et al. (16 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="2205.15433v3-abstract-short" style="display: inline;"> The New Experiments With Spheres-Gas (NEWS-G) collaboration intends to achieve $\mathrm{sub-GeV/c^{2}}$ Weakly Interacting Massive Particles (WIMPs) detection using Spherical Proportional Counters (SPCs). SPCs are gaseous detectors relying on ionization with a single ionization electron energy threshold. The latest generation of SPC for direct dark matter searches has been installed at SNOLAB in C… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.15433v3-abstract-full').style.display = 'inline'; document.getElementById('2205.15433v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.15433v3-abstract-full" style="display: none;"> The New Experiments With Spheres-Gas (NEWS-G) collaboration intends to achieve $\mathrm{sub-GeV/c^{2}}$ Weakly Interacting Massive Particles (WIMPs) detection using Spherical Proportional Counters (SPCs). SPCs are gaseous detectors relying on ionization with a single ionization electron energy threshold. The latest generation of SPC for direct dark matter searches has been installed at SNOLAB in Canada in 2021. This article details the different processes involved in the fabrication of the NEWS-G experiment. Also outlined in this paper are the mitigation strategies, measurements of radioactivity of the different components, and estimations of induced background event rates that were used to quantify and address detector backgrounds. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.15433v3-abstract-full').style.display = 'none'; document.getElementById('2205.15433v3-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 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 May, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 9 figures, 5 tables, to be published</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2204.14161">arXiv:2204.14161</a> <span> [<a href="https://arxiv.org/pdf/2204.14161">pdf</a>, <a href="https://arxiv.org/format/2204.14161">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"> First cryogenic tests on BINGO innovations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charrier%2C+A">A. Charrier</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F">F. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Combarieu%2C+M">M. De Combarieu</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gomez%2C+H">H. Gomez</a>, <a href="/search/physics?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/physics?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/physics?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/physics?searchtype=author&query=Lefevre%2C+M">M. Lefevre</a>, <a href="/search/physics?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a> , et al. (11 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="2204.14161v1-abstract-short" style="display: inline;"> Neutrinoless double-beta decay ($0\nu2尾$) is a hypothetical rare nuclear transition. Its observation would provide an important insight about the nature of neutrinos (Dirac or Majorana particle) demonstrating that the lepton number is not conserved. BINGO (Bi-Isotope $0\nu2尾$ Next Generation Observatory) aims to set the technological grounds for future bolometric $0\nu2尾$ experiments. It is based… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.14161v1-abstract-full').style.display = 'inline'; document.getElementById('2204.14161v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2204.14161v1-abstract-full" style="display: none;"> Neutrinoless double-beta decay ($0\nu2尾$) is a hypothetical rare nuclear transition. Its observation would provide an important insight about the nature of neutrinos (Dirac or Majorana particle) demonstrating that the lepton number is not conserved. BINGO (Bi-Isotope $0\nu2尾$ Next Generation Observatory) aims to set the technological grounds for future bolometric $0\nu2尾$ experiments. It is based on a dual heat-light readout, i.e. a main scintillating absorber embedding the double-beta decay isotope accompanied by a cryogenic light detector. BINGO will study two of the most promising isotopes: $^{100}$Mo embedded in Li$_2$MoO$_4$ (LMO) crystals and $^{130}$Te embedded in TeO$_2$. BINGO technology will reduce dramatically the background in the region of interest, thus boosting the discovery sensitivity of $0\nu2尾$. The proposed solutions will have a high impact on next-generation bolometric tonne-scale experiments, like CUPID. In this contribution, we present the results obtained during the first tests performed in the framework of BINGO R&D. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2204.14161v1-abstract-full').style.display = 'none'; document.getElementById('2204.14161v1-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 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">4 pages, 2 figures. Contribution to the proceedings of 32nd Rencontres de Blois, Blois, France, 17-22 October 2021</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.08716">arXiv:2202.08716</a> <span> [<a href="https://arxiv.org/pdf/2202.08716">pdf</a>, <a href="https://arxiv.org/format/2202.08716">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/10.1140/epjc/s10052-022-10942-5">10.1140/epjc/s10052-022-10942-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Final results on the $0谓尾尾$ decay half-life limit of $^{100}$Mo from the CUPID-Mo experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/physics?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/physics?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Gironi%2C+L">L. Gironi</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a> , et al. (54 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="2202.08716v2-abstract-short" style="display: inline;"> The CUPID-Mo experiment to search for 0$谓尾尾$ decay in $^{100}$Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0$谓尾尾$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.08716v2-abstract-full').style.display = 'inline'; document.getElementById('2202.08716v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.08716v2-abstract-full" style="display: none;"> The CUPID-Mo experiment to search for 0$谓尾尾$ decay in $^{100}$Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0$谓尾尾$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20 mK. We present here the final analysis with the full exposure of CUPID-Mo ($^{100}$Mo exposure of 1.47 kg$\times$yr) used to search for lepton number violation via 0$谓尾尾$ decay. We report on various analysis improvements since the previous result on a subset of data, reprocessing all data with these new techniques. We observe zero events in the region of interest and set a new limit on the $^{100}$Mo 0$谓尾尾$ decay half-life of $T^{0谓}_{1/2} > 1.8 \times 10^{24}$ year (stat.+syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of $\left<m_{尾尾}\right> < (0.28$--$0.49)$ eV, dependent upon the nuclear matrix element utilized. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.08716v2-abstract-full').style.display = 'none'; document.getElementById('2202.08716v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 82, 1033 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05097">arXiv:2202.05097</a> <span> [<a href="https://arxiv.org/pdf/2202.05097">pdf</a>, <a href="https://arxiv.org/format/2202.05097">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 Methods for Astrophysics">astro-ph.IM</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/10.21468/SciPostPhysProc.9.001">10.21468/SciPostPhysProc.9.001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> EXCESS workshop: Descriptions of rising low-energy spectra </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adari%2C+P">P. Adari</a>, <a href="/search/physics?searchtype=author&query=Aguilar-Arevalo%2C+A">A. Aguilar-Arevalo</a>, <a href="/search/physics?searchtype=author&query=Amidei%2C+D">D. Amidei</a>, <a href="/search/physics?searchtype=author&query=Angloher%2C+G">G. Angloher</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Banik%2C+S">S. Banik</a>, <a href="/search/physics?searchtype=author&query=Baxter%2C+D">D. Baxter</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Beaulieu%2C+G">G. Beaulieu</a>, <a href="/search/physics?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/physics?searchtype=author&query=Gal%2C+Y+B">Y. Ben Gal</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Bento%2C+A">A. Bento</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Bertolini%2C+A">A. Bertolini</a>, <a href="/search/physics?searchtype=author&query=Bhattacharyya%2C+R">R. Bhattacharyya</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Bloch%2C+I+M">I. M. Bloch</a>, <a href="/search/physics?searchtype=author&query=Botti%2C+A">A. Botti</a>, <a href="/search/physics?searchtype=author&query=Breier%2C+R">R. Breier</a>, <a href="/search/physics?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/physics?searchtype=author&query=Bret%2C+J+L">J-. L. Bret</a> , et al. (281 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="2202.05097v2-abstract-short" style="display: inline;"> Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the significant impact of this excess on the dark matter or neutrino sensitivity of these experiments, a collective effort has been started to share the knowledge about the individual observations. For this, the EXCESS Workshop was… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05097v2-abstract-full').style.display = 'inline'; document.getElementById('2202.05097v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.05097v2-abstract-full" style="display: none;"> Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the significant impact of this excess on the dark matter or neutrino sensitivity of these experiments, a collective effort has been started to share the knowledge about the individual observations. For this, the EXCESS Workshop was initiated. In its first iteration in June 2021, ten rare event search collaborations contributed to this initiative via talks and discussions. The contributing collaborations were CONNIE, CRESST, DAMIC, EDELWEISS, MINER, NEWS-G, NUCLEUS, RICOCHET, SENSEI and SuperCDMS. They presented data about their observed energy spectra and known backgrounds together with details about the respective measurements. In this paper, we summarize the presented information and give a comprehensive overview of the similarities and differences between the distinct measurements. The provided data is furthermore publicly available on the workshop's data repository together with a plotting tool for visualization. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.05097v2-abstract-full').style.display = 'none'; document.getElementById('2202.05097v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">44 pages, 20 figures; Editors: A. Fuss, M. Kaznacheeva, F. Reindl, F. Wagner; updated copyright statements and funding information</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> SciPost Phys. Proc. 9, 001 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2201.12621">arXiv:2201.12621</a> <span> [<a href="https://arxiv.org/pdf/2201.12621">pdf</a>, <a href="https://arxiv.org/format/2201.12621">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.2022.166382">10.1016/j.nima.2022.166382 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Simultaneous scintillation light and charge readout of a pure argon filled Spherical Proportional Counter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cecchini%2C+V">V. Cecchini</a>, <a href="/search/physics?searchtype=author&query=Cerna%2C+C">C. Cerna</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Neep%2C+T">T. Neep</a>, <a href="/search/physics?searchtype=author&query=Nikolopoulos%2C+K">K. Nikolopoulos</a>, <a href="/search/physics?searchtype=author&query=Perrot%2C+F">F. Perrot</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+B">B. Thomas</a>, <a href="/search/physics?searchtype=author&query=Ward%2C+R">R. Ward</a>, <a href="/search/physics?searchtype=author&query=Zampaolo%2C+M">M. Zampaolo</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="2201.12621v1-abstract-short" style="display: inline;"> The possible use of a Spherical Proportional Counter for the search of neutrinoless double beta decay is investigated in the R2D2 R&D project. Dual charge and scintillation light readout may improve the detector performance. Tests were carried out with pure argon at 1.1 bar using a 6x6 mm2 silicon photomultiplier. Scintillation light was used for the first time to trigger in a spherical proportion… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.12621v1-abstract-full').style.display = 'inline'; document.getElementById('2201.12621v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.12621v1-abstract-full" style="display: none;"> The possible use of a Spherical Proportional Counter for the search of neutrinoless double beta decay is investigated in the R2D2 R&D project. Dual charge and scintillation light readout may improve the detector performance. Tests were carried out with pure argon at 1.1 bar using a 6x6 mm2 silicon photomultiplier. Scintillation light was used for the first time to trigger in a spherical proportional counter. The measured drift time is in excellent agreement with the expectations from simulations. Furthermore the light signal emitted during the avalanche development exhibits features that could be exploited for event characterisation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.12621v1-abstract-full').style.display = 'none'; document.getElementById('2201.12621v1-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 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">17 pages,14 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/2201.09566">arXiv:2201.09566</a> <span> [<a href="https://arxiv.org/pdf/2201.09566">pdf</a>, <a href="https://arxiv.org/format/2201.09566">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"> Measurements of the ionization efficiency of protons in methane </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Collaboration%2C+N">NEWS-G Collaboration</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Caron%2C+J+-">J. -F. Caron</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Coquillat%2C+J+-">J. -M. Coquillat</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Crawford%2C+S">S. Crawford</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Garrah%2C+C">C. Garrah</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+F">F. Kelly</a> , et al. (19 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="2201.09566v2-abstract-short" style="display: inline;"> The amount of energy released by a nuclear recoil ionizing the atoms of the active volume of detection appears "quenched" compared to an electron of the same kinetic energy. This different behavior in ionization between electrons and nuclei is described by the Ionization Quenching Factor (IQF) and it plays a crucial role in direct dark matter searches. For low kinetic energies (below… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.09566v2-abstract-full').style.display = 'inline'; document.getElementById('2201.09566v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.09566v2-abstract-full" style="display: none;"> The amount of energy released by a nuclear recoil ionizing the atoms of the active volume of detection appears "quenched" compared to an electron of the same kinetic energy. This different behavior in ionization between electrons and nuclei is described by the Ionization Quenching Factor (IQF) and it plays a crucial role in direct dark matter searches. For low kinetic energies (below $50~\mathrm{keV}$), IQF measurements deviate significantly from common models used for theoretical predictions and simulations. We report measurements of the IQF for proton, an appropriate target for searches of Dark Matter candidates with a mass of approximately 1 GeV, with kinetic energies in between $2~\mathrm{keV}$ and $13~\mathrm{keV}$ in $100~\mathrm{mbar}$ of methane. We used the Comimac facility in order to produce the motion of nuclei and electrons of controlled kinetic energy in the active volume, and a NEWS-G SPC to measure the deposited energy. The Comimac electrons are used as reference to calibrate the detector with 7 energy points. A detailed study of systematic effects led to the final results well fitted by $\mathrm{IQF}~(E_K)= E_K^伪~/~(尾+ E_K^伪)$ with $伪=0.70\pm0.08$ and $尾= 1.32\pm0.17$. In agreement with some previous works in other gas mixtures, we measured less ionization energy than predicted from SRIM simulations, the difference reaching $33\%$ at $2~\mathrm{keV}$ <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.09566v2-abstract-full').style.display = 'none'; document.getElementById('2201.09566v2-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 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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, 9 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/2201.01639">arXiv:2201.01639</a> <span> [<a href="https://arxiv.org/pdf/2201.01639">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> </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/s10909-022-02899-2">10.1007/s10909-022-02899-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> High impedance TES bolometers for EDELWEISS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Fillipini%2C+J+-">J. -B. Fillipini</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/physics?searchtype=author&query=Misiak%2C+D">D. Misiak</a> , et al. (13 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="2201.01639v1-abstract-short" style="display: inline;"> The EDELWEISS collaboration aims for direct detection of light dark matter using germanium cryogenic detectors with low threshold phonon sensor technologies and efficient charge readout designs. We describe here the development of Ge bolometers equipped with high impedance thermistors based on a NbxSi1-x TES alloy. High aspect ratio spiral designs allow the TES impedance to match with JFET or HEMT… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.01639v1-abstract-full').style.display = 'inline'; document.getElementById('2201.01639v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2201.01639v1-abstract-full" style="display: none;"> The EDELWEISS collaboration aims for direct detection of light dark matter using germanium cryogenic detectors with low threshold phonon sensor technologies and efficient charge readout designs. We describe here the development of Ge bolometers equipped with high impedance thermistors based on a NbxSi1-x TES alloy. High aspect ratio spiral designs allow the TES impedance to match with JFET or HEMT front-end amplifiers. We detail the behavior of the superconducting transition properties of these sensors and the detector optimization in terms of sensitivity to out-of-equilibrium phonons. We report preliminary results of a 200 g Ge detector that was calibrated using 71Ge activation by neutrons at the LSM underground laboratory. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2201.01639v1-abstract-full').style.display = 'none'; document.getElementById('2201.01639v1-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 January, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">Submitted to Journal of Low Temperature Physics, Special Issue for the 19th International Workshop on Low Temperature Detectors 19-29 July 2021 (Virtual event hold by NIST)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2112.05467">arXiv:2112.05467</a> <span> [<a href="https://arxiv.org/pdf/2112.05467">pdf</a>, <a href="https://arxiv.org/format/2112.05467">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"> Low-mass Dark Matter searches with EDELWEISS </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+A">A. Benoit</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Filippini%2C+J+-">J. -B. Filippini</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/physics?searchtype=author&query=Misiak%2C+D">D. Misiak</a> , et al. (13 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="2112.05467v2-abstract-short" style="display: inline;"> The EDELWEISS collaboration searches for light Dark Matter (DM) particles using germanium detectors equipped with a charge and phonon signal readout. Using the Neganov-Trofimov-Luke effect, an rms resolution of 0.53 electron-hole pair was obtained on a massive (33.4 g) Ge detector operated underground at the Laboratoire Souterrain de Modane. This record sensitivity made possible a search for Dark… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.05467v2-abstract-full').style.display = 'inline'; document.getElementById('2112.05467v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.05467v2-abstract-full" style="display: none;"> The EDELWEISS collaboration searches for light Dark Matter (DM) particles using germanium detectors equipped with a charge and phonon signal readout. Using the Neganov-Trofimov-Luke effect, an rms resolution of 0.53 electron-hole pair was obtained on a massive (33.4 g) Ge detector operated underground at the Laboratoire Souterrain de Modane. This record sensitivity made possible a search for Dark Photon DM down to 1 eV/c2 and to DM-electron interactions below 1 MeV/c2. This demonstrates for the first time the high relevance of cryogenic Ge detectors in searches at low thresholds and is an important step of the development of Ge detectors with improved performance in the context of the EDELWEISS-SubGeV program. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.05467v2-abstract-full').style.display = 'none'; document.getElementById('2112.05467v2-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">Submitted to Journal of Low Temperature Physics, Special Issue for the 19th International Workshop on Low Temperature Detectors 19-29 July 2021 (Virtual event hold by NIST)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2109.01055">arXiv:2109.01055</a> <span> [<a href="https://arxiv.org/pdf/2109.01055">pdf</a>, <a href="https://arxiv.org/format/2109.01055">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.105.052004">10.1103/PhysRevD.105.052004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Quenching factor measurements of neon nuclei in neon gas </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Caron%2C+J+-">J. -F. Caron</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Coquillat%2C+J+-">J. -M. Coquillat</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Crawford%2C+S">S. Crawford</a>, <a href="/search/physics?searchtype=author&query=Fard%2C+A+D">A. Dastgheibi Fard</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Garrah%2C+C">C. Garrah</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+F">F. Kelly</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Kwon%2C+L">L. Kwon</a> , et al. (25 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="2109.01055v2-abstract-short" style="display: inline;"> The NEWS-G collaboration uses Spherical Proportional Counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of the nuclear quenching factor in neon gas at \SI{2}{bar} using an SPC deployed in a neutron beam at the TUNL facility. The energy-dependence of the nuclear quenching factor is modelled using a simple power law: $伪$E… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01055v2-abstract-full').style.display = 'inline'; document.getElementById('2109.01055v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2109.01055v2-abstract-full" style="display: none;"> The NEWS-G collaboration uses Spherical Proportional Counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of the nuclear quenching factor in neon gas at \SI{2}{bar} using an SPC deployed in a neutron beam at the TUNL facility. The energy-dependence of the nuclear quenching factor is modelled using a simple power law: $伪$E$_{nr}^尾$; we determine its parameters by simultaneously fitting the data collected with the detector over a range of energies. We measured the following parameters in Ne:CH$_{4}$ at \SI{2}{bar}: $伪$ = 0.2801 $\pm$ 0.0050 (fit) $\pm$ 0.0045 (sys) and $尾$ = 0.0867 $\pm$ 0.020 (fit) $\pm$ 0.006(sys). Our measurements do not agree with expected values from SRIM or Lindhard theory. We demonstrated the feasibility of performing quenching factor measurements at sub-keV energies in gases using SPCs and a neutron beam. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2109.01055v2-abstract-full').style.display = 'none'; document.getElementById('2109.01055v2-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 December, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">Journal ref:</span> Phys. Rev. D. Vol. 105, No. 5, 052004 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13806">arXiv:2011.13806</a> <span> [<a href="https://arxiv.org/pdf/2011.13806">pdf</a>, <a href="https://arxiv.org/format/2011.13806">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/10.1088/1748-0221/16/02/P02037">10.1088/1748-0221/16/02/P02037 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A CUPID Li$_{2}$$^{100}$MoO$_4$ scintillating bolometer tested in the CROSS underground facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=The+CUPID+Interest+Group"> The CUPID Interest Group</a>, <a href="/search/physics?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/physics?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/physics?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/physics?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/physics?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/physics?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/physics?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/physics?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a> , et al. (156 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13806v1-abstract-short" style="display: inline;"> A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation $0\nu2尾$ experiment CUPID. The measurements were performed at 18 an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13806v1-abstract-full').style.display = 'inline'; document.getElementById('2011.13806v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13806v1-abstract-full" style="display: none;"> A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation $0\nu2尾$ experiment CUPID. The measurements were performed at 18 and 12 mK temperature in a pulse tube dilution refrigerator. This setup utilizes the same technology as the CUORE cryostat that will host CUPID and so represents an accurate estimation of the expected performance. The Li$_{2}$$^{100}$MoO$_4$ bolometer shows a high energy resolution of 6 keV FWHM at the 2615 keV $纬$ line. The detection of scintillation light for each event triggered by the Li$_{2}$$^{100}$MoO$_4$ bolometer allowed for a full separation ($\sim$8$蟽$) between $纬$($尾$) and $伪$ events above 2 MeV. The Li$_{2}$$^{100}$MoO$_4$ crystal also shows a high internal radiopurity with $^{228}$Th and $^{226}$Ra activities of less than 3 and 8 $渭$Bq/kg, respectively. Taking also into account the advantage of a more compact and massive detector array, which can be made of cubic-shaped crystals (compared to the cylindrical ones), this test demonstrates the great potential of cubic Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers for high-sensitivity searches for the $^{100}$Mo $0\nu2尾$ decay in CROSS and CUPID projects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13806v1-abstract-full').style.display = 'none'; document.getElementById('2011.13806v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">19 pages, 7 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13656">arXiv:2011.13656</a> <span> [<a href="https://arxiv.org/pdf/2011.13656">pdf</a>, <a href="https://arxiv.org/format/2011.13656">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"> Characterization of cubic Li$_{2}$$^{100}$MoO$_4$ crystals for the CUPID experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/physics?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/physics?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A8%2C+L">L. Berg猫</a>, <a href="/search/physics?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/physics?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/physics?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/physics?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/physics?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Carniti%2C+P">P. Carniti</a> , et al. (147 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13656v1-abstract-short" style="display: inline;"> The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li$_{2}$$^{100}$MoO$_4$ crystals as suitable detectors for neutrinoless double beta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13656v1-abstract-full').style.display = 'inline'; document.getElementById('2011.13656v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13656v1-abstract-full" style="display: none;"> The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li$_{2}$$^{100}$MoO$_4$ crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of (6.7$\pm$0.6) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of $伪$ particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this $伪$-induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13656v1-abstract-full').style.display = 'none'; document.getElementById('2011.13656v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.11726">arXiv:2011.11726</a> <span> [<a href="https://arxiv.org/pdf/2011.11726">pdf</a>, <a href="https://arxiv.org/format/2011.11726">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/10.1103/PhysRevC.104.015501">10.1103/PhysRevC.104.015501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Novel technique for the study of pile-up events in cryogenic bolometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/physics?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/physics?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/physics?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/physics?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/physics?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/physics?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/physics?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/physics?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/physics?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Carniti%2C+P">P. Carniti</a> , et al. (144 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.11726v2-abstract-short" style="display: inline;"> Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pile-up of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pile-up rejection capability of cryogenic bolometers. Our ap… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11726v2-abstract-full').style.display = 'inline'; document.getElementById('2011.11726v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.11726v2-abstract-full" style="display: none;"> Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pile-up of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pile-up rejection capability of cryogenic bolometers. Our approach, which consists of producing controlled pile-up events with a programmable waveform generator, has the benefit that we can reliably and reproducibly control the time separation and relative energy of the individual components of the generated pile-up events. The resulting data allow us to optimize and benchmark analysis strategies to discriminate between individual and pile-up pulses. We describe a test of this technique performed with a small array of detectors at the Laboratori Nazionali del Gran Sasso, in Italy; we obtain a 90% rejection efficiency against pulser-generated pile-up events with rise time of ~15ms down to time separation between the individual events of about 2ms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11726v2-abstract-full').style.display = 'none'; document.getElementById('2011.11726v2-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 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 015501 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.04033">arXiv:2010.04033</a> <span> [<a href="https://arxiv.org/pdf/2010.04033">pdf</a>, <a href="https://arxiv.org/format/2010.04033">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/03/P03032">10.1088/1748-0221/16/03/P03032 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Pulse Shape Discrimination in CUPID-Mo using Principal Component Analysis </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Huang%2C+R">R. Huang</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a> , et al. (64 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="2010.04033v2-abstract-short" style="display: inline;"> CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. It uses 20 scintillating $^{100}$Mo-enriched Li$_2$MoO$_4$ bolometers instrumented with Ge light detectors to perform active suppression of $伪$ backgrounds, drastically reducing the expected background in the $0谓尾尾$ signal region. As a result, pileup events and small detector instab… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.04033v2-abstract-full').style.display = 'inline'; document.getElementById('2010.04033v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.04033v2-abstract-full" style="display: none;"> CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. It uses 20 scintillating $^{100}$Mo-enriched Li$_2$MoO$_4$ bolometers instrumented with Ge light detectors to perform active suppression of $伪$ backgrounds, drastically reducing the expected background in the $0谓尾尾$ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.04033v2-abstract-full').style.display = 'none'; document.getElementById('2010.04033v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 16 (2021) P03032 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.03153">arXiv:2008.03153</a> <span> [<a href="https://arxiv.org/pdf/2008.03153">pdf</a>, <a href="https://arxiv.org/format/2008.03153">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="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Copper electroplating for background suppression in the NEWS-G experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Collaboration%2C+N">NEWS-G Collaboration</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/physics?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Bunker%2C+R">R. Bunker</a>, <a href="/search/physics?searchtype=author&query=Caron%2C+J+-">J. -F. Caron</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Coquillat%2C+J+-">J. -M. Coquillat</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Crawford%2C+S">S. Crawford</a>, <a href="/search/physics?searchtype=author&query=Fard%2C+A+D">A. Dastgheibi Fard</a>, <a href="/search/physics?searchtype=author&query=Deng%2C+Y">Y. Deng</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+F">F. Kelly</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="2008.03153v2-abstract-short" style="display: inline;"> New Experiments with Spheres-Gas (NEWS-G) is a dark matter direct detection experiment that will operate at SNOLAB (Canada). Similar to other rare-event searches, the materials used in the detector construction are subject to stringent radiopurity requirements. The detector features a 140-cm diameter proportional counter comprising two hemispheres made from commercially sourced 99.99% pure copper.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.03153v2-abstract-full').style.display = 'inline'; document.getElementById('2008.03153v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.03153v2-abstract-full" style="display: none;"> New Experiments with Spheres-Gas (NEWS-G) is a dark matter direct detection experiment that will operate at SNOLAB (Canada). Similar to other rare-event searches, the materials used in the detector construction are subject to stringent radiopurity requirements. The detector features a 140-cm diameter proportional counter comprising two hemispheres made from commercially sourced 99.99% pure copper. Such copper is widely used in rare-event searches because it is readily available, there are no long-lived Cu radioisotopes, and levels of non-Cu radiocontaminants are generally low. However, measurements performed with a dedicated 210Po alpha counting method using an XIA detector confirmed a problematic concentration of 210Pb in bulk of the copper. To shield the proportional counter's active volume, a low-background electroforming method was adapted to the hemispherical shape to grow a 500-$渭$m thick layer of ultra-radiopure copper to the detector's inner surface. In this paper the process is described, which was prototyped at Pacific Northwest National Laboratory (PNNL), USA, and then conducted at full scale in the Laboratoire Souterrain de Modane in France. The radiopurity of the electroplated copper was assessed through Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Measurements of samples from the first (second) hemisphere give 68% confidence upper limits of <0.58 $渭$Bq/kg (<0.24 $渭$Bq/kg) and <0.26 $渭$Bq/kg (<0.11 $渭$Bq/kg) on the 232Th and 238U contamination levels, respectively. These results are comparable to previously reported measurements of electroformed copper produced for other rare-event searches, which were also found to have low concentration of 210Pb consistent with the background goals of the NEWS-G experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.03153v2-abstract-full').style.display = 'none'; document.getElementById('2008.03153v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 13 December, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">11 pages, 11 figures, 3 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nucl.Instrum.Meth.A 988 (2021) 164844 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.02570">arXiv:2007.02570</a> <span> [<a href="https://arxiv.org/pdf/2007.02570">pdf</a>, <a href="https://arxiv.org/format/2007.02570">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/10.1088/1748-0221/16/03/P03012">10.1088/1748-0221/16/03/P03012 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> R2D2 spherical TPC: first energy resolution results </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bouet%2C+R">R. Bouet</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cecchini%2C+V">V. Cecchini</a>, <a href="/search/physics?searchtype=author&query=Cerna%2C+C">C. Cerna</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Druillole%2C+F">F. Druillole</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Hellmuth%2C+P">P. Hellmuth</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Neep%2C+T">T. Neep</a>, <a href="/search/physics?searchtype=author&query=Nikolopoulos%2C+K">K. Nikolopoulos</a>, <a href="/search/physics?searchtype=author&query=Perrot%2C+F">F. Perrot</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Roche%2C+M">M. Roche</a>, <a href="/search/physics?searchtype=author&query=Thomas%2C+B">B. Thomas</a>, <a href="/search/physics?searchtype=author&query=Ward%2C+R">R. Ward</a>, <a href="/search/physics?searchtype=author&query=Zampaolo%2C+M">M. Zampaolo</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.02570v2-abstract-short" style="display: inline;"> Spherical time projection chambers (TPC), also known as spherical proportional counters, are employed in the search for rare phenomena, such as light Dark Matter candidates. The spherical TPC exhibits a number of essential features, making it a promising candidate for the search of neutrinoless double beta decay ($尾\beta0谓$). A tonne-scale spherical TPC experiment could cover a region of parameter… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.02570v2-abstract-full').style.display = 'inline'; document.getElementById('2007.02570v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.02570v2-abstract-full" style="display: none;"> Spherical time projection chambers (TPC), also known as spherical proportional counters, are employed in the search for rare phenomena, such as light Dark Matter candidates. The spherical TPC exhibits a number of essential features, making it a promising candidate for the search of neutrinoless double beta decay ($尾\beta0谓$). A tonne-scale spherical TPC experiment could cover a region of parameter space relevant for the inverted mass hierarchy with a few years of data taking. In this direction, the major R\&D goal of the R2D2 effort is the demonstration of the required energy resolution. First results from an argon-filled prototype detector are reported, demonstrating an energy resolution of 1.1\% FWHM for 5.3~MeV $伪$ tracks in the 0.2 to 1.1~bar pressure range. This is a major milestone in terms of energy resolution, paving the way for further studies with xenon gas, and the possible use of this technology for $尾\beta0谓$ searches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.02570v2-abstract-full').style.display = 'none'; document.getElementById('2007.02570v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.01068">arXiv:2003.01068</a> <span> [<a href="https://arxiv.org/pdf/2003.01068">pdf</a>, <a href="https://arxiv.org/format/2003.01068">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/10.1088/1748-0221/15/11/P11023">10.1088/1748-0221/15/11/P11023 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A resistive ACHINOS multi-anode structure with DLC coating for spherical proportional counters </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Mols%2C+J+-">J. -P. Mols</a>, <a href="/search/physics?searchtype=author&query=Neep%2C+T">T. Neep</a>, <a href="/search/physics?searchtype=author&query=Nikolopoulos%2C+K">K. Nikolopoulos</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+G">G. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Shang%2C+L">L. Shang</a>, <a href="/search/physics?searchtype=author&query=Ward%2C+R">R. Ward</a>, <a href="/search/physics?searchtype=author&query=Zhou%2C+Y">Y. Zhou</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="2003.01068v2-abstract-short" style="display: inline;"> The spherical proportional counter is a gaseous detector used in a variety of applications, including direct dark matter and neutrino-less double beta decay searches. The ACHINOS multianode structure is a read-out technology that overcomes the limitations of single-anode read-out structures for large-size detectors and operation under high pressure. A resistive ACHINOS is presented, where the 3D p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01068v2-abstract-full').style.display = 'inline'; document.getElementById('2003.01068v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.01068v2-abstract-full" style="display: none;"> The spherical proportional counter is a gaseous detector used in a variety of applications, including direct dark matter and neutrino-less double beta decay searches. The ACHINOS multianode structure is a read-out technology that overcomes the limitations of single-anode read-out structures for large-size detectors and operation under high pressure. A resistive ACHINOS is presented, where the 3D printed central component is coated in a Diamond-Like Carbon (DLC) layer. The production and testing of the structure, in terms of stability and resolution, is described. Further applications in fundamental physics and industry are also discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01068v2-abstract-full').style.display = 'none'; document.getElementById('2003.01068v2-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 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 15 (2020) 11, P11023 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.01046">arXiv:2003.01046</a> <span> [<a href="https://arxiv.org/pdf/2003.01046">pdf</a>, <a href="https://arxiv.org/format/2003.01046">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Astrophysics of Galaxies">astro-ph.GA</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="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.125.141301">10.1103/PhysRevLett.125.141301 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First germanium-based constraints on sub-MeV Dark Matter with the EDELWEISS experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Elkhoury%2C+E">E. Elkhoury</a>, <a href="/search/physics?searchtype=author&query=Fillipini%2C+J+-">J. -B. Fillipini</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Lattaud%2C+H">H. Lattaud</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="2003.01046v2-abstract-short" style="display: inline;"> The EDELWEISS collaboration has performed a search for Dark Matter (DM) particles interacting with electrons using a 33.4 g Ge cryogenic detector operated underground at the LSM. A charge resolution of 0.53 electron-hole pairs (RMS) has been achieved using the Neganov-Trofimov-Luke amplification with a bias of 78 V. We set the first Ge-based constraints on sub-MeV/c$^{2}$ DM particles interacting… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01046v2-abstract-full').style.display = 'inline'; document.getElementById('2003.01046v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2003.01046v2-abstract-full" style="display: none;"> The EDELWEISS collaboration has performed a search for Dark Matter (DM) particles interacting with electrons using a 33.4 g Ge cryogenic detector operated underground at the LSM. A charge resolution of 0.53 electron-hole pairs (RMS) has been achieved using the Neganov-Trofimov-Luke amplification with a bias of 78 V. We set the first Ge-based constraints on sub-MeV/c$^{2}$ DM particles interacting with electrons, as well as on dark photons down to 1 eV/c$^2$. These are competitive with other searches. In particular, new limits are set on the kinetic mixing of dark photon DM in a so far unconstrained parameter space region in the 6 to 9 eV/c$^2$ mass range. These results demonstrate the high relevance of cryogenic Ge detectors for the search of DM interactions producing eV-scale electron signals. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2003.01046v2-abstract-full').style.display = 'none'; document.getElementById('2003.01046v2-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 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 March, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 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, 4 figures, corrected typos</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 125, 141301 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.07272">arXiv:1912.07272</a> <span> [<a href="https://arxiv.org/pdf/1912.07272">pdf</a>, <a href="https://arxiv.org/ps/1912.07272">ps</a>, <a href="https://arxiv.org/format/1912.07272">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/10.1140/epjc/s10052-020-8203-4">10.1140/epjc/s10052-020-8203-4 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precise measurement of $2谓尾尾$ decay of $^{100}$Mo with the CUPID-Mo detection technology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a> , et al. (65 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="1912.07272v1-abstract-short" style="display: inline;"> We report the measurement of the two-neutrino double-beta ($2谓尾尾$) decay of $^{100}$Mo to the ground state of $^{100}$Ru using lithium molybdate (\crystal) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory. From a total exposure of $42.235$ kg$\times$d, the half-life of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.07272v1-abstract-full').style.display = 'inline'; document.getElementById('1912.07272v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.07272v1-abstract-full" style="display: none;"> We report the measurement of the two-neutrino double-beta ($2谓尾尾$) decay of $^{100}$Mo to the ground state of $^{100}$Ru using lithium molybdate (\crystal) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory. From a total exposure of $42.235$ kg$\times$d, the half-life of $^{100}$Mo is determined to be $T_{1/2}^{2谓}=[7.12^{+0.18}_{-0.14}\,\mathrm{(stat.)}\pm0.10\,\mathrm{(syst.)}]\times10^{18}$ years. This is the most accurate determination of the $2谓尾尾$ half-life of $^{100}$Mo to date. We also confirm, with the statistical significance of $>3蟽$, that the single-state dominance model of the $2谓尾尾$ decay of $^{100}$Mo is favored over the high-state dominance model. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.07272v1-abstract-full').style.display = 'none'; document.getElementById('1912.07272v1-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 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 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">11 pages, 6 figures, 4 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/1911.10426">arXiv:1911.10426</a> <span> [<a href="https://arxiv.org/pdf/1911.10426">pdf</a>, <a href="https://arxiv.org/format/1911.10426">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1742-6596/1468/1/012129">10.1088/1742-6596/1468/1/012129 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First data from the CUPID-Mo neutrinoless double beta decay experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Schmidt%2C+B">B. Schmidt</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a> , et al. (65 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="1911.10426v1-abstract-short" style="display: inline;"> The CUPID-Mo experiment is searching for neutrinoless double beta decay in $^{100}$Mo, evaluating the technology of cryogenic scintillating Li$_{2}^{100}$MoO$_4$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$_{2}$MoO$_4$ crystals complemented by Ge bolometers for light detection. The detection of both hea… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.10426v1-abstract-full').style.display = 'inline'; document.getElementById('1911.10426v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1911.10426v1-abstract-full" style="display: none;"> The CUPID-Mo experiment is searching for neutrinoless double beta decay in $^{100}$Mo, evaluating the technology of cryogenic scintillating Li$_{2}^{100}$MoO$_4$ detectors for CUPID (CUORE Upgrade with Particle ID). CUPID-Mo detectors feature background suppression using a dual-readout scheme with Li$_{2}$MoO$_4$ crystals complemented by Ge bolometers for light detection. The detection of both heat and scintillation light signals allows the efficient discrimination of $伪$ from $纬$&$尾$ events. In this proceedings, we discuss results from the first 2 months of data taking in spring 2019. In addition to an excellent bolometric performance of 6.7$\,$keV (FWHM) at 2615$\,$keV and an $伪$ separation of better than 99.9\% for all detectors, we report on bulk radiopurity for Th and U. Finally, we interpret the accumulated physics data in terms of a limit of $T_{1/2}^{0谓}\,> 3\times10^{23}\,$yr for $^{100}$Mo and discuss the sensitivity of CUPID-Mo until the expected end of physics data taking in early 2020. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1911.10426v1-abstract-full').style.display = 'none'; document.getElementById('1911.10426v1-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 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Proceedings for TAUP 2019, submitted to IOP Journal of Physics: Conference Series</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Physics: Conference Series 1468 (2020) 012129 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1909.02994">arXiv:1909.02994</a> <span> [<a href="https://arxiv.org/pdf/1909.02994">pdf</a>, <a href="https://arxiv.org/format/1909.02994">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/epjc/s10052-019-7578-6">10.1140/epjc/s10052-019-7578-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/physics?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/physics?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a> , et al. (64 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="1909.02994v1-abstract-short" style="display: inline;"> CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. In this article, we detail the CUPID-Mo detector concept, assembly, installation in the underground laboratory in Modane in 2018, and provide results from the first datasets. The demonstrator consists of an array of 20 scintillating bolometers comprised of $^{100}$Mo-enriched 0.2 kg Li$_2$MoO… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.02994v1-abstract-full').style.display = 'inline'; document.getElementById('1909.02994v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1909.02994v1-abstract-full" style="display: none;"> CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. In this article, we detail the CUPID-Mo detector concept, assembly, installation in the underground laboratory in Modane in 2018, and provide results from the first datasets. The demonstrator consists of an array of 20 scintillating bolometers comprised of $^{100}$Mo-enriched 0.2 kg Li$_2$MoO$_4$ crystals. The detectors are complemented by 20 thin cryogenic Ge bolometers acting as light detectors to distinguish $伪$ from $纬$/$尾$ events by the detection of both heat and scintillation light signals. We observe good detector uniformity, facilitating the operation of a large detector array as well as excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Based on the observed energy resolutions and light yields a separation of $伪$ particles at much better than 99.9\% with equally high acceptance for $纬$/$尾$ events is expected for events in the region of interest for $^{100}$Mo $0谓尾尾$. We present limits on the crystals' radiopurity ($\leq$3 $渭$Bq/kg of $^{226}$Ra and $\leq$2 $渭$Bq/kg of $^{232}$Th). Based on these initial results we also discuss a sensitivity study for the science reach of the CUPID-Mo experiment, in particular, the ability to set the most stringent half-life limit on the $^{100}$Mo $0谓尾尾$ decay after half a year of livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology - developed in the framework of the LUMINEU project - selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale cryogenic $0谓尾尾$ experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1909.02994v1-abstract-full').style.display = 'none'; document.getElementById('1909.02994v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">15 pages, 18 figures, 3 tables; to be submitted to EPJC</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.08960">arXiv:1902.08960</a> <span> [<a href="https://arxiv.org/pdf/1902.08960">pdf</a>, <a href="https://arxiv.org/format/1902.08960">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="Instrumentation and Methods for Astrophysics">astro-ph.IM</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.99.102003">10.1103/PhysRevD.99.102003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Precision laser-based measurements of the single electron response of SPCs for the NEWS-G light dark matter search experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Collaboration%2C+N">NEWS-G Collaboration</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Bard%2C+J+-">J. -P. Bard</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+M">M. Clark</a>, <a href="/search/physics?searchtype=author&query=Crawford%2C+S">S. Crawford</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Di+Stefano%2C+P">P. Di Stefano</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Giroux%2C+G">G. Giroux</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+P">P. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Kamaha%2C+A">A. Kamaha</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+D+G">D. G. Kelly</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</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="1902.08960v1-abstract-short" style="display: inline;"> Spherical Proportional Counters (SPCs) are a novel gaseous detector technology employed by the NEWS-G low-mass dark matter search experiment for their high sensitivity to single electrons from ionization. In this paper, we report on the first characterization of the single electron response of SPCs with unprecedented precision, using a UV-laser calibration system. The experimental approach and ana… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.08960v1-abstract-full').style.display = 'inline'; document.getElementById('1902.08960v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.08960v1-abstract-full" style="display: none;"> Spherical Proportional Counters (SPCs) are a novel gaseous detector technology employed by the NEWS-G low-mass dark matter search experiment for their high sensitivity to single electrons from ionization. In this paper, we report on the first characterization of the single electron response of SPCs with unprecedented precision, using a UV-laser calibration system. The experimental approach and analysis methodology are presented along with various direct applications for the upcoming next phase of the experiment at SNOLAB. These include the continuous monitoring of the detector response and electron drift properties during dark matter search runs, as well as the experimental measurement of the trigger threshold efficiency. We measure a mean ionization energy of $\mathrm{W}=27.6\pm0.2~\mathrm{eV}$ in $\mathrm{Ne + CH_4}$ $(2\%)$ for 2.8 keV X-rays, and demonstrate the feasibility of performing similar precision measurements at sub-keV energies for future gas mixtures to be used for dark matter searches at SNOLAB. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.08960v1-abstract-full').style.display = 'none'; document.getElementById('1902.08960v1-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 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 8 figures, submitted to Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 99, 102003 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1901.03588">arXiv:1901.03588</a> <span> [<a href="https://arxiv.org/pdf/1901.03588">pdf</a>, <a href="https://arxiv.org/format/1901.03588">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Astrophysics of Galaxies">astro-ph.GA</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="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.99.082003">10.1103/PhysRevD.99.082003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searching for low-mass dark matter particles with a massive Ge bolometer operated above-ground </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+A">A. Benoit</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapelier%2C+M">M. Chapelier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Ducimeti%C3%A8re%2C+D">D. Ducimeti猫re</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Maisonobe%2C+R">R. Maisonobe</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/physics?searchtype=author&query=Misiak%2C+D">D. Misiak</a> , et al. (16 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="1901.03588v2-abstract-short" style="display: inline;"> The EDELWEISS collaboration has performed a search for dark matter particles with masses below the GeV-scale with a 33.4-g germanium cryogenic detector operated in a surface lab. The energy deposits were measured using a neutron-transmutation-doped Ge thermal sensor with a 17.7~eV (RMS) baseline heat energy resolution leading to a 60~eV analysis energy threshold. Despite a moderate lead shielding… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.03588v2-abstract-full').style.display = 'inline'; document.getElementById('1901.03588v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1901.03588v2-abstract-full" style="display: none;"> The EDELWEISS collaboration has performed a search for dark matter particles with masses below the GeV-scale with a 33.4-g germanium cryogenic detector operated in a surface lab. The energy deposits were measured using a neutron-transmutation-doped Ge thermal sensor with a 17.7~eV (RMS) baseline heat energy resolution leading to a 60~eV analysis energy threshold. Despite a moderate lead shielding and the high-background environment, the first sub-GeV spin-independent dark matter limit based on a germanium target has been achieved. The experiment provides the most stringent, nuclear recoil based, above-ground limit on spin-independent interactions above 600~MeV/c$^{2}$. The experiment also provides the most stringent limits on spin-dependent interactions with protons and neutrons below 1.3~GeV/c$^{2}$. Furthermore, the dark matter search results were studied in the context of Strongly Interacting Massive Particles, taking into account Earth-shielding effects, for which new regions of the available parameter space have been excluded. Finally, the dark matter search has also been extended to interactions via the Migdal effect, resulting for the first time in the exclusion of particles with masses between 45 and 150~MeV/c$^{2}$ with spin-independent cross sections ranging from $10^{-29}$ to $10^{-26}$~cm$^2$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1901.03588v2-abstract-full').style.display = 'none'; document.getElementById('1901.03588v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 April, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 January, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">16 pages, 8 figures. New figure added for Spin-Dependent interactions. Accepted in Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 99, 082003 (2019) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1809.03270">arXiv:1809.03270</a> <span> [<a href="https://arxiv.org/pdf/1809.03270">pdf</a>, <a href="https://arxiv.org/format/1809.03270">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/10.1088/1748-0221/13/11/P11006">10.1088/1748-0221/13/11/P11006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A sparkless resistive glass correction electrode for the spherical proportional counter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Knights%2C+P">P. Knights</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Nikolopoulos%2C+K">K. Nikolopoulos</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</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="1809.03270v2-abstract-short" style="display: inline;"> A new anode support structure for the spherical proportional counter is presented that incorporates a resistive correction electrode made of glass. This electrode improves the electric field homogeneity versus angle while suppressing the probability and intensity of sparks compared to non-resistive alternatives. The configuration of the correction electrode was optimised with simulations. Such sup… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.03270v2-abstract-full').style.display = 'inline'; document.getElementById('1809.03270v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1809.03270v2-abstract-full" style="display: none;"> A new anode support structure for the spherical proportional counter is presented that incorporates a resistive correction electrode made of glass. This electrode improves the electric field homogeneity versus angle while suppressing the probability and intensity of sparks compared to non-resistive alternatives. The configuration of the correction electrode was optimised with simulations. Such support structures have been constructed and measurements have demonstrated homogeneous response of the detector and operational stability. A measurement of the resistivity of the glass used is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1809.03270v2-abstract-full').style.display = 'none'; document.getElementById('1809.03270v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 October, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 September, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">This work was performed within the NEWS-G collaboration and has received funding from the French National Research Agency (ANR-15-CE31-0008)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1808.02340">arXiv:1808.02340</a> <span> [<a href="https://arxiv.org/pdf/1808.02340">pdf</a>, <a href="https://arxiv.org/format/1808.02340">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.98.082004">10.1103/PhysRevD.98.082004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Searches for electron interactions induced by new physics in the EDELWEISS-III germanium bolometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Kozlov%2C+V">V. Kozlov</a>, <a href="/search/physics?searchtype=author&query=Kraus%2C+H">H. Kraus</a>, <a href="/search/physics?searchtype=author&query=Kudryavtsev%2C+V+A">V. A. Kudryavtsev</a>, <a href="/search/physics?searchtype=author&query=Le-Sueur%2C+H">H. Le-Sueur</a>, <a href="/search/physics?searchtype=author&query=Maisonobe%2C+R">R. Maisonobe</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</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="1808.02340v2-abstract-short" style="display: inline;"> We make use of the EDELWEISS-III array of germanium bolometers to search for electron interactions at the keV scale induced by phenomena beyond the Standard Model. A 90% C.L. lower limit is set on the electron lifetime decaying to invisibles, $蟿> 1.2\times 10^{24}$ years. We investigate the emission of axions or axionlike particles (ALPs) by the Sun, constraining the coupling parameters… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.02340v2-abstract-full').style.display = 'inline'; document.getElementById('1808.02340v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1808.02340v2-abstract-full" style="display: none;"> We make use of the EDELWEISS-III array of germanium bolometers to search for electron interactions at the keV scale induced by phenomena beyond the Standard Model. A 90% C.L. lower limit is set on the electron lifetime decaying to invisibles, $蟿> 1.2\times 10^{24}$ years. We investigate the emission of axions or axionlike particles (ALPs) by the Sun, constraining the coupling parameters $g_{ae}<1.1\times 10^{-11}$ and $g_{ae}\times g_{aN}^{\rm eff} < 3.5\times 10^{-17}$ at 90% C.L. in the massless limit. We also directly search for the absorption of bosonic dark matter particles that would constitute our local galactic halo. Limits are placed on the couplings of ALPs or hidden photon dark matter in the mass range $0.8 - 500$ keV/c$^2$. Prospects for searching for dark matter particles with masses down to 150 eV/c$^2$ using improved detectors are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1808.02340v2-abstract-full').style.display = 'none'; document.getElementById('1808.02340v2-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 November, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 August, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">8 pages, 5 figures, matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 98, 082004 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1710.04536">arXiv:1710.04536</a> <span> [<a href="https://arxiv.org/pdf/1710.04536">pdf</a>, <a href="https://arxiv.org/format/1710.04536">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/10.1088/1748-0221/13/01/P01009">10.1088/1748-0221/13/01/P01009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of a spherical Xenon gas TPC for neutrinoless double beta detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Meregaglia%2C+A">A. Meregaglia</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Cerna%2C+C">C. Cerna</a>, <a href="/search/physics?searchtype=author&query=Chauveau%2C+M">M. Chauveau</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Jollet%2C+C">C. Jollet</a>, <a href="/search/physics?searchtype=author&query=Jullian%2C+S">S. Jullian</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Lautridou%2C+P">P. Lautridou</a>, <a href="/search/physics?searchtype=author&query=Marquet%2C+C">C. Marquet</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Perrot%2C+F">F. Perrot</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Simard%2C+L">L. Simard</a>, <a href="/search/physics?searchtype=author&query=Zampaolo%2C+M">M. Zampaolo</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="1710.04536v2-abstract-short" style="display: inline;"> Several efforts are ongoing for the development of spherical gaseous time projection chamber detectors for the observation of rare phenomena such as weakly interacting massive particles or neutrino interactions. The proposed detector, thanks to its simplicity, low energy threshold and energy resolution, could be used to observe the $尾\beta0谓$ process i.e. the neutrinoless double beta decay. In thi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.04536v2-abstract-full').style.display = 'inline'; document.getElementById('1710.04536v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1710.04536v2-abstract-full" style="display: none;"> Several efforts are ongoing for the development of spherical gaseous time projection chamber detectors for the observation of rare phenomena such as weakly interacting massive particles or neutrino interactions. The proposed detector, thanks to its simplicity, low energy threshold and energy resolution, could be used to observe the $尾\beta0谓$ process i.e. the neutrinoless double beta decay. In this work, a specific setup is presented for the measurement of $尾\beta0谓$ on 50~kg of $^{136}$Xe. The different backgrounds are studied, demonstrating the possibility to reach a total background per year in the detector mass at the level of 2 events per year. The obtained results are competitive with the present generation of experiments and could represent the first step of a more ambitious roadmap including the $尾\beta0谓$ search with different gases with the same detector and therefore the same background sources. The constraints in terms of detector constructions and material purity are also addressed, showing that none of them represents a show stopper for the proposed experimental setup. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.04536v2-abstract-full').style.display = 'none'; document.getElementById('1710.04536v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 October, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2018_JINST_13_P01009 https://doi.org/10.1088/1748-0221/13/01/P01009 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1710.03459">arXiv:1710.03459</a> <span> [<a href="https://arxiv.org/pdf/1710.03459">pdf</a>, <a href="https://arxiv.org/ps/1710.03459">ps</a>, <a href="https://arxiv.org/format/1710.03459">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/PhysRevC.97.032501">10.1103/PhysRevC.97.032501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Complete event-by-event $伪$/$纬(尾)$ separation in a full-size TeO$_2$ CUORE bolometer by Neganov-Luke-magnified light detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/physics?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/physics?searchtype=author&query=Nones%2C+C">C. Nones</a>, <a href="/search/physics?searchtype=author&query=Novati%2C+V">V. Novati</a>, <a href="/search/physics?searchtype=author&query=Olivieri%2C+E">E. Olivieri</a>, <a href="/search/physics?searchtype=author&query=Paul%2C+B">B. Paul</a>, <a href="/search/physics?searchtype=author&query=Poda%2C+D+V">D. V. Poda</a>, <a href="/search/physics?searchtype=author&query=Redon%2C+T">T. Redon</a>, <a href="/search/physics?searchtype=author&query=Siebenborn%2C+B">B. Siebenborn</a>, <a href="/search/physics?searchtype=author&query=Zolotarova%2C+A+S">A. S. Zolotarova</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a> , et al. (19 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="1710.03459v2-abstract-short" style="display: inline;"> In the present work, we describe the results obtained with a large ($\approx 133$ cm$^3$) TeO$_2$ bolometer, with a view to a search for neutrinoless double-beta decay ($0谓尾尾$) of $^{130}$Te. We demonstrate an efficient $伪$ particle discrimination (99.9\%) with a high acceptance of the $0谓尾尾$ signal (about 96\%), expected at $\approx 2.5$ MeV. This unprecedented result was possible thanks to the s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.03459v2-abstract-full').style.display = 'inline'; document.getElementById('1710.03459v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1710.03459v2-abstract-full" style="display: none;"> In the present work, we describe the results obtained with a large ($\approx 133$ cm$^3$) TeO$_2$ bolometer, with a view to a search for neutrinoless double-beta decay ($0谓尾尾$) of $^{130}$Te. We demonstrate an efficient $伪$ particle discrimination (99.9\%) with a high acceptance of the $0谓尾尾$ signal (about 96\%), expected at $\approx 2.5$ MeV. This unprecedented result was possible thanks to the superior performance (10 eV rms baseline noise) of a Neganov-Luke-assisted germanium bolometer used to detect a tiny (70 eV) light signal from the TeO$_2$ detector, dominated by $纬$($尾$)-induced Cherenkov radiation but exhibiting also a clear scintillation component. The obtained results represent a major breakthrough towards the TeO$_2$-based version of CUORE Upgrade with Particle IDentification (CUPID), a ton-scale cryogenic $0谓尾尾$ experiment proposed as a follow-up to the CUORE project with particle identification. The CUORE experiment began recently a search for neutrinoless double-beta decay of $^{130}$Te with an array of 988 125-cm$^3$ TeO$_2$ bolometers. The lack of $伪$ discrimination in CUORE makes $伪$ decays at the detector surface the dominant background component, at the level of $\approx 0.01$ counts/(keV kg y) in the region of interest. We show here, for the first time with a CUORE-size bolometer and using the same technology as CUORE for the readout of both heat and light signals, that surface $伪$ background can be fully rejected. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1710.03459v2-abstract-full').style.display = 'none'; document.getElementById('1710.03459v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 April, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 October, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">The second version reflects the changes made after PRC referees' comments</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, 032501(R) (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1707.09254">arXiv:1707.09254</a> <span> [<a href="https://arxiv.org/pdf/1707.09254">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> </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/10.1088/1748-0221/12/12/P12031">10.1088/1748-0221/12/12/P12031 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A multiball read-out for the spherical proportional counter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Giganon%2C+A">A. Giganon</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Tsiledakis%2C+G">G. Tsiledakis</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</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="1707.09254v1-abstract-short" style="display: inline;"> We present a novel concept of proportional gas amplification for the read-out of the spherical proportional counter. The standard single-ball read-out presents limitations for large diameter spherical detectors and high pressure operations. We have developed a multi-ball read-out system which consists of several balls sitting at a fixed distance from the center of the spherical vessel. Such a modu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.09254v1-abstract-full').style.display = 'inline'; document.getElementById('1707.09254v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1707.09254v1-abstract-full" style="display: none;"> We present a novel concept of proportional gas amplification for the read-out of the spherical proportional counter. The standard single-ball read-out presents limitations for large diameter spherical detectors and high pressure operations. We have developed a multi-ball read-out system which consists of several balls sitting at a fixed distance from the center of the spherical vessel. Such a module can tune the volume electric field at the desired value and can also provide detector segmentation with individual ball read-out. In the latter case the large volume of the vessel becomes a spherical time projection chamber with 3D capabilities. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.09254v1-abstract-full').style.display = 'none'; document.getElementById('1707.09254v1-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 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 figures, 14 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1707.04308">arXiv:1707.04308</a> <span> [<a href="https://arxiv.org/pdf/1707.04308">pdf</a>, <a href="https://arxiv.org/format/1707.04308">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.97.022003">10.1103/PhysRevD.97.022003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Optimizing EDELWEISS detectors for low-mass WIMP searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Hehn%2C+L">L. Hehn</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/physics?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/physics?searchtype=author&query=Kozlov%2C+V">V. Kozlov</a>, <a href="/search/physics?searchtype=author&query=Kraus%2C+H">H. Kraus</a> , et al. (18 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="1707.04308v1-abstract-short" style="display: inline;"> The physics potential of EDELWEISS detectors for the search of low-mass Weakly Interacting Massive Particles (WIMPs) is studied. Using a data-driven background model, projected exclusion limits are computed using frequentist and multivariate analysis approaches, namely profile likelihood and boosted decision tree. Both current and achievable experimental performance are considered. The optimal str… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.04308v1-abstract-full').style.display = 'inline'; document.getElementById('1707.04308v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1707.04308v1-abstract-full" style="display: none;"> The physics potential of EDELWEISS detectors for the search of low-mass Weakly Interacting Massive Particles (WIMPs) is studied. Using a data-driven background model, projected exclusion limits are computed using frequentist and multivariate analysis approaches, namely profile likelihood and boosted decision tree. Both current and achievable experimental performance are considered. The optimal strategy for detector optimization depends critically on whether the emphasis is put on WIMP masses below or above $\sim$ 5 GeV/c$^2$. The projected sensitivity for the next phase of the EDELWEISS-III experiment at the Modane Underground Laboratory (LSM) for low-mass WIMP search is presented. By 2018 an upper limit on the spin-independent WIMP-nucleon cross-section of $蟽_{SI} = 7 \times 10^{-42}$ cm$^2$ is expected for a WIMP mass in the range 2$-$5 GeV/c$^2$. The requirements for a future hundred-kilogram scale experiment designed to reach the bounds imposed by the coherent scattering of solar neutrinos are also described. By improving the ionization resolution down to 50 eV$_{ee}$, we show that such an experiment installed in an even lower background environment (e.g. at SNOLAB) should allow to observe about 80 $^8$B neutrino events after discrimination. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1707.04308v1-abstract-full').style.display = 'none'; document.getElementById('1707.04308v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 July, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">21 pages, 12 figures, submitted to Phys. Rev. D</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 97, 022003 (2018) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1706.04934">arXiv:1706.04934</a> <span> [<a href="https://arxiv.org/pdf/1706.04934">pdf</a>, <a href="https://arxiv.org/format/1706.04934">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 Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and 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.astropartphys.2017.10.009">10.1016/j.astropartphys.2017.10.009 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> First results from the NEWS-G direct dark matter search experiment at the LSM </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Collaboration%2C+N">NEWS-G Collaboration</a>, <a href="/search/physics?searchtype=author&query=%3A"> :</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Asner%2C+D">D. Asner</a>, <a href="/search/physics?searchtype=author&query=Bard%2C+J+-">J. -P. Bard</a>, <a href="/search/physics?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/physics?searchtype=author&query=Cai%2C+B">B. Cai</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Clark%2C+M">M. Clark</a>, <a href="/search/physics?searchtype=author&query=Corcoran%2C+E+C">E. C. Corcoran</a>, <a href="/search/physics?searchtype=author&query=Dandl%2C+T">T. Dandl</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">A. Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Dering%2C+K">K. Dering</a>, <a href="/search/physics?searchtype=author&query=Di+Stefano%2C+P">P. Di Stefano</a>, <a href="/search/physics?searchtype=author&query=Durnford%2C+D">D. Durnford</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gorel%2C+P">P. Gorel</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Guillaudin%2C+O">O. Guillaudin</a>, <a href="/search/physics?searchtype=author&query=Hoppe%2C+E+W">E. W. Hoppe</a>, <a href="/search/physics?searchtype=author&query=Kamaha%2C+A">A. Kamaha</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Kelly%2C+D+G">D. G. Kelly</a>, <a href="/search/physics?searchtype=author&query=Martin%2C+R+D">R. D. Martin</a> , et al. (12 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="1706.04934v2-abstract-short" style="display: inline;"> New Experiments With Spheres-Gas (NEWS-G) is a direct dark matter detection experiment using Spherical Proportional Counters (SPCs) with light noble gases to search for low-mass Weakly Interacting Massive Particles (WIMPs). We report the results from the first physics run taken at the Laboratoire Souterrain de Modane (LSM) with SEDINE, a 60 cm diameter prototype SPC operated with a mixture of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.04934v2-abstract-full').style.display = 'inline'; document.getElementById('1706.04934v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1706.04934v2-abstract-full" style="display: none;"> New Experiments With Spheres-Gas (NEWS-G) is a direct dark matter detection experiment using Spherical Proportional Counters (SPCs) with light noble gases to search for low-mass Weakly Interacting Massive Particles (WIMPs). We report the results from the first physics run taken at the Laboratoire Souterrain de Modane (LSM) with SEDINE, a 60 cm diameter prototype SPC operated with a mixture of $\mathrm{Ne}+\mathrm{CH}_{4}$ (0.7 %) at 3.1 bars for a total exposure of $9.7\;\mathrm{kg\cdot days}$. New constraints are set on the spin-independent WIMP-nucleon scattering cross-section in the sub-$\mathrm{GeV/c^2}$ mass region. We exclude cross-sections above $4.4 \times \mathrm{10^{-37}\;cm^2}$ at 90 % confidence level (C.L.) for a 0.5 $\mathrm{GeV/c^2}$ WIMP. The competitive results obtained with SEDINE are promising for the next phase of the NEWS-G experiment: a 140 cm diameter SPC to be installed at SNOLAB by summer 2018. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.04934v2-abstract-full').style.display = 'none'; document.getElementById('1706.04934v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 September, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 10 figures, acknowledgments section updated</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1706.01070">arXiv:1706.01070</a> <span> [<a href="https://arxiv.org/pdf/1706.01070">pdf</a>, <a href="https://arxiv.org/format/1706.01070">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="Instrumentation and Methods for Astrophysics">astro-ph.IM</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/10.1088/1748-0221/12/08/P08010">10.1088/1748-0221/12/08/P08010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Performance of the EDELWEISS-III experiment for direct dark matter searches </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Fourches%2C+N">N. Fourches</a>, <a href="/search/physics?searchtype=author&query=Garde%2C+G">G. Garde</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Grollier%2C+M">M. Grollier</a> , et al. (38 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="1706.01070v1-abstract-short" style="display: inline;"> We present the results of measurements demonstrating the efficiency of the EDELWEISS-III array of cryogenic germanium detectors for direct dark matter searches. The experimental setup and the FID (Fully Inter-Digitized) detector array is described, as well as the efficiency of the double measurement of heat and ionization signals in background rejection. For the whole set of 24 FID detectors used… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.01070v1-abstract-full').style.display = 'inline'; document.getElementById('1706.01070v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1706.01070v1-abstract-full" style="display: none;"> We present the results of measurements demonstrating the efficiency of the EDELWEISS-III array of cryogenic germanium detectors for direct dark matter searches. The experimental setup and the FID (Fully Inter-Digitized) detector array is described, as well as the efficiency of the double measurement of heat and ionization signals in background rejection. For the whole set of 24 FID detectors used for coincidence studies, the baseline resolutions for the fiducial ionization energy are mainly below 0.7 keV$_{ee}$ (FHWM) whereas the baseline resolutions for heat energies are mainly below 1.5 keV$_{ee}$ (FWHM). The response to nuclear recoils as well as the very good discrimination capability of the FID design has been measured with an AmBe source. The surface $尾$- and $伪$-decay rejection power of $R_{\rm surf} < 4 \times 10^{-5}$ per $伪$ at 90% C.L. has been determined with a $^{210}$Pb source, the rejection of bulk $纬$-ray events has been demonstrated using $纬$-calibrations with $^{133}$Ba sources leading to a value of $R_{纬{\rm -mis-fid}} < 2.5 \times 10^{-6}$ at 90% C.L.. The current levels of natural radioactivity measured in the detector array are shown as the rate of single $纬$ background. The fiducial volume fraction of the FID detectors has been measured to a weighted average value of $(74.6 \pm 0.4)\%$ using the cosmogenic activation of the $^{65}$Zn and $^{68,71}$Ge isotopes. The stability and uniformity of the detector response is also discussed. The achieved resolutions, thresholds and background levels of the upgraded EDELWEISS-III detectors in their setup are thus well suited to the direct search of WIMP dark matter over a large mass range. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1706.01070v1-abstract-full').style.display = 'none'; document.getElementById('1706.01070v1-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 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1704.01758">arXiv:1704.01758</a> <span> [<a href="https://arxiv.org/pdf/1704.01758">pdf</a>, <a href="https://arxiv.org/ps/1704.01758">ps</a>, <a href="https://arxiv.org/format/1704.01758">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/10.1140/epjc/s10052-017-5343-2">10.1140/epjc/s10052-017-5343-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Development of $^{100}$Mo-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/physics?searchtype=author&query=Beeman%2C+J+W">J. W. Beeman</a>, <a href="/search/physics?searchtype=author&query=Bekker%2C+T+B">T. B. Bekker</a>, <a href="/search/physics?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/physics?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/physics?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/physics?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/physics?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a> , et al. (77 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1704.01758v2-abstract-short" style="display: inline;"> This paper reports on the development of a technology involving $^{100}$Mo-enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass ($\sim$1~kg), high optical quality, radiopure $^{100}$Mo-containing zinc and lithium molybdate crystals have been produced and used to develop high… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01758v2-abstract-full').style.display = 'inline'; document.getElementById('1704.01758v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1704.01758v2-abstract-full" style="display: none;"> This paper reports on the development of a technology involving $^{100}$Mo-enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass ($\sim$1~kg), high optical quality, radiopure $^{100}$Mo-containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2--0.4~kg scintillating bolometers. In particular, the energy resolution of the lithium molybdate detectors near the $Q$-value of the double-beta transition of $^{100}$Mo (3034~keV) is 4--6~keV FWHM. The rejection of the $伪$-induced dominant background above 2.6~MeV is better than 8$蟽$. Less than 10~$渭$Bq/kg activity of $^{232}$Th ($^{228}$Th) and $^{226}$Ra in the crystals is ensured by boule recrystallization. The potential of $^{100}$Mo-enriched scintillating bolometers to perform high sensitivity double-beta decay searches has been demonstrated with only 10~kg$\times$d exposure: the two neutrino double-beta decay half-life of $^{100}$Mo has been measured with the up-to-date highest accuracy as $T_{1/2}$ = [6.90 $\pm$ 0.15(stat.) $\pm$ 0.37(syst.)] $\times$ 10$^{18}$~yr. Both crystallization and detector technologies favor lithium molybdate, which has been selected for the ongoing construction of the CUPID-0/Mo demonstrator, containing several kg of $^{100}$Mo. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1704.01758v2-abstract-full').style.display = 'none'; document.getElementById('1704.01758v2-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 October, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 April, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">25 pages, 12 figures, 8 tables; submitted to EPJC</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 77 (2017) 785 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1607.04560">arXiv:1607.04560</a> <span> [<a href="https://arxiv.org/pdf/1607.04560">pdf</a>, <a href="https://arxiv.org/format/1607.04560">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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"> Measurement of the cosmogenic activation of germanium detectors in EDELWEISS-III </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=The+EDELWEISS+Collaboration"> The EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Bl%C3%BCmer%2C+J">J. Bl眉mer</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Hehn%2C+L">L. Hehn</a>, <a href="/search/physics?searchtype=author&query=Heuermann%2C+G">G. Heuermann</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1607.04560v1-abstract-short" style="display: inline;"> We present a measurement of the cosmogenic activation in the germanium cryogenic detectors of the EDELWEISS III direct dark matter search experiment. The decay rates measured in detectors with different exposures to cosmic rays above ground are converted into production rates of different isotopes. The measured production rates in units of nuclei/kg/day are 82 $\pm$ 21 for $^3$H, 2.8 $\pm$ 0.6 for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.04560v1-abstract-full').style.display = 'inline'; document.getElementById('1607.04560v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.04560v1-abstract-full" style="display: none;"> We present a measurement of the cosmogenic activation in the germanium cryogenic detectors of the EDELWEISS III direct dark matter search experiment. The decay rates measured in detectors with different exposures to cosmic rays above ground are converted into production rates of different isotopes. The measured production rates in units of nuclei/kg/day are 82 $\pm$ 21 for $^3$H, 2.8 $\pm$ 0.6 for $^{49}$V, 4.6 $\pm$ 0.7 for $^{55}$Fe, and 106 $\pm$ 13 for $^{65}$Zn. These results are the most accurate for these isotopes. A lower limit on the production rate of $^{68}$Ge of 74 nuclei/kg/day is also presented. They are compared to model predictions present in literature and to estimates calculated with the ACTIVIA code. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.04560v1-abstract-full').style.display = 'none'; document.getElementById('1607.04560v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2016. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1607.03367">arXiv:1607.03367</a> <span> [<a href="https://arxiv.org/pdf/1607.03367">pdf</a>, <a href="https://arxiv.org/format/1607.03367">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="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/s10052-016-4388-y">10.1140/epjc/s10052-016-4388-y <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved EDELWEISS-III sensitivity for low-mass WIMPs using a profile likelihood approach </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Hehn%2C+L">L. Hehn</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Bl%C3%BCmer%2C+J">J. Bl眉mer</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Heuermann%2C+G">G. Heuermann</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/physics?searchtype=author&query=Juillard%2C+A">A. Juillard</a> , et al. (24 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1607.03367v2-abstract-short" style="display: inline;"> We report on a dark matter search for a Weakly Interacting Massive Particle (WIMP) in the mass range $m_蠂\in [4, 30]\,\mathrm{GeV}/c^2$ with the EDELWEISS-III experiment. A 2D profile likelihood analysis is performed on data from eight selected detectors with the lowest energy thresholds leading to a combined fiducial exposure of 496 kg-days. External backgrounds from $纬$- and $尾$-radiation, recoi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.03367v2-abstract-full').style.display = 'inline'; document.getElementById('1607.03367v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1607.03367v2-abstract-full" style="display: none;"> We report on a dark matter search for a Weakly Interacting Massive Particle (WIMP) in the mass range $m_蠂\in [4, 30]\,\mathrm{GeV}/c^2$ with the EDELWEISS-III experiment. A 2D profile likelihood analysis is performed on data from eight selected detectors with the lowest energy thresholds leading to a combined fiducial exposure of 496 kg-days. External backgrounds from $纬$- and $尾$-radiation, recoils from $^{206}$Pb and neutrons as well as detector intrinsic backgrounds were modelled from data outside the region of interest and constrained in the analysis. The basic data selection and most of the background models are the same as those used in a previously published analysis based on Boosted Decision Trees (BDT). For the likelihood approach applied in the analysis presented here, a larger signal efficiency and a subtraction of the expected background lead to a higher sensitivity, especially for the lowest WIMP masses probed. No statistically significant signal was found and upper limits on the spin-independent WIMP-nucleon scattering cross section can be set with a hypothesis test based on the profile likelihood test statistics. The 90% C.L. exclusion limit set for WIMPs with $m_蠂= 4\,\mathrm{GeV/}c^2$ is $1.6 \times 10^{-39}\,\mathrm{cm^2}$, which is an improvement of a factor of seven with respect to the BDT-based analysis. For WIMP masses above $15\,\mathrm{GeV/}c^2$ the exclusion limits found with both analyses are in good agreement. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1607.03367v2-abstract-full').style.display = 'none'; document.getElementById('1607.03367v2-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 September, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">11 pages, 6 figures, 2 tables (updated to accepted version)</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> EPJ C (2016) 76:548 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1606.08097">arXiv:1606.08097</a> <span> [<a href="https://arxiv.org/pdf/1606.08097">pdf</a>, <a href="https://arxiv.org/format/1606.08097">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/11/10/P10008">10.1088/1748-0221/11/10/P10008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Signals induced by charge-trapping in EDELWEISS FID detectors: analytical modeling and applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=The+EDELWEISS+Collaboration"> The EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Bl%C3%BCmer%2C+J">J. Bl眉mer</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Fourches%2C+N">N. Fourches</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Hehn%2C+L">L. Hehn</a>, <a href="/search/physics?searchtype=author&query=Heuermann%2C+G">G. Heuermann</a>, <a href="/search/physics?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/physics?searchtype=author&query=Jin%2C+Y">Y. Jin</a> , et al. (25 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="1606.08097v2-abstract-short" style="display: inline;"> The EDELWEISS-III direct dark matter search experiment uses cryogenic HP-Ge detectors Fully covered with Inter-Digitized electrodes (FID). They are operated at low fields ($<1\;\mathrm{V/cm}$), and as a consequence charge-carrier trapping significantly affects both the ionization and heat energy measurements. This paper describes an analytical model of the signals induced by trapped charges in FID… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.08097v2-abstract-full').style.display = 'inline'; document.getElementById('1606.08097v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1606.08097v2-abstract-full" style="display: none;"> The EDELWEISS-III direct dark matter search experiment uses cryogenic HP-Ge detectors Fully covered with Inter-Digitized electrodes (FID). They are operated at low fields ($<1\;\mathrm{V/cm}$), and as a consequence charge-carrier trapping significantly affects both the ionization and heat energy measurements. This paper describes an analytical model of the signals induced by trapped charges in FID detectors based on the Shockley-Ramo theorem. It is used to demonstrate that veto electrodes, initially designed for the sole purpose of surface event rejection, can be used to provide a sensitivity to the depth of the energy deposits, characterize the trapping in the crystals, perform heat and ionization energy corrections and improve the ionization baseline resolutions. These procedures are applied successfully to actual data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1606.08097v2-abstract-full').style.display = 'none'; document.getElementById('1606.08097v2-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 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 June, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">17 pages 12 figures, submitted to JINST, author list updated</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1603.05120">arXiv:1603.05120</a> <span> [<a href="https://arxiv.org/pdf/1603.05120">pdf</a>, <a href="https://arxiv.org/format/1603.05120">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1475-7516/2016/05/019">10.1088/1475-7516/2016/05/019 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Constraints on low-mass WIMPs from the EDELWEISS-III dark matter search </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/physics?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/physics?searchtype=author&query=Bl%C3%BCmer%2C+J">J. Bl眉mer</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/physics?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/physics?searchtype=author&query=Foerster%2C+N">N. Foerster</a>, <a href="/search/physics?searchtype=author&query=Fourches%2C+N">N. Fourches</a>, <a href="/search/physics?searchtype=author&query=Garde%2C+G">G. Garde</a>, <a href="/search/physics?searchtype=author&query=Gascon%2C+J">J. Gascon</a> , et al. (42 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1603.05120v2-abstract-short" style="display: inline;"> We present the results of a search for elastic scattering from galactic dark matter in the form of Weakly Interacting Massive Particles (WIMPs) in the 4-30 GeV/$c^2$ mass range. We make use of a 582 kg-day fiducial exposure from an array of 800 g Germanium bolometers equipped with a set of interleaved electrodes with full surface coverage. We searched specifically for $\sim 2.5-20$ keV nuclear rec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.05120v2-abstract-full').style.display = 'inline'; document.getElementById('1603.05120v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1603.05120v2-abstract-full" style="display: none;"> We present the results of a search for elastic scattering from galactic dark matter in the form of Weakly Interacting Massive Particles (WIMPs) in the 4-30 GeV/$c^2$ mass range. We make use of a 582 kg-day fiducial exposure from an array of 800 g Germanium bolometers equipped with a set of interleaved electrodes with full surface coverage. We searched specifically for $\sim 2.5-20$ keV nuclear recoils inside the detector fiducial volume. As an illustration the number of observed events in the search for 5 (resp. 20) GeV/$c^2$ WIMPs are 9 (resp. 4), compared to an expected background of 6.1 (resp. 1.4). A 90% CL limit of $4.3\times 10^{-40}$ cm$^2$ (resp. $9.4\times 10^{-44}$ cm$^2$) is set on the spin-independent WIMP-nucleon scattering cross-section for 5 (resp. 20) GeV/$c^2$ WIMPs. This result represents a 41-fold improvement with respect to the previous EDELWEISS-II low-mass WIMP search for 7 GeV/$c^2$ WIMPs. The derived constraint is in tension with hints of WIMP signals from some recent experiments, thus confirming results obtained with different detection techniques. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1603.05120v2-abstract-full').style.display = 'none'; document.getElementById('1603.05120v2-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, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 March, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Matches published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JCAP 05 (2016) 019 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.04989">arXiv:1601.04989</a> <span> [<a href="https://arxiv.org/pdf/1601.04989">pdf</a>, <a href="https://arxiv.org/ps/1601.04989">ps</a>, <a href="https://arxiv.org/format/1601.04989">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/10.1088/1742-6596/718/6/062008">10.1088/1742-6596/718/6/062008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> LUMINEU: a search for neutrinoless double beta decay based on ZnMoO$_4$ scintillating bolometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+A">A. Benoit</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+A">A. Benoit</a>, <a href="/search/physics?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/physics?searchtype=author&query=Blumer%2C+J">J. Blumer</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/physics?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/physics?searchtype=author&query=Coulter%2C+P">P. Coulter</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=de+Boissiere%2C+T">T. de Boissiere</a>, <a href="/search/physics?searchtype=author&query=Decourt%2C+R">R. Decourt</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Devoyon%2C+L">L. Devoyon</a>, <a href="/search/physics?searchtype=author&query=Drillien%2C+A+-">A. -A. Drillien</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</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="1601.04989v1-abstract-short" style="display: inline;"> The LUMINEU is designed to investigate the possibility to search for neutrinoless double beta decay in $^{100}$Mo by means of a large array of scintillating bolometers based on ZnMoO$_4$ crystals enriched in $^{100}$Mo. High energy resolution and relatively fast detectors, which are able to measure both the light and the heat generated upon the interaction of a particle in a crystal, are very prom… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.04989v1-abstract-full').style.display = 'inline'; document.getElementById('1601.04989v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.04989v1-abstract-full" style="display: none;"> The LUMINEU is designed to investigate the possibility to search for neutrinoless double beta decay in $^{100}$Mo by means of a large array of scintillating bolometers based on ZnMoO$_4$ crystals enriched in $^{100}$Mo. High energy resolution and relatively fast detectors, which are able to measure both the light and the heat generated upon the interaction of a particle in a crystal, are very promising for the recognition and rejection of background events. We present the LUMINEU concepts and the experimental results achieved aboveground and underground with large-mass natural and enriched crystals. The measured energy resolution, the $伪/尾$ discrimination power and the radioactive internal contamination are all within the specifications for the projected final LUMINEU sensitivity. Simulations and preliminary results confirm that the LUMINEU technology can reach zero background in the region of interest (around 3 MeV) with exposures of the order of hundreds kg$\times$years, setting the bases for a next generation $0\nu2尾$ decay experiment capable to explore the inverted hierarchy region of the neutrino mass pattern. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.04989v1-abstract-full').style.display = 'none'; document.getElementById('1601.04989v1-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 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures, submitted as proceedings of the TAUP 2015 conference</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.07393">arXiv:1512.07393</a> <span> [<a href="https://arxiv.org/pdf/1512.07393">pdf</a>, <a href="https://arxiv.org/ps/1512.07393">ps</a>, <a href="https://arxiv.org/format/1512.07393">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Proceedings of the third French-Ukrainian workshop on the instrumentation developments for HEP </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Alessio%2C+F">F. Alessio</a>, <a href="/search/physics?searchtype=author&query=Barsuk%2C+S+Y">S. Ya. Barsuk</a>, <a href="/search/physics?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/physics?searchtype=author&query=Bezshyyko%2C+O+A">O. A. Bezshyyko</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Chaikovska%2C+I">I. Chaikovska</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charles%2C+G">G. Charles</a>, <a href="/search/physics?searchtype=author&query=Chaus%2C+A">A. Chaus</a>, <a href="/search/physics?searchtype=author&query=Chehab%2C+R">R. Chehab</a>, <a href="/search/physics?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/physics?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=Delerue%2C+N">N. Delerue</a>, <a href="/search/physics?searchtype=author&query=Devoyon%2C+L">L. Devoyon</a>, <a href="/search/physics?searchtype=author&query=Drillien%2C+A+-">A. -A. Drillien</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Enss%2C+C">C. Enss</a>, <a href="/search/physics?searchtype=author&query=Fedorchuk%2C+O">O. Fedorchuk</a>, <a href="/search/physics?searchtype=author&query=Fleischmann%2C+A">A. Fleischmann</a>, <a href="/search/physics?searchtype=author&query=Gastaldo%2C+L">L. Gastaldo</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gray%2C+D">D. Gray</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Herve%2C+S">S. Herve</a> , et al. (48 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="1512.07393v1-abstract-short" style="display: inline;"> The reports collected in these proceedings have been presented in the third French-Ukrainian workshop on the instrumentation developments for high-energy physics held at LAL, Orsay on October 15-16. The workshop was conducted in the scope of the IDEATE International Associated Laboratory (LIA). Joint developments between French and Ukrainian laboratories and universities as well as new proposals h… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07393v1-abstract-full').style.display = 'inline'; document.getElementById('1512.07393v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.07393v1-abstract-full" style="display: none;"> The reports collected in these proceedings have been presented in the third French-Ukrainian workshop on the instrumentation developments for high-energy physics held at LAL, Orsay on October 15-16. The workshop was conducted in the scope of the IDEATE International Associated Laboratory (LIA). Joint developments between French and Ukrainian laboratories and universities as well as new proposals have been discussed. The main topics of the papers presented in the Proceedings are developments for accelerator and beam monitoring, detector developments, joint developments for large-scale high-energy and astroparticle physics projects, medical applications. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.07393v1-abstract-full').style.display = 'none'; document.getElementById('1512.07393v1-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 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">3rd French-Ukrainian workshop on the instrumentation developments for High Energy Physics, October 15-16, 2015, LAL, Orsay, France, 94 pages</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1512.04346">arXiv:1512.04346</a> <span> [<a href="https://arxiv.org/pdf/1512.04346">pdf</a>, <a href="https://arxiv.org/format/1512.04346">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"> Neutron spectroscopy with the Spherical Proportional Counter </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bougamont%2C+E">E. Bougamont</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi%2C+A">A. Dastgheibi</a>, <a href="/search/physics?searchtype=author&query=Derre%2C+J">J. Derre</a>, <a href="/search/physics?searchtype=author&query=Galan%2C+J">J. Galan</a>, <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Katsioulas%2C+I">I. Katsioulas</a>, <a href="/search/physics?searchtype=author&query=Jourde%2C+D">D. Jourde</a>, <a href="/search/physics?searchtype=author&query=Magnier%2C+P">P. Magnier</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Papaevangelou%2C+T">T. Papaevangelou</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Tsiledakis%2C+G">G. Tsiledakis</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1512.04346v3-abstract-short" style="display: inline;"> A novel large volume spherical proportional counter, recently developed, is used for neutron measurements. Gas mixtures of $N_{2}$ with $C_{2}H_{6}$ and pure $N_{2}$ are studied for thermal and fast neutron detection, providing a new way for the neutron spectroscopy. The neutrons are detected via the ${}^{14}N(n, p)C^{14}$ and ${}^{14}N(n, 伪)B^{11}$ reactions. Here we provide studies of the optimu… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.04346v3-abstract-full').style.display = 'inline'; document.getElementById('1512.04346v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1512.04346v3-abstract-full" style="display: none;"> A novel large volume spherical proportional counter, recently developed, is used for neutron measurements. Gas mixtures of $N_{2}$ with $C_{2}H_{6}$ and pure $N_{2}$ are studied for thermal and fast neutron detection, providing a new way for the neutron spectroscopy. The neutrons are detected via the ${}^{14}N(n, p)C^{14}$ and ${}^{14}N(n, 伪)B^{11}$ reactions. Here we provide studies of the optimum gas mixture, the gas pressure and the most appropriate high voltage supply on the sensor of the detector in order to achieve the maximum amplification and better resolution. The detector is tested for thermal and fast neutrons detection with a ${}^{252}Cf$ and a ${}^{241}Am-{}^{9}Be$ neutron source. The atmospheric neutrons are successfully measured from thermal up to several MeV, well separated from the cosmic ray background. A comparison of the spherical proportional counter with the current available neutron counters is also given. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1512.04346v3-abstract-full').style.display = 'none'; document.getElementById('1512.04346v3-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 September, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 14 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 10 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/1502.01161">arXiv:1502.01161</a> <span> [<a href="https://arxiv.org/pdf/1502.01161">pdf</a>, <a href="https://arxiv.org/ps/1502.01161">ps</a>, <a href="https://arxiv.org/format/1502.01161">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.nuclphysbps.2015.09.290">10.1016/j.nuclphysbps.2015.09.290 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Scintillating bolometers based on ZnMoO$_4$ and Zn$^{100}$MoO$_4$ crystals to search for 0$谓$2$尾$ decay of $^{100}$Mo (LUMINEU project): first tests at the Modane Underground Laboratory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Poda%2C+D+V">D. V. Poda</a>, <a href="/search/physics?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/physics?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/physics?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/physics?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/physics?searchtype=author&query=Bl%C3%BCmer%2C+J">J. Bl眉mer</a>, <a href="/search/physics?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/physics?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/physics?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/physics?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/physics?searchtype=author&query=Censier%2C+B">B. Censier</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/physics?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/physics?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/physics?searchtype=author&query=Coulter%2C+P">P. Coulter</a>, <a href="/search/physics?searchtype=author&query=Cox%2C+G+A">G. A. Cox</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=de+Boissi%C3%A8re%2C+T">T. de Boissi猫re</a>, <a href="/search/physics?searchtype=author&query=Decourt%2C+R">R. Decourt</a>, <a href="/search/physics?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</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="1502.01161v1-abstract-short" style="display: inline;"> The technology of scintillating bolometers based on zinc molybdate (ZnMoO$_4$) crystals is under development within the LUMINEU project to search for 0$谓$2$尾$ decay of $^{100}$Mo with the goal to set the basis for large scale experiments capable to explore the inverted hierarchy region of the neutrino mass pattern. Advanced ZnMoO$_4$ crystal scintillators with mass of $\sim$~0.3 kg were developed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.01161v1-abstract-full').style.display = 'inline'; document.getElementById('1502.01161v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1502.01161v1-abstract-full" style="display: none;"> The technology of scintillating bolometers based on zinc molybdate (ZnMoO$_4$) crystals is under development within the LUMINEU project to search for 0$谓$2$尾$ decay of $^{100}$Mo with the goal to set the basis for large scale experiments capable to explore the inverted hierarchy region of the neutrino mass pattern. Advanced ZnMoO$_4$ crystal scintillators with mass of $\sim$~0.3 kg were developed and Zn$^{100}$MoO$_4$ crystal from enriched $^{100}$Mo was produced for the first time by using the low-thermal-gradient Czochralski technique. One ZnMoO$_4$ scintillator and two samples (59 g and 63 g) cut from the enriched boule were tested aboveground at milli-Kelvin temperature as scintillating bolometers showing a high detection performance. The first results of the low background measurements with three ZnMoO$_4$ and two enriched detectors installed in the EDELWEISS set-up at the Modane Underground Laboratory (France) are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1502.01161v1-abstract-full').style.display = 'none'; document.getElementById('1502.01161v1-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 February, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">7 pages, 5 figures, Contribution to the proceedings of the 37th International Conference on High Energy Physics (ICHEP 2014), Valencia, Spain, 2-9 July 2014</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear and Particle Physics Proceedings 273-275 (2016) 1801-1806 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1412.0161">arXiv:1412.0161</a> <span> [<a href="https://arxiv.org/pdf/1412.0161">pdf</a>, <a href="https://arxiv.org/format/1412.0161">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 Methods for Astrophysics">astro-ph.IM</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"> Background optimization for a new spherical gas detector for very light WIMP detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Dastgheibi-Fard%2C+A">Ali Dastgheibi-Fard</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Gerbierb%2C+G">G. Gerbierb</a>, <a href="/search/physics?searchtype=author&query=Derree%2C+J">J. Derree</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Magnier%2C+P">P. Magnier</a>, <a href="/search/physics?searchtype=author&query=Jourde%2C+D">D. Jourde</a>, <a href="/search/physics?searchtype=author&query=Bougamont%2C+E+.">E . Bougamont</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X">X-F. Navick</a>, <a href="/search/physics?searchtype=author&query=Papaevangelou%2C+T">T. Papaevangelou</a>, <a href="/search/physics?searchtype=author&query=Galan%2C+J">J. Galan</a>, <a href="/search/physics?searchtype=author&query=Tsiledakis%2C+G">G. Tsiledakis</a>, <a href="/search/physics?searchtype=author&query=Piquemal%2C+F">F. Piquemal</a>, <a href="/search/physics?searchtype=author&query=Zampaolo%2C+M">M. Zampaolo</a>, <a href="/search/physics?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</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="1412.0161v1-abstract-short" style="display: inline;"> The Spherical gaseous detector (or Spherical Proportional Counter, SPC) is a novel type of par- ticle detector, with a broad range of applications. Its main features include a very low energy threshold independent of the volume (due to its very low capacitance), a good energy resolution, robustness and a single detection readout channel, in its simplest version. Applications range from radon emana… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.0161v1-abstract-full').style.display = 'inline'; document.getElementById('1412.0161v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1412.0161v1-abstract-full" style="display: none;"> The Spherical gaseous detector (or Spherical Proportional Counter, SPC) is a novel type of par- ticle detector, with a broad range of applications. Its main features include a very low energy threshold independent of the volume (due to its very low capacitance), a good energy resolution, robustness and a single detection readout channel, in its simplest version. Applications range from radon emanation gas monitoring, neutron flux and gamma counting and spectroscopy to dark matter searches, in particular low mass WIMPs and coherent neutrino scattering measure- ment. Laboratories interested in these various applications share expertise within the NEWS (New Experiments With Sphere) network. SEDINE, a low background prototype installed at underground site of Laboratoire Souterrain de Modane is currently being operated and aims at measuring events at very low energy threshold, around 100 eV. We will present the energy cali- bration with 37Ar, the surface background reduction, the measurement of detector background at sub-keV energies, and show anticipated sensitivities for light dark matter search. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1412.0161v1-abstract-full').style.display = 'none'; document.getElementById('1412.0161v1-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 November, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">5 pages, 3 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> PoS(TIPP2014)375 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1401.7902">arXiv:1401.7902</a> <span> [<a href="https://arxiv.org/pdf/1401.7902">pdf</a>, <a href="https://arxiv.org/format/1401.7902">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 Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> NEWS : a new spherical gas detector for very low mass WIMP detection </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Giomataris%2C+I">I. Giomataris</a>, <a href="/search/physics?searchtype=author&query=Magnier%2C+P">P. Magnier</a>, <a href="/search/physics?searchtype=author&query=Dastgheibi%2C+A">A. Dastgheibi</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Jourde%2C+D">D. Jourde</a>, <a href="/search/physics?searchtype=author&query=Bougamont%2C+E">E. Bougamont</a>, <a href="/search/physics?searchtype=author&query=Navick%2C+X+F">X. F. Navick</a>, <a href="/search/physics?searchtype=author&query=Papaevangelou%2C+T">T. Papaevangelou</a>, <a href="/search/physics?searchtype=author&query=Galan%2C+J">J. Galan</a>, <a href="/search/physics?searchtype=author&query=Derre%2C+J">J. Derre</a>, <a href="/search/physics?searchtype=author&query=Savvidis%2C+I">I. Savvidis</a>, <a href="/search/physics?searchtype=author&query=Tsiledakis%2C+G">G. Tsiledakis</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="1401.7902v1-abstract-short" style="display: inline;"> The main characteristics of a new concept of spherical gaseous detectors, with some details on its operation are first given. The very low energy threshold of such detector has led to investigations of its potential performance for dark matter particle searches, in particular low mass WIMP's : original methods for energy and fiducial volume calibration and background rejection are described and pr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.7902v1-abstract-full').style.display = 'inline'; document.getElementById('1401.7902v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1401.7902v1-abstract-full" style="display: none;"> The main characteristics of a new concept of spherical gaseous detectors, with some details on its operation are first given. The very low energy threshold of such detector has led to investigations of its potential performance for dark matter particle searches, in particular low mass WIMP's : original methods for energy and fiducial volume calibration and background rejection are described and preliminary results obtained with a low radioactivity prototype operated in Laboratoire Souterrain de Modane ("Frejus" lab) are presented. Typical expected sensitivities in cross section for low mass WIMP's are also shown, and other applications briefly discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1401.7902v1-abstract-full').style.display = 'none'; document.getElementById('1401.7902v1-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 January, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2014. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1312.3515">arXiv:1312.3515</a> <span> [<a href="https://arxiv.org/pdf/1312.3515">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/10.1051/epjconf/20136503001">10.1051/epjconf/20136503001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Purification of molybdenum oxide, growth and characterization of medium size zinc molybdate crystals for the LUMINEU program </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Shlegel%2C+V+N">V. N. Shlegel</a>, <a href="/search/physics?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/physics?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/physics?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/physics?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/physics?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/physics?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/physics?searchtype=author&query=Decourt%2C+R">R. Decourt</a>, <a href="/search/physics?searchtype=author&query=Degoda%2C+V+Y">V. Ya. Degoda</a>, <a href="/search/physics?searchtype=author&query=Devoyon%2C+L">L. Devoyon</a>, <a href="/search/physics?searchtype=author&query=Drillien%2C+A">A. Drillien</a>, <a href="/search/physics?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/physics?searchtype=author&query=Enss%2C+C">C. Enss</a>, <a href="/search/physics?searchtype=author&query=Fleischmann%2C+A">A. Fleischmann</a>, <a href="/search/physics?searchtype=author&query=Gastaldo%2C+L">L. Gastaldo</a>, <a href="/search/physics?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/physics?searchtype=author&query=Herve%2C+S">S. Herve</a>, <a href="/search/physics?searchtype=author&query=Ivanov%2C+I+M">I. M. Ivanov</a>, <a href="/search/physics?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/physics?searchtype=author&query=Kogut%2C+Y+P">Ya. P. Kogut</a>, <a href="/search/physics?searchtype=author&query=Koskas%2C+F">F. Koskas</a>, <a href="/search/physics?searchtype=author&query=Loidl%2C+M">M. Loidl</a>, <a href="/search/physics?searchtype=author&query=Magnier%2C+P">P. Magnier</a>, <a href="/search/physics?searchtype=author&query=Makarov%2C+E+P">E. P. Makarov</a> , et al. (23 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="1312.3515v1-abstract-short" style="display: inline;"> The LUMINEU program aims at performing a pilot experiment on neutrinoless double beta decay of 100Mo using radiopure ZnMoO4 crystals operated as scintillating bolometers. Growth of high quality radiopure crystals is a complex task, since there are no commercially available molybdenum compounds with the required levels of purity and radioactive contamination. This paper discusses approaches to puri… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.3515v1-abstract-full').style.display = 'inline'; document.getElementById('1312.3515v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1312.3515v1-abstract-full" style="display: none;"> The LUMINEU program aims at performing a pilot experiment on neutrinoless double beta decay of 100Mo using radiopure ZnMoO4 crystals operated as scintillating bolometers. Growth of high quality radiopure crystals is a complex task, since there are no commercially available molybdenum compounds with the required levels of purity and radioactive contamination. This paper discusses approaches to purify molybdenum and synthesize compound for high quality radiopure ZnMoO4 crystal growth. A combination of a double sublimation (with addition of zinc molybdate) with subsequent recrystallization in aqueous solutions (using zinc molybdate as a collector) was used. Zinc molybdate crystals up to 1.5 kg were grown by the low-thermal-gradient Czochralski technique, their optical, luminescent, diamagnetic, thermal and bolometric properties were tested. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1312.3515v1-abstract-full').style.display = 'none'; document.getElementById('1312.3515v1-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 December, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2013. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Contribution to Proc. of Int. Workshop on Radiopure Scintillators RPSCINT 2013, 17-20 September 2013, Kyiv, Ukraine; to be published in EPJ Web of Conferences; expected to be online in January 2014; 6 pages, 6 figures, and 3 tables</span> </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=Gros%2C+M&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Gros%2C+M&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Gros%2C+M&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 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