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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/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charrier%2C+A">A. Charrier</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F">F. Danevich</a>, <a href="/search/?searchtype=author&query=De+Combarieu%2C+M">M. De Combarieu</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gomez%2C+H">H. Gomez</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Lefevre%2C+M">M. Lefevre</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?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/2103.07181">arXiv:2103.07181</a> <span> [<a href="https://arxiv.org/pdf/2103.07181">pdf</a>, <a href="https://arxiv.org/format/2103.07181">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0050124">10.1063/5.0050124 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Phonon-mediated crystal detectors with metallic film coating capable of rejecting $伪$ and $尾$ events induced by surface radioactivity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Guerard%2C+E">E. Guerard</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=Madhukuttan%2C+M">M. Madhukuttan</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Mariam%2C+R">R. Mariam</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</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="2103.07181v3-abstract-short" style="display: inline;"> Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.07181v3-abstract-full').style.display = 'inline'; document.getElementById('2103.07181v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.07181v3-abstract-full" style="display: none;"> Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and surface $尾$ and $伪$ events can be achieved by coating a crystal face with a thin metallic film, either continuous or in the form of a grid. The coating affects the phonon energy down-conversion cascade that follows the particle interaction, leading to a modified signal shape for close-to-film events. An efficient identification of surface events was demonstrated with detectors based on a rectangular $20 \times 20 \times 10$ mm$^3$ Li$_2$MoO$_4$ crystal coated with a Pd normal-metal film (10~nm thick) and with Al-Pd superconductive bi-layers (100~nm-10~nm thick) on a $20 \times 20$ mm$^2$ face. Discrimination capabilities were tested with $^{238}$U sources emitting both $伪$ and $尾$ particles. Surface events are identified for energy depositions down to millimeter-scale depths from the coated surface. With this technology, a substantial improvement of the background figure can be achieved in experiments searching for neutrinoless double-beta decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.07181v3-abstract-full').style.display = 'none'; document.getElementById('2103.07181v3-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Appl. Phys. Lett. 118 (2021) 184105 </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/?searchtype=author&query=The+CUPID+Interest+Group"> The CUPID Interest Group</a>, <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?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/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L">L. Berg猫</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?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/2011.13243">arXiv:2011.13243</a> <span> [<a href="https://arxiv.org/pdf/2011.13243">pdf</a>, <a href="https://arxiv.org/format/2011.13243">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> </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.126.181802">10.1103/PhysRevLett.126.181802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Limit for Neutrinoless Double-Beta Decay of $^{100}$Mo from the CUPID-Mo Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?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="2011.13243v2-abstract-short" style="display: inline;"> The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0谓尾尾$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0谓尾尾$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13243v2-abstract-full').style.display = 'inline'; document.getElementById('2011.13243v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13243v2-abstract-full" style="display: none;"> The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0谓尾尾$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0谓尾尾$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physics data), no event in the region of interest and hence no evidence for $0谓尾尾$ is observed. We report a new limit on the half-life of $0谓尾尾$ decay in $^{100}$Mo of $T_{1/2} > 1.5 \times 10^{24}\,$yr at 90 % C.I. The limit corresponds to an effective Majorana neutrino mass $\langle m_{尾尾} \rangle$ $<$ (0.31--0.54)$\,$eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13243v2-abstract-full').style.display = 'none'; document.getElementById('2011.13243v2-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 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. Lett. 126, 181802 (2021) </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/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?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/?searchtype=author&query=Huang%2C+R">R. Huang</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?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/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/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?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/?searchtype=author&query=Schmidt%2C+B">B. Schmidt</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?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/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Briere%2C+M">M. Briere</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?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/1906.10233">arXiv:1906.10233</a> <span> [<a href="https://arxiv.org/pdf/1906.10233">pdf</a>, <a href="https://arxiv.org/format/1906.10233">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/10.1007/JHEP01(2020)018">10.1007/JHEP01(2020)018 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The $0\nu2尾$-decay CROSS experiment: preliminary results and prospects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bri%C3%A8re%2C+M">M. Bri猫re</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dosme%2C+N">N. Dosme</a>, <a href="/search/?searchtype=author&query=Doullet%2C+D">D. Doullet</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Guerard%2C+E">E. Guerard</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Legay%2C+E">E. Legay</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</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="1906.10233v2-abstract-short" style="display: inline;"> Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.10233v2-abstract-full').style.display = 'inline'; document.getElementById('1906.10233v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1906.10233v2-abstract-full" style="display: none;"> Neutrinoless double-beta decay is a key process in particle physics. Its experimental investigation is the only viable method that can establish the Majorana nature of neutrinos, providing at the same time a sensitive inclusive test of lepton number violation. CROSS (Cryogenic Rare-event Observatory with Surface Sensitivity) aims at developing and testing a new bolometric technology to be applied to future large-scale experiments searching for neutrinoless double-beta decay of the promising nuclei $^{100}$Mo and $^{130}$Te. The limiting factor in large-scale bolometric searches for this rare process is the background induced by surface radioactive contamination, as shown by the results of the CUORE experiment. The basic concept of CROSS consists of rejecting this challenging background component by pulse-shape discrimination, assisted by a proper coating of the faces of the crystal containing the isotope of interest and serving as energy absorber of the bolometric detector. In this paper, we demonstrate that ultra-pure superconductive Al films deposited on the crystal surfaces act successfully as pulse-shape modifiers, both with fast and slow phonon sensors. Rejection factors higher than 99.9% of $伪$ surface radioactivity have been demonstrated in a series of prototypes based on crystals of Li$_2$MoO$_4$ and TeO$_2$. We have also shown that point-like energy depositions can be identified up to a distance of $\sim 1$ mm from the coated surface. The present program envisions an intermediate experiment to be installed underground in the Canfranc laboratory (Spain) in a CROSS-dedicated facility. This experiment, comprising $\sim 3\times 10^{25}$ nuclei of $^{100}$Mo, will be a general test of the CROSS technology as well as a worldwide competitive search for neutrinoless double-beta decay, with sensitivity to the effective Majorana mass down to 70 meV in the most favorable conditions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.10233v2-abstract-full').style.display = 'none'; document.getElementById('1906.10233v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. High Energ. Phys. (2020) 2020: 18 </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/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Nones%2C+C">C. Nones</a>, <a href="/search/?searchtype=author&query=Novati%2C+V">V. Novati</a>, <a href="/search/?searchtype=author&query=Olivieri%2C+E">E. Olivieri</a>, <a href="/search/?searchtype=author&query=Paul%2C+B">B. Paul</a>, <a href="/search/?searchtype=author&query=Poda%2C+D+V">D. V. Poda</a>, <a href="/search/?searchtype=author&query=Redon%2C+T">T. Redon</a>, <a href="/search/?searchtype=author&query=Siebenborn%2C+B">B. Siebenborn</a>, <a href="/search/?searchtype=author&query=Zolotarova%2C+A+S">A. S. Zolotarova</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?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/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/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Beeman%2C+J+W">J. W. Beeman</a>, <a href="/search/?searchtype=author&query=Bekker%2C+T+B">T. B. Bekker</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bergmann%2C+T">T. Bergmann</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boiko%2C+R+S">R. S. Boiko</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V">V. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=Chernyak%2C+D+M">D. M. Chernyak</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Coron%2C+N">N. Coron</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?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/0805.4727">arXiv:0805.4727</a> <span> [<a href="https://arxiv.org/pdf/0805.4727">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atomic Physics">physics.atom-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="General Relativity and Quantum Cosmology">gr-qc</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/1.2977857">10.1063/1.2977857 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Formation Of A Cold Antihydrogen Beam in AEGIS For Gravity Measurements </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Testera%2C+G">G. Testera</a>, <a href="/search/?searchtype=author&query=Belov%2C+A+S">A. S. Belov</a>, <a href="/search/?searchtype=author&query=Bonomi%2C+G">G. Bonomi</a>, <a href="/search/?searchtype=author&query=Boscolo%2C+I">I. Boscolo</a>, <a href="/search/?searchtype=author&query=Brambilla%2C+N">N. Brambilla</a>, <a href="/search/?searchtype=author&query=Brusa%2C+R+S">R. S. Brusa</a>, <a href="/search/?searchtype=author&query=Byakov%2C+V+M">V. M. Byakov</a>, <a href="/search/?searchtype=author&query=Cabaret%2C+L">L. Cabaret</a>, <a href="/search/?searchtype=author&query=Canali%2C+C">C. Canali</a>, <a href="/search/?searchtype=author&query=Carraro%2C+C">C. Carraro</a>, <a href="/search/?searchtype=author&query=Castelli%2C+F">F. Castelli</a>, <a href="/search/?searchtype=author&query=Cialdi%2C+S">S. Cialdi</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Comparat%2C+D">D. Comparat</a>, <a href="/search/?searchtype=author&query=Consolati%2C+G">G. Consolati</a>, <a href="/search/?searchtype=author&query=Djourelov%2C+N">N. Djourelov</a>, <a href="/search/?searchtype=author&query=Doser%2C+M">M. Doser</a>, <a href="/search/?searchtype=author&query=Drobychev%2C+G">G. Drobychev</a>, <a href="/search/?searchtype=author&query=Dupasquier%2C+A">A. Dupasquier</a>, <a href="/search/?searchtype=author&query=Fabris%2C+D">D. Fabris</a>, <a href="/search/?searchtype=author&query=Ferragut%2C+R">R. Ferragut</a>, <a href="/search/?searchtype=author&query=Ferrari%2C+G">G. Ferrari</a>, <a href="/search/?searchtype=author&query=Fischer%2C+A">A. Fischer</a>, <a href="/search/?searchtype=author&query=Fontana%2C+A">A. Fontana</a>, <a href="/search/?searchtype=author&query=Forget%2C+P">P. Forget</a> , et al. (40 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="0805.4727v1-abstract-short" style="display: inline;"> The formation of the antihydrogen beam in the AEGIS experiment through the use of inhomogeneous electric fields is discussed and simulation results including the geometry of the apparatus and realistic hypothesis about the antihydrogen initial conditions are shown. The resulting velocity distribution matches the requirements of the gravity experiment. In particular it is shown that the inhomogen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0805.4727v1-abstract-full').style.display = 'inline'; document.getElementById('0805.4727v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="0805.4727v1-abstract-full" style="display: none;"> The formation of the antihydrogen beam in the AEGIS experiment through the use of inhomogeneous electric fields is discussed and simulation results including the geometry of the apparatus and realistic hypothesis about the antihydrogen initial conditions are shown. The resulting velocity distribution matches the requirements of the gravity experiment. In particular it is shown that the inhomogeneous electric fields provide radial cooling of the beam during the acceleration. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('0805.4727v1-abstract-full').style.display = 'none'; document.getElementById('0805.4727v1-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 May, 2008; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2008. </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">Invited talk at Pbar08 - Workshop on Cold Antimatter Plasmas and Application to Fundamental Physics, Okinawa, Japan, 2008</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> AIP Conf.Proc.1037:5-15,2008 </p> 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