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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/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/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/2201.01639">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/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/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/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/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/1710.03459">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/1707.04308">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/1706.01070">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/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/1305.3628">arXiv:1305.3628</a> <span> [<a href="https://arxiv.org/pdf/1305.3628">pdf</a>, <a href="https://arxiv.org/ps/1305.3628">ps</a>, <a href="https://arxiv.org/format/1305.3628">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2013.05.004">10.1016/j.astropartphys.2013.05.004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Background studies for the EDELWEISS dark matter experiment </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=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=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=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=Couedo%2C+F">F. Couedo</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=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/physics?searchtype=author&query=Domange%2C+J">J. Domange</a>, <a href="/search/physics?searchtype=author&query=Drilien%2C+A+-">A. -A. Drilien</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=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=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a> , et al. (34 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="1305.3628v1-abstract-short" style="display: inline;"> The EDELWEISS-II collaboration has completed a direct search for WIMP dark matter using cryogenic Ge detectors (400 g each) and 384 kg$\times$days of effective exposure. A cross-section of $4.4 \times 10^{-8}$ pb is excluded at 90% C.L. for a WIMP mass of 85 GeV. The next phase, EDELWEISS-III, aims to probe spin-independent WIMP-nucleon cross-sections down to a few $\times10^{-9}$ pb. We present h… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.3628v1-abstract-full').style.display = 'inline'; document.getElementById('1305.3628v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1305.3628v1-abstract-full" style="display: none;"> The EDELWEISS-II collaboration has completed a direct search for WIMP dark matter using cryogenic Ge detectors (400 g each) and 384 kg$\times$days of effective exposure. A cross-section of $4.4 \times 10^{-8}$ pb is excluded at 90% C.L. for a WIMP mass of 85 GeV. The next phase, EDELWEISS-III, aims to probe spin-independent WIMP-nucleon cross-sections down to a few $\times10^{-9}$ pb. We present here the study of gamma and neutron background coming from radioactive decays in the set-up and shielding materials. We have carried out Monte Carlo simulations for the completed EDELWEISS-II setup with GEANT4 and normalised the expected background rates to the measured radioactivity levels (or their upper limits) of all materials and components. The expected gamma-ray event rate in EDELWEISS-II at 20-200 keV agrees with the observed rate of 82 events/kg/day within the uncertainties in the measured concentrations. The calculated neutron rate from radioactivity of 1.0-3.1 events (90% C.L.) at 20-200 keV in the EDELWEISS-II data together with the expected upper limit on the misidentified gamma-ray events ($\le0.9$), surface betas ($\le0.3$), and muon-induced neutrons ($\le0.7$), do not contradict 5 observed events in nuclear recoil band. We have then extended the simulation framework to the EDELWEISS-III configuration with 800 g crystals, better material purity and additional neutron shielding inside the cryostat. The gamma-ray and neutron backgrounds in 24 kg fiducial mass of EDELWEISS-III have been calculated as 14-44 events/kg/day and 0.7-1.4 events per year, respectively. The results of the background studies performed in the present work have helped to select better purity components and improve shielding in EDELWEISS-III to further reduce the expected rate of background events in the next phase of the experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1305.3628v1-abstract-full').style.display = 'none'; document.getElementById('1305.3628v1-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 May, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 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">15 pages, 9 figures, to be published in Astroparticle Physics</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1302.7112">arXiv:1302.7112</a> <span> [<a href="https://arxiv.org/pdf/1302.7112">pdf</a>, <a href="https://arxiv.org/ps/1302.7112">ps</a>, <a href="https://arxiv.org/format/1302.7112">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="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/10.1016/j.astropartphys.2013.01.014">10.1016/j.astropartphys.2013.01.014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Muon-induced background in the EDELWEISS dark matter search </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=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=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=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=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=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=Collin%2C+S">S. Collin</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=Crauste%2C+O">O. Crauste</a>, <a href="/search/physics?searchtype=author&query=Domange%2C+J">J. Domange</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=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. (33 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="1302.7112v1-abstract-short" style="display: inline;"> A dedicated analysis of the muon-induced background in the EDELWEISS dark matter search has been performed on a data set acquired in 2009 and 2010. The total muon flux underground in the Laboratoire Souterrain de Modane (LSM) was measured to be $桅_渭=(5.4\pm 0.2 ^{+0.5}_{-0.9})$\,muons/m$^2$/d. The modular design of the muon-veto system allows the reconstruction of the muon trajectory and hence the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7112v1-abstract-full').style.display = 'inline'; document.getElementById('1302.7112v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1302.7112v1-abstract-full" style="display: none;"> A dedicated analysis of the muon-induced background in the EDELWEISS dark matter search has been performed on a data set acquired in 2009 and 2010. The total muon flux underground in the Laboratoire Souterrain de Modane (LSM) was measured to be $桅_渭=(5.4\pm 0.2 ^{+0.5}_{-0.9})$\,muons/m$^2$/d. The modular design of the muon-veto system allows the reconstruction of the muon trajectory and hence the determination of the angular dependent muon flux in LSM. The results are in good agreement with both MC simulations and earlier measurements. Synchronization of the muon-veto system with the phonon and ionization signals of the Ge detector array allowed identification of muon-induced events. Rates for all muon-induced events $螕^渭=(0.172 \pm 0.012)\, \rm{evts}/(\rm{kg \cdot d})$ and of WIMP-like events $螕^{渭-n} = 0.008^{+0.005}_{-0.004}\, \rm{evts}/(\rm{kg \cdot d})$ were extracted. After vetoing, the remaining rate of accepted muon-induced neutrons in the EDELWEISS-II dark matter search was determined to be $螕^{渭-n}_{\rm irred} < 6\cdot 10^{-4} \, \rm{evts}/(\rm{kg \cdot d})$ at 90%\,C.L. Based on these results, the muon-induced background expectation for an anticipated exposure of 3000\,\kgd\ for EDELWEISS-3 is $N^{渭-n}_{3000 kg\cdot d} < 0.6$ events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1302.7112v1-abstract-full').style.display = 'none'; document.getElementById('1302.7112v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 February, 2013; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">21 pages, 16 figures, Accepted for publication in Astropart. Phys</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astroparticle Physics 44 (2013) 28-39 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1207.1815">arXiv:1207.1815</a> <span> [<a href="https://arxiv.org/pdf/1207.1815">pdf</a>, <a href="https://arxiv.org/ps/1207.1815">ps</a>, <a href="https://arxiv.org/format/1207.1815">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/10.1103/PhysRevD.86.051701">10.1103/PhysRevD.86.051701 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A search for low-mass WIMPs with EDELWEISS-II heat-and-ionization detectors </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=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=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=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=Cou%C3%ABdo%2C+F">F. Cou毛do</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=Domange%2C+J">J. Domange</a>, <a href="/search/physics?searchtype=author&query=Drillien%2C+A+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=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=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=Gerbier%2C+G">G. Gerbier</a>, <a href="/search/physics?searchtype=author&query=Gironnet%2C+J">J. Gironnet</a>, <a href="/search/physics?searchtype=author&query=Gros%2C+M">M. Gros</a> , et al. (30 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="1207.1815v2-abstract-short" style="display: inline;"> We report on a search for low-energy (E < 20 keV) WIMP-induced nuclear recoils using data collected in 2009 - 2010 by EDELWEISS from four germanium detectors equipped with thermal sensors and an electrode design (ID) which allows to efficiently reject several sources of background. The data indicate no evidence for an exponential distribution of low-energy nuclear recoils that could be attributed… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.1815v2-abstract-full').style.display = 'inline'; document.getElementById('1207.1815v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1207.1815v2-abstract-full" style="display: none;"> We report on a search for low-energy (E < 20 keV) WIMP-induced nuclear recoils using data collected in 2009 - 2010 by EDELWEISS from four germanium detectors equipped with thermal sensors and an electrode design (ID) which allows to efficiently reject several sources of background. The data indicate no evidence for an exponential distribution of low-energy nuclear recoils that could be attributed to WIMP elastic scattering after an exposure of 113 kg.d. For WIMPs of mass 10 GeV, the observation of one event in the WIMP search region results in a 90% CL limit of 1.0x10^-5 pb on the spin-independent WIMP-nucleon scattering cross-section, which constrains the parameter space associated with the findings reported by the CoGeNT, DAMA and CRESST experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1207.1815v2-abstract-full').style.display = 'none'; document.getElementById('1207.1815v2-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 September, 2012; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 July, 2012; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2012. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">PRD rapid communication accepted</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 86, 051701(R) (2012) </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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