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breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L&start=50" class="pagination-next" >Next </a> <ul class="pagination-list"> <li> <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L&start=0" class="pagination-link is-current" aria-label="Goto page 1">1 </a> </li> <li> <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L&start=50" class="pagination-link " aria-label="Page 2" aria-current="page">2 </a> </li> <li> <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L&start=100" class="pagination-link " aria-label="Page 3" aria-current="page">3 </a> </li> </ul> </nav> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2411.02944">arXiv:2411.02944</a> <span> [<a href="https://arxiv.org/pdf/2411.02944">pdf</a>, <a href="https://arxiv.org/format/2411.02944">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Precise $^{113}$Cd $尾$ decay spectral shape measurement and interpretation in terms of possible $g_A$ quenching </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Bandac%2C+I">I. Bandac</a>, <a href="/search/?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Helis%2C+D+L">D. L. Helis</a>, <a href="/search/?searchtype=author&query=Imbert%2C+L">L. Imbert</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Kostensalo%2C+J">J. Kostensalo</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</a>, <a href="/search/?searchtype=author&query=Martinez%2C+M">M. Martinez</a>, <a href="/search/?searchtype=author&query=Nones%2C+C">C. Nones</a>, <a href="/search/?searchtype=author&query=Olivieri%2C+E">E. Olivieri</a>, <a href="/search/?searchtype=author&query=de+Sol%C3%B3rzano%2C+A+O">A. Ortiz de Sol贸rzano</a> , et al. (7 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="2411.02944v1-abstract-short" style="display: inline;"> Highly forbidden $尾$ decays provide a sensitive test to nuclear models in a regime in which the decay goes through high spin-multipole states, similar to the neutrinoless double-$尾$ decay process. There are only 3 nuclei ($^{50}$V, $^{113}$Cd, $^{115}$In) which undergo a $4^{\rm th}$ forbidden non-unique $尾$ decay. In this work, we compare the experimental $^{113}$Cd spectrum to theoretical spectr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02944v1-abstract-full').style.display = 'inline'; document.getElementById('2411.02944v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2411.02944v1-abstract-full" style="display: none;"> Highly forbidden $尾$ decays provide a sensitive test to nuclear models in a regime in which the decay goes through high spin-multipole states, similar to the neutrinoless double-$尾$ decay process. There are only 3 nuclei ($^{50}$V, $^{113}$Cd, $^{115}$In) which undergo a $4^{\rm th}$ forbidden non-unique $尾$ decay. In this work, we compare the experimental $^{113}$Cd spectrum to theoretical spectral shapes in the framework of the spectrum-shape method. We measured with high precision, with the lowest energy threshold and the best energy resolution ever, the $尾$ spectrum of $^{113}$Cd embedded in a 0.43 kg CdWO$_4$ crystal, operated over 26 days as a bolometer at low temperature in the Canfranc underground laboratory (Spain). We performed a Bayesian fit of the experimental data to three nuclear models (IBFM-2, MQPM and NSM) allowing the reconstruction of the spectral shape as well as the half-life. The fit has two free parameters, one of which is the effective weak axial-vector coupling constant, $g_A^{\text{eff}}$, which resulted in $g_A^{\text{eff}}$ between 1.0 and 1.2, compatible with a possible quenching. Based on the fit, we measured the half-life of the $^{113}$Cd $尾$ decay including systematic uncertainties as $7.73^{+0.60}_{-0.57} \times 10^{15}$ yr, in agreement with the previous experiments. These results represent a significant step towards a better understanding of low-energy nuclear processes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2411.02944v1-abstract-full').style.display = 'none'; document.getElementById('2411.02944v1-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, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication by 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/2406.12643">arXiv:2406.12643</a> <span> [<a href="https://arxiv.org/pdf/2406.12643">pdf</a>, <a href="https://arxiv.org/format/2406.12643">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Waveshape of THz radiation produced by two-color laser-induced air plasmas </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Stathopulos%2C+A">Alexandre Stathopulos</a>, <a href="/search/?searchtype=author&query=Skupin%2C+S">Stefan Skupin</a>, <a href="/search/?searchtype=author&query=Zhou%2C+B">Binbin Zhou</a>, <a href="/search/?searchtype=author&query=Jepsen%2C+P+U">Peter U. Jepsen</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">Luc Berg茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.12643v1-abstract-short" style="display: inline;"> The spatial and spectral distributions of terahertz (THz) pulses emitted by two-color air plasmas are theoretically investigated for focused laser pulses and in the filamentation regime. We derive a so-called ''augmented'' conical emission model, which, similarly to the one originally proposed by You et al.\ [Phys.\ Rev.\ Lett.\ {\bf 109}, 183902 (2012)], involves phase matching between laser harm… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12643v1-abstract-full').style.display = 'inline'; document.getElementById('2406.12643v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.12643v1-abstract-full" style="display: none;"> The spatial and spectral distributions of terahertz (THz) pulses emitted by two-color air plasmas are theoretically investigated for focused laser pulses and in the filamentation regime. We derive a so-called ''augmented'' conical emission model, which, similarly to the one originally proposed by You et al.\ [Phys.\ Rev.\ Lett.\ {\bf 109}, 183902 (2012)], involves phase matching between laser harmonics along the plasma channel, the plasma density and length, and the emitted frequency as key parameters. Our augmented model, however, treats envelope effects and accounts for transverse variations of both plasma- and Kerr-driven potential THz emitters. We highlight the importance of the characteristic spatio-spectral distributions of these two conversion mechanisms in the expression of the angular radiated power. The results of our model are successfully compared with data provided by a comprehensive, fully space and time-resolved unidirectional solver. Importantly, these numerical simulations clear up the effective plasma length along which THz emission develops, compared with the dephasing length along which the laser fundamental and second harmonic become out-of-phase. The impact of common optical aberrations, such as sphericity, astigmatism, and coma, on the THz generation is also investigated. Aberrations are shown to generally decrease the laser-to-THz conversion efficiency and potentially induce spatial asymmetries and narrowing in the THz spectra. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.12643v1-abstract-full').style.display = 'none'; document.getElementById('2406.12643v1-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> 18 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">22 pages, 18 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/2406.03854">arXiv:2406.03854</a> <span> [<a href="https://arxiv.org/pdf/2406.03854">pdf</a>, <a href="https://arxiv.org/format/2406.03854">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> </div> </div> <p class="title is-5 mathjax"> Universal properties of locally generated terahertz waveforms from polarization-controlled two- and multi-color ionizing fields </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Alirezaee%2C+H">H. Alirezaee</a>, <a href="/search/?searchtype=author&query=Skupin%2C+S">S. Skupin</a>, <a href="/search/?searchtype=author&query=Vaicaitis%2C+V">V. Vaicaitis</a>, <a href="/search/?searchtype=author&query=Demircan%2C+A">A. Demircan</a>, <a href="/search/?searchtype=author&query=Babushkin%2C+I">I. Babushkin</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">Luc Berg茅</a>, <a href="/search/?searchtype=author&query=Morgner%2C+U">U. Morgner</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2406.03854v1-abstract-short" style="display: inline;"> The polarization states of terahertz (THz) radiation generated in a photo-ionized gas driven by strong two- or multi-frequency fields with locally controlled polarization are studied. We reveal a universal property of the resulting THz waveforms: the ellipticity of their polarization state increases linearly with the frequency. This ``linear chirp of ellipticity'' makes plasma-based THz generation… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03854v1-abstract-full').style.display = 'inline'; document.getElementById('2406.03854v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.03854v1-abstract-full" style="display: none;"> The polarization states of terahertz (THz) radiation generated in a photo-ionized gas driven by strong two- or multi-frequency fields with locally controlled polarization are studied. We reveal a universal property of the resulting THz waveforms: the ellipticity of their polarization state increases linearly with the frequency. This ``linear chirp of ellipticity'' makes plasma-based THz generation unique among other THz sources. However, it also puts some constraints on the polarization properties of the generated THz radiation. We derive a general expression for the THz ellipticity and demonstrate how the polarization states of the generated THz waveforms can be manipulated and controlled by the polarization of the pump pulses. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.03854v1-abstract-full').style.display = 'none'; document.getElementById('2406.03854v1-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 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2406.01444">arXiv:2406.01444</a> <span> [<a href="https://arxiv.org/pdf/2406.01444">pdf</a>, <a href="https://arxiv.org/format/2406.01444">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Development of large-volume $^{130}$TeO$_2$ bolometers for the CROSS $2尾$ decay search experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berest%2C+V">V. Berest</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferella%2C+F">F. Ferella</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Gallas%2C+A">A. Gallas</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">P. Gras</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Imbert%2C+L">L. Imbert</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</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="2406.01444v2-abstract-short" style="display: inline;"> We report on the development of thermal detectors based on large-size tellurium dioxide crystals (45x45x45 mm), containing tellurium enriched in $^{130}$Te to about 91%, for the CROSS double-beta decay experiment. A powder used for the crystals growth was additionally purified by the directional solidification method, resulting in the reduction of the concentration of impurities by a factor 10, to… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01444v2-abstract-full').style.display = 'inline'; document.getElementById('2406.01444v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2406.01444v2-abstract-full" style="display: none;"> We report on the development of thermal detectors based on large-size tellurium dioxide crystals (45x45x45 mm), containing tellurium enriched in $^{130}$Te to about 91%, for the CROSS double-beta decay experiment. A powder used for the crystals growth was additionally purified by the directional solidification method, resulting in the reduction of the concentration of impurities by a factor 10, to a few ppm of the total concentration of residual elements (the main impurity is Fe). The purest part of the ingot (the first ~200 mm, about 80% of the total length of the cylindrical part of the ingot) was determined by scanning segregation profiles of impurities and used for the $^{130}$TeO$_2$ powder production with no evidence of re-contamination. The crystal growth was verified with precursors produced from powder with natural Te isotopic composition, and two small-size (20x20x10 mm) samples were tested at a sea-level laboratory showing high bolometric and spectrometric performance together with acceptable $^{210}$Po content (below 10 mBq/kg). This growth method was then applied for the production of six large cubic $^{130}$TeO$_2$ crystals and 4 of them were taken randomly to be characterized at the Canfranc underground laboratory, in the CROSS-dedicated low-background cryogenic facility. Two $^{130}$TeO$_2$ samples were coated with a thin, $O$(100 nm), metal film in form of Al layer (on 4 sides) or AlPd grid (on a single side) to investigate the possibility to tag surface events by pulse-shape discrimination. Similarly to the small natural precursors, large-volume $^{130}$TeO$_2$ bolometers show high performance and even better internal purity ($^{210}$Po activity $\sim$ 1 mBq/kg, while activities of $^{228}$Th and $^{226}$Ra are below 0.01 mBq/kg), satisfying requirements for the CROSS and, potentially, next-generation experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2406.01444v2-abstract-full').style.display = 'none'; document.getElementById('2406.01444v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 3 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to JINST; 22 pages, 11 figures, 4 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.18980">arXiv:2405.18980</a> <span> [<a href="https://arxiv.org/pdf/2405.18980">pdf</a>, <a href="https://arxiv.org/format/2405.18980">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"> A novel mechanical design of a bolometric array for the CROSS double-beta decay experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Auguste%2C+D">D. Auguste</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berest%2C+V">V. Berest</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Gallas%2C+A">A. Gallas</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">P. Gras</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Imbert%2C+L">L. Imbert</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</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="2405.18980v2-abstract-short" style="display: inline;"> The CROSS experiment will search for neutrinoless double-beta decay using a specific mechanical structure to hold thermal detectors. The design of the structure was tuned to minimize the background contribution, keeping an optimal detector performance. A single module of the structure holds two scintillating bolometers (with a crystal size of 45x45x45 mm and a Ge slab facing the crystal's upper si… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.18980v2-abstract-full').style.display = 'inline'; document.getElementById('2405.18980v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.18980v2-abstract-full" style="display: none;"> The CROSS experiment will search for neutrinoless double-beta decay using a specific mechanical structure to hold thermal detectors. The design of the structure was tuned to minimize the background contribution, keeping an optimal detector performance. A single module of the structure holds two scintillating bolometers (with a crystal size of 45x45x45 mm and a Ge slab facing the crystal's upper side) in the Cu frame, allowing for a modular construction of a large-scale array. Two designs are released: the initial $Thick$ version contains around 15% of Cu over the crystal mass (lithium molybdate, LMO), while this ratio is reduced to ~6% in a finer ($Slim$) design. Both designs were tested extensively at aboveground (IJCLab, France) and underground (LSC, Spain) laboratories. In particular, at LSC we used a pulse-tube-based CROSS facility to operate a 6-crystal array of LMOs enriched/depleted in $^{100}$Mo. The tested LMOs show high spectrometric performance in both designs; notably, the measured energy resolution is 5--7 keV FWHM at 2615 keV $纬$s, nearby the Q-value of $^{100}$Mo (3034 keV). Due to the absence of a reflective cavity around LMOs, a low scintillation signal is detected by Ge bolometers: ~0.3 keV (150 photons) for 1-MeV $纬$($尾$) LMO-event. Despite that, an acceptable separation between $伪$ and $纬$($尾$) events is achieved with most devices. The highest efficiency is reached with light detectors in the $Thick$ design thanks to a lower baseline noise width (0.05--0.09 keV RMS) when compared to that obtained in the $Slim$ version (0.10--0.35 keV RMS). Given the pivotal role of bolometric photodetectors for particle identification and random coincidences rejection, we will use the structure here described with upgraded light detectors, featuring thermal signal amplification via the Neganov-Trofimov-Luke effect, as also demonstrated in the present work. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.18980v2-abstract-full').style.display = 'none'; document.getElementById('2405.18980v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to JINST; 31 pages, 16 figures, 5 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/2405.10766">arXiv:2405.10766</a> <span> [<a href="https://arxiv.org/pdf/2405.10766">pdf</a>, <a href="https://arxiv.org/format/2405.10766">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Searching for Beyond the Standard Model physics using the improved description of $^{100}$Mo $2谓尾尾$ decay spectral shape with CUPID-Mo </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Celi%2C+E">E. Celi</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Gironi%2C+L">L. Gironi</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a> , et al. (58 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.10766v2-abstract-short" style="display: inline;"> The current experiments searching for neutrinoless double-$尾$ ($0谓尾尾$) decay also collect large statistics of Standard Model allowed two-neutrino double-$尾$ ($2谓尾尾$) decay events. These can be used to search for Beyond Standard Model (BSM) physics via $2谓尾尾$ decay spectral distortions. $^{100}$Mo has a natural advantage due to its relatively short half-life, allowing higher $2谓尾尾$ decay statistics… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.10766v2-abstract-full').style.display = 'inline'; document.getElementById('2405.10766v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.10766v2-abstract-full" style="display: none;"> The current experiments searching for neutrinoless double-$尾$ ($0谓尾尾$) decay also collect large statistics of Standard Model allowed two-neutrino double-$尾$ ($2谓尾尾$) decay events. These can be used to search for Beyond Standard Model (BSM) physics via $2谓尾尾$ decay spectral distortions. $^{100}$Mo has a natural advantage due to its relatively short half-life, allowing higher $2谓尾尾$ decay statistics at equal exposures compared to the other isotopes. We demonstrate the potential of the dual read-out bolometric technique exploiting a $^{100}$Mo exposure of 1.47 kg $\times$ y, acquired in the CUPID-Mo experiment at the Modane underground laboratory (France). We set limits on $0谓尾尾$ decays with the emission of one or more Majorons, on $2谓尾尾$ decay with Lorentz violation, and $2谓尾尾$ decay with a sterile neutrino emission. In this analysis, we investigate the systematic uncertainty induced by modeling the $2谓尾尾$ decay spectral shape parameterized through an improved model, an effect never considered before. This work motivates searches for BSM processes in the upcoming CUPID experiment, which will collect the largest amount of $2谓尾尾$ decay events among the next-generation experiments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.10766v2-abstract-full').style.display = 'none'; document.getElementById('2405.10766v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 August, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2402.12262">arXiv:2402.12262</a> <span> [<a href="https://arxiv.org/pdf/2402.12262">pdf</a>, <a href="https://arxiv.org/format/2402.12262">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> BINGO innovative assembly for background reduction in bolometric $0谓尾尾$ experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Berest%2C+V">V. Berest</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gomez%2C+H">H. Gomez</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a> , et al. (23 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2402.12262v2-abstract-short" style="display: inline;"> BINGO is a project aiming to set the grounds for large-scale bolometric neutrinoless double-beta-decay experiments capable of investigating the effective Majorana neutrino mass at a few meV level. It focuses on developing innovative technologies (a detector assembly, cryogenic photodetectors and active veto) to achieve a very low background index, of the order of $10^{-5}$ counts/(keV kg yr) in th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12262v2-abstract-full').style.display = 'inline'; document.getElementById('2402.12262v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2402.12262v2-abstract-full" style="display: none;"> BINGO is a project aiming to set the grounds for large-scale bolometric neutrinoless double-beta-decay experiments capable of investigating the effective Majorana neutrino mass at a few meV level. It focuses on developing innovative technologies (a detector assembly, cryogenic photodetectors and active veto) to achieve a very low background index, of the order of $10^{-5}$ counts/(keV kg yr) in the region of interest. The BINGO demonstrator, called MINI-BINGO, is designed to investigate the promising double-beta-decay isotopes $^{100}$Mo and $^{130}$Te and it will be composed of Li$_2$MoO$_4$ and TeO$_2$ crystals coupled to bolometric light detectors and surrounded by a Bi$_4$Ge$_3$O$_{12}$-based veto. This will allow us to reject a significant background in bolometers caused by surface contamination from $伪$-active radionuclides by means of light yield selection and to mitigate other sources of background, such as surface contamination from $尾$-active radionuclides, external $纬$ radioactivity, and pile-up due to random coincidence of background events. This paper describes an R\&D program towards the BINGO goals, particularly focusing on the development of an innovative assembly designed to reduce the passive materials within the line of sight of the detectors, which is expected to be a dominant source of background in next-generation bolometric experiments. We present the performance of two prototype modules -- housing four cubic (4.5-cm side) Li$_2$MoO$_4$ crystals in total -- operated in the Canfranc underground laboratory in Spain within a facility developed for the CROSS double-beta-decay experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2402.12262v2-abstract-full').style.display = 'none'; document.getElementById('2402.12262v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 19 February, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to Nucl. Instr. Meth. A; 28 pages, 11 figures, 4 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.08493">arXiv:2401.08493</a> <span> [<a href="https://arxiv.org/pdf/2401.08493">pdf</a>, <a href="https://arxiv.org/format/2401.08493">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> </div> </div> <p class="title is-5 mathjax"> THz to far-infrared spectra of the known crystal polymorphs of Phenylalanine </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Niehaus%2C+T+A">Thomas A. Niehaus</a>, <a href="/search/?searchtype=author&query=Prost%2C+E">Emilien Prost</a>, <a href="/search/?searchtype=author&query=Loriot%2C+V">Vincent Loriot</a>, <a href="/search/?searchtype=author&query=L%C3%A9pine%2C+F">Franck L茅pine</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">Luc Berg茅</a>, <a href="/search/?searchtype=author&query=Skupin%2C+S">Stefan Skupin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.08493v1-abstract-short" style="display: inline;"> There is renewed interest in the structure of the essential amino acid Phenylalanine in the solid state. Three new polymorphs were found in the years 2012 to 2014. Here, we investigate the structure, stability, and energetical ordering of these phases using first-principles simulations at the level of Density Functional Theory incorporating van-der-Waals interactions. Two of the distinct crystal f… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.08493v1-abstract-full').style.display = 'inline'; document.getElementById('2401.08493v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.08493v1-abstract-full" style="display: none;"> There is renewed interest in the structure of the essential amino acid Phenylalanine in the solid state. Three new polymorphs were found in the years 2012 to 2014. Here, we investigate the structure, stability, and energetical ordering of these phases using first-principles simulations at the level of Density Functional Theory incorporating van-der-Waals interactions. Two of the distinct crystal forms are found to be structurally similar and energetically very close after vibrational free energy corrections have been taken into account. Infrared absorption spectra are likewise calculated and compared to experimental measurements. By combining measurements obtained with a commercial Fourier Transform Infra-Red spectrometer and a homemade air-photonics-based THz Time Domain spectrometer, we could carry out this comparison in the vibrational frequency region from 1 to 40~THz. The excellent agreement of the line positions and the established energy ranking allow us to identify the most stable polymorph of Phenylalanine. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.08493v1-abstract-full').style.display = 'none'; document.getElementById('2401.08493v1-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 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.02779">arXiv:2311.02779</a> <span> [<a href="https://arxiv.org/pdf/2311.02779">pdf</a>, <a href="https://arxiv.org/format/2311.02779">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> </div> </div> <p class="title is-5 mathjax"> Measuring the CMB primordial B-modes with Bolometric Interferometry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a>, <a href="/search/?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Arnaldi%2C+L+H">L. H. Arnaldi</a>, <a href="/search/?searchtype=author&query=Aumont%2C+J">J. Aumont</a>, <a href="/search/?searchtype=author&query=Banfi%2C+S">S. Banfi</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=B%C3%A9lier%2C+B">B. B茅lier</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bernard%2C+J+-">J. -Ph. Bernard</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Bersanelli%2C+M">M. Bersanelli</a>, <a href="/search/?searchtype=author&query=Bonaparte%2C+J">J. Bonaparte</a>, <a href="/search/?searchtype=author&query=Bonilla%2C+J+D">J. D. Bonilla</a>, <a href="/search/?searchtype=author&query=Bunn%2C+E">E. Bunn</a>, <a href="/search/?searchtype=author&query=Buzi%2C+D">D. Buzi</a>, <a href="/search/?searchtype=author&query=Cacciotti%2C+F">F. Cacciotti</a>, <a href="/search/?searchtype=author&query=Camilieri%2C+D">D. Camilieri</a>, <a href="/search/?searchtype=author&query=Cavaliere%2C+F">F. Cavaliere</a>, <a href="/search/?searchtype=author&query=Chanial%2C+P">P. Chanial</a>, <a href="/search/?searchtype=author&query=Chapron%2C+C">C. Chapron</a>, <a href="/search/?searchtype=author&query=Colombo%2C+L">L. Colombo</a>, <a href="/search/?searchtype=author&query=Columbro%2C+F">F. Columbro</a>, <a href="/search/?searchtype=author&query=Coppolecchia%2C+A">A. Coppolecchia</a> , et al. (89 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="2311.02779v1-abstract-short" style="display: inline;"> The Q&U Bolometric Interferometer for Cosmology (QUBIC) is the first bolometric interferometer designed to measure the primordial B-mode polarization of the Cosmic Microwave Background (CMB). Bolometric interferometry is a novel technique that combines the sensitivity of bolometric detectors with the control of systematic effects that is typical of interferometry, both key features in the quest fo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.02779v1-abstract-full').style.display = 'inline'; document.getElementById('2311.02779v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.02779v1-abstract-full" style="display: none;"> The Q&U Bolometric Interferometer for Cosmology (QUBIC) is the first bolometric interferometer designed to measure the primordial B-mode polarization of the Cosmic Microwave Background (CMB). Bolometric interferometry is a novel technique that combines the sensitivity of bolometric detectors with the control of systematic effects that is typical of interferometry, both key features in the quest for the faint signal of the primordial B-modes. A unique feature is the so-called "spectral imaging", i.e., the ability to recover the sky signal in several sub-bands within the physical band during data analysis. This feature provides an in-band spectral resolution of 螖谓/谓 \sim 0.04 that is unattainable by a traditional imager. This is a key tool for controlling the Galactic foregrounds contamination. In this paper, we describe the principles of bolometric interferometry, the current status of the QUBIC experiment and future prospects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.02779v1-abstract-full').style.display = 'none'; document.getElementById('2311.02779v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">To appear in Proc. of the mm Universe 2023 conference, Grenoble (France), June 2023, published by F. Mayet et al. (Eds), EPJ Web of conferences, EDP Sciences</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.16751">arXiv:2308.16751</a> <span> [<a href="https://arxiv.org/pdf/2308.16751">pdf</a>, <a href="https://arxiv.org/format/2308.16751">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Modeling terahertz emissions from energetic electrons and ions in foil targets irradiated by ultraintense femtosecond laser pulses </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Denoual%2C+E">E. Denoual</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Davoine%2C+X">X. Davoine</a>, <a href="/search/?searchtype=author&query=Gremillet%2C+L">L. Gremillet</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.16751v2-abstract-short" style="display: inline;"> Terahertz (THz) emissions from fast electron and ion currents driven in relativistic, femtosecond laser-foil interactions are examined theoretically. We first consider the radiation from the energetic electrons exiting the backside of the target. Our kinetic model takes account of the coherent transition radiation due to these electrons crossing the plasma-vacuum interface as well as of the synchr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16751v2-abstract-full').style.display = 'inline'; document.getElementById('2308.16751v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.16751v2-abstract-full" style="display: none;"> Terahertz (THz) emissions from fast electron and ion currents driven in relativistic, femtosecond laser-foil interactions are examined theoretically. We first consider the radiation from the energetic electrons exiting the backside of the target. Our kinetic model takes account of the coherent transition radiation due to these electrons crossing the plasma-vacuum interface as well as of the synchrotron radiation due to their deflection and deceleration in the sheath field they set up in vacuum. After showing that both mechanisms tend to largely compensate each other when all the electrons are pulled back into the target, we investigate the scaling of the net radiation with the sheath field strength. We then demonstrate the sensitivity of this radiation to a percent-level fraction of escaping electrons. We also study the influence of the target thickness and laser focusing. The same sheath field that confines most of the fast electrons around the target rapidly sets into motion the surface ions. We describe the THz emission from these accelerated ions and their accompanying hot electrons by means of a plasma expansion model that allows for finite foil size and multidimensional effects. Again, we explore the dependencies of this radiation mechanism on the laser-target parameters. Under conditions typical of current ultrashort laser-solid experiments, we find that the THz radiation from the expanding plasma is much less energetic -- by one to three orders of magnitude -- than that due to the early-time motion of the fast electrons. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.16751v2-abstract-full').style.display = 'none'; document.getElementById('2308.16751v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.14831">arXiv:2307.14831</a> <span> [<a href="https://arxiv.org/pdf/2307.14831">pdf</a>, <a href="https://arxiv.org/format/2307.14831">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Test of $^{116}$CdWO$_4$ and Li$_2$MoO$_4$ scintillating bolometers in the CROSS underground facility with upgraded detector suspension </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ahmine%2C+A">A. Ahmine</a>, <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berest%2C+V">V. Berest</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">P. Gras</a>, <a href="/search/?searchtype=author&query=Helis%2C+D+L">D. L. Helis</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Imbert%2C+L">L. Imbert</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</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="2307.14831v1-abstract-short" style="display: inline;"> In preparation to the CROSS $2尾$ decay experiment, we installed a new detector suspension with magnetic dumping inside a pulse-tube cryostat of a dedicated low-background facility at the LSC (Spain). The suspension was tested with two scintillating bolometers based on large-volume 116CdWO4 (CWO-enr) and Li2MoO4 (LMO) crystals. The former, a reference device, was used for testing new noise conditio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.14831v1-abstract-full').style.display = 'inline'; document.getElementById('2307.14831v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.14831v1-abstract-full" style="display: none;"> In preparation to the CROSS $2尾$ decay experiment, we installed a new detector suspension with magnetic dumping inside a pulse-tube cryostat of a dedicated low-background facility at the LSC (Spain). The suspension was tested with two scintillating bolometers based on large-volume 116CdWO4 (CWO-enr) and Li2MoO4 (LMO) crystals. The former, a reference device, was used for testing new noise conditions and for comparing bolometric performance of an advanced Li2MoO4 crystal developed in the framework of the CLYMENE project, in view of next-generation double-beta decay experiments like CUPID. We cooled down detectors to 15 mK and achieved high performance for all tested devices. In particular both CWO-enr and LMO bolometers demonstrated the energy resolution of 6 keV FWHM for the 2.6 MeV gamma quanta, among the best for thermal detectors based on such compounds. The baseline noise resolution (FWHM) of the CWO-enr detector was improved by 2 keV, compared to the best previous measurement of this detector in the CROSS facility, while the noise of the Ge-based optical bolometer was improved by a factor 2, to 100 eV FWHM. Despite of the evident progress in the improving of noise conditions of the set-up, we see high-frequency harmonics of a pulse-tube induced noise, suggesting a noise pick-up by cabling. Another Ge light detector was assisted with the signal amplification exploiting the Neganov-Trofimov-Luke effect, which allowed to reach 20 eV FWHM noise resolution by applying 60 V electrode bias. Highly-efficient particle identification was achieved with both detectors, despite a low scintillation efficiency of the LMO material. The radiopurity level of the LMO crystal is rather high; only traces of 210Po and 226Ra were detected (0.1 mBq/kg each), while the 228Th activity is expected to be at least an order of magnitude lower, as well as a 40K activity is found to be < 6 mBq/kg. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.14831v1-abstract-full').style.display = 'none'; document.getElementById('2307.14831v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">Prepared for submission to JINST, 26 pages, 8 figures, 2 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/2307.14086">arXiv:2307.14086</a> <span> [<a href="https://arxiv.org/pdf/2307.14086">pdf</a>, <a href="https://arxiv.org/format/2307.14086">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="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Measurement of the $2谓尾尾$ decay rate and spectral shape of $^{100}$Mo from the CUPID-Mo experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+6+M">6 M. Beretta</a>, <a href="/search/?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Celi%2C+E">E. Celi</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Gironi%2C+L">L. Gironi</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a> , et al. (59 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="2307.14086v1-abstract-short" style="display: inline;"> Neutrinoless double beta decay ($0谓尾尾$) is a yet unobserved nuclear process which would demonstrate Lepton Number violation, a clear evidence of beyond Standard Model physics. The process two neutrino double beta decay ($2谓尾尾)$ is allowed by the Standard Model and has been measured in numerous experiments. In this letter, we report a measurement of $2谓尾尾$ decay half-life of $^{100}$Mo to the groun… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.14086v1-abstract-full').style.display = 'inline'; document.getElementById('2307.14086v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.14086v1-abstract-full" style="display: none;"> Neutrinoless double beta decay ($0谓尾尾$) is a yet unobserved nuclear process which would demonstrate Lepton Number violation, a clear evidence of beyond Standard Model physics. The process two neutrino double beta decay ($2谓尾尾)$ is allowed by the Standard Model and has been measured in numerous experiments. In this letter, we report a measurement of $2谓尾尾$ decay half-life of $^{100}$Mo to the ground state of $^{100}$Ru of $(7.07~\pm~0.02~\text{(stat.)}~\pm~0.11~\text{(syst.)})~\times~10^{18}$~yr by the CUPID-Mo experiment. With a relative precision of $\pm~1.6$ \% this is the most precise measurement to date of a $2谓尾尾$ decay rate in $^{100}$Mo. In addition, we constrain higher-order corrections to the spectral shape which provides complementary nuclear structure information. We report a novel measurement of the shape factor $尉_{3,1}=0.45~\pm 0.03~\text{(stat.)} \ \pm 0.05 \ \text{(syst.)}$, which is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of $2谓尾尾$ decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.14086v1-abstract-full').style.display = 'none'; document.getElementById('2307.14086v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">8 pages, 5 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/2306.00166">arXiv:2306.00166</a> <span> [<a href="https://arxiv.org/pdf/2306.00166">pdf</a>, <a href="https://arxiv.org/format/2306.00166">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> </div> </div> <p class="title is-5 mathjax"> First demonstration of 30 eVee ionization energy resolution with Ricochet germanium cryogenic bolometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Baulieu%2C+G">G. Baulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?searchtype=author&query=Bret%2C+J+-">J. -L. Bret</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chaize%2C+D">D. Chaize</a>, <a href="/search/?searchtype=author&query=Chala%2C+M">M. Chala</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chaplinsky%2C+L">L. Chaplinsky</a>, <a href="/search/?searchtype=author&query=Chemin%2C+G">G. Chemin</a>, <a href="/search/?searchtype=author&query=Chen%2C+R">R. Chen</a>, <a href="/search/?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/?searchtype=author&query=Cudmore%2C+E">E. Cudmore</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Exshaw%2C+O">O. Exshaw</a>, <a href="/search/?searchtype=author&query=Ferriol%2C+S">S. Ferriol</a>, <a href="/search/?searchtype=author&query=Figueroa-Feliciano%2C+E">E. Figueroa-Feliciano</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+-">J. -B. Filippini</a> , et al. (55 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="2306.00166v1-abstract-short" style="display: inline;"> The future Ricochet experiment aims to search for new physics in the electroweak sector by measuring the Coherent Elastic Neutrino-Nucleus Scattering process from reactor antineutrinos with high precision down to the sub-100 eV nuclear recoil energy range. While the Ricochet collaboration is currently building the experimental setup at the reactor site, it is also finalizing the cryogenic detector… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.00166v1-abstract-full').style.display = 'inline'; document.getElementById('2306.00166v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2306.00166v1-abstract-full" style="display: none;"> The future Ricochet experiment aims to search for new physics in the electroweak sector by measuring the Coherent Elastic Neutrino-Nucleus Scattering process from reactor antineutrinos with high precision down to the sub-100 eV nuclear recoil energy range. While the Ricochet collaboration is currently building the experimental setup at the reactor site, it is also finalizing the cryogenic detector arrays that will be integrated into the cryostat at the Institut Laue Langevin in early 2024. In this paper, we report on recent progress from the Ge cryogenic detector technology, called the CryoCube. More specifically, we present the first demonstration of a 30~eVee (electron equivalent) baseline ionization resolution (RMS) achieved with an early design of the detector assembly and its dedicated High Electron Mobility Transistor (HEMT) based front-end electronics. This represents an order of magnitude improvement over the best ionization resolutions obtained on similar heat-and-ionization germanium cryogenic detectors from the EDELWEISS and SuperCDMS dark matter experiments, and a factor of three improvement compared to the first fully-cryogenic HEMT-based preamplifier coupled to a CDMS-II germanium detector. Additionally, we discuss the implications of these results in the context of the future Ricochet experiment and its expected background mitigation performance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2306.00166v1-abstract-full').style.display = 'none'; document.getElementById('2306.00166v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 31 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 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">10 pages, 5 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.01402">arXiv:2305.01402</a> <span> [<a href="https://arxiv.org/pdf/2305.01402">pdf</a>, <a href="https://arxiv.org/format/2305.01402">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-023-11830-2">10.1140/epjc/s10052-023-11830-2 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The background model of the CUPID-Mo $0谓尾尾$ experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Collaboration%2C+C">CUPID-Mo Collaboration</a>, <a href="/search/?searchtype=author&query=%3A"> :</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Celi%2C+E">E. Celi</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a> , et al. (58 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.01402v1-abstract-short" style="display: inline;"> CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0谓尾尾$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01402v1-abstract-full').style.display = 'inline'; document.getElementById('2305.01402v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.01402v1-abstract-full" style="display: none;"> CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a demonstrator for the next generation $0谓尾尾$ decay experiment, CUPID. It consisted of an array of 20 enriched Li$_{2}$$ ^{100}$MoO$_4$ bolometers and 20 Ge light detectors and has demonstrated that the technology of scintillating bolometers with particle identification capabilities is mature. Furthermore, CUPID-Mo can inform and validate the background prediction for CUPID. In this paper, we present a detailed model of the CUPID-Mo backgrounds. This model is able to describe well the features of the experimental data and enables studies of the $2谓尾尾$ decay and other processes with high precision. We also measure the radio-purity of the Li$_{2}$$^{100}$MoO$_4$ crystals which are found to be sufficient for the CUPID goals. Finally, we also obtain a background index in the region of interest of 3.7$^{+0.9}_{-0.8}$(stat)$^{+1.5}_{-0.7}$(syst)$\times10^{-3}$counts/$螖$E$_{FWHM}$/mol$_{iso}$/yr, the lowest in a bolometric $0谓尾尾$ decay experiment. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01402v1-abstract-full').style.display = 'none'; document.getElementById('2305.01402v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.14926">arXiv:2304.14926</a> <span> [<a href="https://arxiv.org/pdf/2304.14926">pdf</a>, <a href="https://arxiv.org/format/2304.14926">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2023.168765">10.1016/j.nima.2023.168765 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Results from a Prototype TES Detector for the Ricochet Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ricochet+Collaboration"> Ricochet Collaboration</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Baulieu%2C+G">G. Baulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?searchtype=author&query=Bret%2C+J+L">J-. L. Bret</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chaize%2C+D">D. Chaize</a>, <a href="/search/?searchtype=author&query=Chala%2C+M">M. Chala</a>, <a href="/search/?searchtype=author&query=Chang%2C+C+L">C. L. Chang</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chaplinsky%2C+L">L. Chaplinsky</a>, <a href="/search/?searchtype=author&query=Chemin%2C+G">G. Chemin</a>, <a href="/search/?searchtype=author&query=Chen%2C+R">R. Chen</a>, <a href="/search/?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/?searchtype=author&query=Cudmore%2C+E">E. Cudmore</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Exshaw%2C+O">O. Exshaw</a>, <a href="/search/?searchtype=author&query=Ferriol%2C+S">S. Ferriol</a> , et al. (66 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="2304.14926v2-abstract-short" style="display: inline;"> Coherent elastic neutrino-nucleus scattering (CE$谓$NS) offers valuable sensitivity to physics beyond the Standard Model. The Ricochet experiment will use cryogenic solid-state detectors to perform a precision measurement of the CE$谓$NS spectrum induced by the high neutrino flux from the Institut Laue-Langevin nuclear reactor. The experiment will employ an array of detectors, each with a mass of… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.14926v2-abstract-full').style.display = 'inline'; document.getElementById('2304.14926v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.14926v2-abstract-full" style="display: none;"> Coherent elastic neutrino-nucleus scattering (CE$谓$NS) offers valuable sensitivity to physics beyond the Standard Model. The Ricochet experiment will use cryogenic solid-state detectors to perform a precision measurement of the CE$谓$NS spectrum induced by the high neutrino flux from the Institut Laue-Langevin nuclear reactor. The experiment will employ an array of detectors, each with a mass of $\sim$30 g and a targeted energy threshold of 50 eV. Nine of these detectors (the "Q-Array") will be based on a novel Transition-Edge Sensor (TES) readout style, in which the TES devices are thermally coupled to the absorber using a gold wire bond. We present initial characterization of a Q-Array-style detector using a 1 gram silicon absorber, obtaining a baseline root-mean-square resolution of less than 40 eV. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.14926v2-abstract-full').style.display = 'none'; document.getElementById('2304.14926v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 January, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">18 pages, 8 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Nuclear Inst. and Methods in Physics Research, A 1057 (2023) 168765 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.13100">arXiv:2304.13100</a> <span> [<a href="https://arxiv.org/pdf/2304.13100">pdf</a>, <a href="https://arxiv.org/format/2304.13100">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Li$_2$$^{100\textrm{depl}}$MoO$_4$ Scintillating Bolometers for Rare-Event Search Experiments </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Grigorieva%2C+V+D">V. D. Grigorieva</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Kobychev%2C+V+V">V. V. Kobychev</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=Madhukuttan%2C+M">M. Madhukuttan</a>, <a href="/search/?searchtype=author&query=Makarov%2C+E+P">E. P. Makarov</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</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="2304.13100v1-abstract-short" style="display: inline;"> We report on the development of scintillating bolometers based on lithium molybdate crystals containing molybdenum depleted in the double-$尾$ active isotope $^{100}$Mo (Li$_2$$^{100\textrm{depl}}$MoO$_4$). We used two Li$_2$$^{100\textrm{depl}}$MoO$_4$ cubic samples, 45 mm side and 0.28 kg each, produced following purification and crystallization protocols developed for double-$尾$ search experimen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13100v1-abstract-full').style.display = 'inline'; document.getElementById('2304.13100v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.13100v1-abstract-full" style="display: none;"> We report on the development of scintillating bolometers based on lithium molybdate crystals containing molybdenum depleted in the double-$尾$ active isotope $^{100}$Mo (Li$_2$$^{100\textrm{depl}}$MoO$_4$). We used two Li$_2$$^{100\textrm{depl}}$MoO$_4$ cubic samples, 45 mm side and 0.28 kg each, produced following purification and crystallization protocols developed for double-$尾$ search experiments with $^{100}$Mo-enriched Li$_2$MoO$_4$ crystals. Bolometric Ge detectors were utilized to register scintillation photons emitted by the Li$_2$$^{100\textrm{depl}}$MoO$_4$ crystal scintillators. The measurements were performed in the CROSS cryogenic set-up at the Canfranc underground laboratory (Spain). We observed that the Li$_2$$^{100\textrm{depl}}$MoO$_4$ scintillating bolometers are characterized by excellent spectrometric performance ($\sim$3--6 keV FWHM at 0.24--2.6 MeV $纬$'s), moderate scintillation signal ($\sim$0.3--0.6 keV/MeV depending on light collection conditions) and high radiopurity ($^{228}$Th and $^{226}$Ra activities are below a few $渭$Bq/kg), comparable to the best reported results of low-temperature detectors based on Li$_2$MoO$_4$ with natural or $^{100}$Mo-enriched molybdenum content. Prospects of Li$_2$$^{100\textrm{depl}}$MoO$_4$ bolometers for use in rare-event search experiments are briefly discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.13100v1-abstract-full').style.display = 'none'; document.getElementById('2304.13100v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 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">Prepared for submission to MDPI Sensors; 16 pages, 7 figures, and 3 tables</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/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/?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+B">J. B. Filippini</a>, <a href="/search/?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Guy%2C+E">E. Guy</a>, <a href="/search/?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?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/2302.13944">arXiv:2302.13944</a> <span> [<a href="https://arxiv.org/pdf/2302.13944">pdf</a>, <a href="https://arxiv.org/format/2302.13944">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-023-11519-6">10.1140/epjc/s10052-023-11519-6 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Enhanced light signal for the suppression of pile-up events in Mo-based bolometers for the $0谓尾尾$ decay search </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ahmine%2C+A">A. Ahmine</a>, <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Bandac%2C+I">I. Bandac</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Imbert%2C+L">L. Imbert</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</a>, <a href="/search/?searchtype=author&query=Nones%2C+C">C. Nones</a>, <a href="/search/?searchtype=author&query=Olivieri%2C+E">E. Olivieri</a>, <a href="/search/?searchtype=author&query=de+Sol%C3%B2rzano%2C+A+O">A. Ortiz de Sol貌rzano</a>, <a href="/search/?searchtype=author&query=Pessina%2C+G">G. Pessina</a>, <a href="/search/?searchtype=author&query=Poda%2C+D+V">D. V. Poda</a>, <a href="/search/?searchtype=author&query=Redon%2C+T">Th. Redon</a>, <a href="/search/?searchtype=author&query=Scarpaci%2C+J+A">J. A. Scarpaci</a> , et al. (2 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2302.13944v2-abstract-short" style="display: inline;"> Random coincidences of events could be one of the main sources of background in the search for neutrino-less double-beta decay of $^{100}$Mo with macro-bolometers, due to their modest time resolution. Scintillating bolometers as those based on Li$_2$MoO$_4$ crystals and employed in the CROSS and CUPID experiments can eventually exploit the coincident fast signal detected in a light detector to red… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13944v2-abstract-full').style.display = 'inline'; document.getElementById('2302.13944v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.13944v2-abstract-full" style="display: none;"> Random coincidences of events could be one of the main sources of background in the search for neutrino-less double-beta decay of $^{100}$Mo with macro-bolometers, due to their modest time resolution. Scintillating bolometers as those based on Li$_2$MoO$_4$ crystals and employed in the CROSS and CUPID experiments can eventually exploit the coincident fast signal detected in a light detector to reduce this background. However, the scintillation provides a modest signal-to-noise ratio, making difficult a pile-up pulse-shape recognition and rejection at timescales shorter than a few ms. Neganov-Trofimov-Luke assisted light detectors (NTL-LDs) offer the possibility to effectively increase the signal-to-noise ratio, preserving a fast time-response, and enhance the capability of pile-up rejection via pulse shape analysis. In this article we present: a) an experimental work performed with a Li$_2$MoO$_4$ scintillating bolometer, studied in the framework of the CROSS experiment, and utilizing a NTL-LD; b) a simulation method to reproduce, synthetically, randomly coincident two-neutrino double-beta decay events; c) a new analysis method based on a pulse-shape discrimination algorithm capable of providing high pile-up rejection efficiencies. We finally show how the NTL-LDs offer a balanced solution between performance and complexity to reach background index $\sim$$10^{-4}$ counts/keV/kg/year with 280~g Li$_2$MoO$_4$ ($^{100}$Mo enriched) bolometers at 3034 keV, the Q-value of the double-beta decay, and target the goal of a next generation experiment like CUPID. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.13944v2-abstract-full').style.display = 'none'; document.getElementById('2302.13944v2-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 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 February, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2210.03161">arXiv:2210.03161</a> <span> [<a href="https://arxiv.org/pdf/2210.03161">pdf</a>, <a href="https://arxiv.org/format/2210.03161">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </div> </div> <p class="title is-5 mathjax"> Status of QUBIC, the Q&U Bolometer for Cosmology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a>, <a href="/search/?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Arnaldi%2C+L+H">L. H. Arnaldi</a>, <a href="/search/?searchtype=author&query=Aumont%2C+J">J. Aumont</a>, <a href="/search/?searchtype=author&query=Banfi%2C+S">S. Banfi</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=B%C3%A9lier%2C+B">B. B茅lier</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bernard%2C+J+-">J. -Ph. Bernard</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Bersanelli%2C+M">M. Bersanelli</a>, <a href="/search/?searchtype=author&query=Bonaparte%2C+J">J. Bonaparte</a>, <a href="/search/?searchtype=author&query=Bonilla%2C+J+D">J. D. Bonilla</a>, <a href="/search/?searchtype=author&query=Bunn%2C+E">E. Bunn</a>, <a href="/search/?searchtype=author&query=Buzi%2C+D">D. Buzi</a>, <a href="/search/?searchtype=author&query=Camilieri%2C+D">D. Camilieri</a>, <a href="/search/?searchtype=author&query=Cavaliere%2C+F">F. Cavaliere</a>, <a href="/search/?searchtype=author&query=Chanial%2C+P">P. Chanial</a>, <a href="/search/?searchtype=author&query=Chapron%2C+C">C. Chapron</a>, <a href="/search/?searchtype=author&query=Colombo%2C+S">S. Colombo</a>, <a href="/search/?searchtype=author&query=Columbro%2C+F">F. Columbro</a>, <a href="/search/?searchtype=author&query=Coppolecchia%2C+A">A. Coppolecchia</a>, <a href="/search/?searchtype=author&query=Costanza%2C+B">B. Costanza</a> , et al. (86 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="2210.03161v1-abstract-short" style="display: inline;"> The Q&U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Back-ground (CMB), which is one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systematic effects and polluted by various astrophysical foregr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.03161v1-abstract-full').style.display = 'inline'; document.getElementById('2210.03161v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2210.03161v1-abstract-full" style="display: none;"> The Q&U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Back-ground (CMB), which is one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systematic effects and polluted by various astrophysical foregrounds which can only be controlled through multichroic observations. QUBIC is designed to address these observational issues with a novel approach that combines the advantages of interferometry in terms of control of instrumental systematics with those of bolometric detectors in terms of wide-band, background-limited sensitivity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2210.03161v1-abstract-full').style.display = 'none'; document.getElementById('2210.03161v1-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 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 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">Contribution to the 2022 Cosmology session of the 33rd Rencontres de Blois. arXiv admin note: substantial text overlap with arXiv:2203.08947</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2208.01760">arXiv:2208.01760</a> <span> [<a href="https://arxiv.org/pdf/2208.01760">pdf</a>, <a href="https://arxiv.org/format/2208.01760">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-11150-x">10.1140/epjc/s10052-022-11150-x <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Fast neutron background characterization of the future Ricochet experiment at the ILL research nuclear reactor </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Baulieu%2C+G">G. Baulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?searchtype=author&query=Bret%2C+J+-">J. -L. Bret</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chaize%2C+D">D. Chaize</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chaplinsky%2C+L">L. Chaplinsky</a>, <a href="/search/?searchtype=author&query=Chemin%2C+G">G. Chemin</a>, <a href="/search/?searchtype=author&query=Chen%2C+R">R. Chen</a>, <a href="/search/?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Exshaw%2C+O">O. Exshaw</a>, <a href="/search/?searchtype=author&query=Ferriol%2C+S">S. Ferriol</a>, <a href="/search/?searchtype=author&query=Figueroa-Feliciano%2C+E">E. Figueroa-Feliciano</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+-">J. -B. Filippini</a>, <a href="/search/?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/?searchtype=author&query=Fuard%2C+S">S. Fuard</a> , et al. (58 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2208.01760v1-abstract-short" style="display: inline;"> The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale low-energy-threshold detector array combining Ge and Zn target crystals 8.8 meters away from the 58 MW resear… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.01760v1-abstract-full').style.display = 'inline'; document.getElementById('2208.01760v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2208.01760v1-abstract-full" style="display: none;"> The future Ricochet experiment aims at searching for new physics in the electroweak sector by providing a high precision measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CENNS) process down to the sub-100 eV nuclear recoil energy range. The experiment will deploy a kg-scale low-energy-threshold detector array combining Ge and Zn target crystals 8.8 meters away from the 58 MW research nuclear reactor core of the Institut Laue Langevin (ILL) in Grenoble, France. Currently, the Ricochet collaboration is characterizing the backgrounds at its future experimental site in order to optimize the experiment's shielding design. The most threatening background component, which cannot be actively rejected by particle identification, consists of keV-scale neutron-induced nuclear recoils. These initial fast neutrons are generated by the reactor core and surrounding experiments (reactogenics), and by the cosmic rays producing primary neutrons and muon-induced neutrons in the surrounding materials. In this paper, we present the Ricochet neutron background characterization using $^3$He proportional counters which exhibit a high sensitivity to thermal, epithermal and fast neutrons. We compare these measurements to the Ricochet Geant4 simulations to validate our reactogenic and cosmogenic neutron background estimations. Eventually, we present our estimated neutron background for the future Ricochet experiment and the resulting CENNS detection significance. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2208.01760v1-abstract-full').style.display = 'none'; document.getElementById('2208.01760v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 August, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">14 pages, 14 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2207.09577">arXiv:2207.09577</a> <span> [<a href="https://arxiv.org/pdf/2207.09577">pdf</a>, <a href="https://arxiv.org/format/2207.09577">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> New measurement of double beta decays of $^{100}$Mo to excited states of $^{100}$Ru with the CUPID-Mo experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Collaboration%2C+C">CUPID-Mo Collaboration</a>, <a href="/search/?searchtype=author&query=%3A"> :</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Gironi%2C+L">L. Gironi</a> , et al. (58 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2207.09577v1-abstract-short" style="display: inline;"> The CUPID-Mo experiment, located at Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li$_2^{100}$MoO$_4$ (LMO) calorimeters each equipped with a Ge light detector (LD) for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double beta decays of $^{100}$Mo to the first 0$^+$ and… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09577v1-abstract-full').style.display = 'inline'; document.getElementById('2207.09577v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2207.09577v1-abstract-full" style="display: none;"> The CUPID-Mo experiment, located at Laboratoire Souterrain de Modane (France), was a demonstrator experiment for CUPID. It consisted of an array of 20 Li$_2^{100}$MoO$_4$ (LMO) calorimeters each equipped with a Ge light detector (LD) for particle identification. In this work, we present the result of a search for two-neutrino and neutrinoless double beta decays of $^{100}$Mo to the first 0$^+$ and $2^+$ excited states of $^{100}$Ru using the full CUPID-Mo exposure (2.71 kg$\times$yr of LMO). We measure the half-life of $2谓尾尾$ decay to the $0^{+}_1$ state as $T_{1/2}^{2谓\rightarrow 0_1^+}=7.5\pm 0.8 \ \text{(stat.)} \ ^{+ 0.4}_{-0.3} \ \text{(syst.)} )\times 10^{20} \ \mathrm{yr}$. The bolometric technique enables measurement of the electron energies as well as the gamma rays from nuclear de-excitation and this allows us to set new limits on the two-neutrino decay to the $2_1^+$ state of $T^{2谓\rightarrow 2_1^+}_{1/2}>4.4\times 10^{21} \ \mathrm{yr} \ \text{(90 % c.i.)}$ and on the neutrinoless modes of $T_{1/2}^{0谓\rightarrow 2_1^+}>2.1\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$, $T_{1/2}^{0谓\rightarrow 0_1^+}>1.2\times10^{23} \ \mathrm{yr}\ \text{(90 % c.i.)}$. Information on the electrons spectral shape is obtained which allows us to make the first comparison of the single state (SSD) and higher state (HSD) $2谓尾尾$ decay models for the $0_1^+$ excited state of $^{100}$Ru. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2207.09577v1-abstract-full').style.display = 'none'; document.getElementById('2207.09577v1-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 July, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 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">22 pages, 15 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2205.05459">arXiv:2205.05459</a> <span> [<a href="https://arxiv.org/pdf/2205.05459">pdf</a>, <a href="https://arxiv.org/format/2205.05459">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> Impact of deformation bands on fault-related fluid flow in field-scale simulations </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Berge%2C+R+L">Runar L. Berge</a>, <a href="/search/?searchtype=author&query=Gasda%2C+S+E">Sarah E. Gasda</a>, <a href="/search/?searchtype=author&query=Keilegavlen%2C+E">Eirik Keilegavlen</a>, <a href="/search/?searchtype=author&query=Sandve%2C+T+H">Tor Harald Sandve</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2205.05459v1-abstract-short" style="display: inline;"> Subsurface storage of CO2 is predicted to rise exponentially in response to the increasing levels of CO2 in the atmosphere. Large-scale CO2 injections into the subsurface require understanding of the potential for fluid flow through faults to mitigate risk of leakage. Here, we study how to obtain effective permeability of deformation bands in the damage zone of faults. Deformation bands are relati… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.05459v1-abstract-full').style.display = 'inline'; document.getElementById('2205.05459v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2205.05459v1-abstract-full" style="display: none;"> Subsurface storage of CO2 is predicted to rise exponentially in response to the increasing levels of CO2 in the atmosphere. Large-scale CO2 injections into the subsurface require understanding of the potential for fluid flow through faults to mitigate risk of leakage. Here, we study how to obtain effective permeability of deformation bands in the damage zone of faults. Deformation bands are relatively small, low permeability features that can have a significant effect on flow dynamics, however, the discrepancy of scales is a challenge for field-scale simulation. A new analytical upscaling model is proposed in order to overcome some of the shortcomings of conventional upscaling approaches for heterogeneous porous media. The new model captures the fine-scale impact of deformation bands on fluid flow in the near-fault region, and can be derived from knowledge of large-scale fault properties. To test the accuracy of the model it is compared to fine-scale numerical simulations that explicitly include individual deformation bands. For a wide range of different stochastically generated deformation bands networks, the upscaling model shows improved estimate of effective permeability compared to conventional upscaling approaches. By applying the upscaling model to a full-field simulation of the Smeaheia storage site in the North Sea, we show that deformation bands with a permeability contrast higher than three orders of magnitude may act as an extra layer of protection from fluid flow through faults. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2205.05459v1-abstract-full').style.display = 'none'; document.getElementById('2205.05459v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.07361">arXiv:2203.07361</a> <span> [<a href="https://arxiv.org/pdf/2203.07361">pdf</a>, <a href="https://arxiv.org/format/2203.07361">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 - Phenomenology">hep-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Coherent elastic neutrino-nucleus scattering: Terrestrial and astrophysical applications </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Abdullah%2C+M">M. Abdullah</a>, <a href="/search/?searchtype=author&query=Abele%2C+H">H. Abele</a>, <a href="/search/?searchtype=author&query=Akimov%2C+D">D. Akimov</a>, <a href="/search/?searchtype=author&query=Angloher%2C+G">G. Angloher</a>, <a href="/search/?searchtype=author&query=Aristizabal-Sierra%2C+D">D. Aristizabal-Sierra</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Balantekin%2C+A+B">A. B. Balantekin</a>, <a href="/search/?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/?searchtype=author&query=Barbeau%2C+P+S">P. S. Barbeau</a>, <a href="/search/?searchtype=author&query=Baudis%2C+L">L. Baudis</a>, <a href="/search/?searchtype=author&query=Baxter%2C+A+L">A. L. Baxter</a>, <a href="/search/?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/?searchtype=author&query=Beaulieu%2C+G">G. Beaulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Bento%2C+A">A. Bento</a>, <a href="/search/?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/?searchtype=author&query=Bernardi%2C+I+A">I. A. Bernardi</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bolozdynya%2C+A">A. Bolozdynya</a>, <a href="/search/?searchtype=author&query=Bonhomme%2C+A">A. Bonhomme</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?searchtype=author&query=Bret%2C+J+L">J-. L. Bret</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Brossard%2C+A">A. Brossard</a>, <a href="/search/?searchtype=author&query=Buck%2C+C">C. Buck</a> , et al. (250 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.07361v1-abstract-short" style="display: inline;"> Coherent elastic neutrino-nucleus scattering (CE$谓$NS) is a process in which neutrinos scatter on a nucleus which acts as a single particle. Though the total cross section is large by neutrino standards, CE$谓$NS has long proven difficult to detect, since the deposited energy into the nucleus is $\sim$ keV. In 2017, the COHERENT collaboration announced the detection of CE$谓$NS using a stopped-pion… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07361v1-abstract-full').style.display = 'inline'; document.getElementById('2203.07361v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.07361v1-abstract-full" style="display: none;"> Coherent elastic neutrino-nucleus scattering (CE$谓$NS) is a process in which neutrinos scatter on a nucleus which acts as a single particle. Though the total cross section is large by neutrino standards, CE$谓$NS has long proven difficult to detect, since the deposited energy into the nucleus is $\sim$ keV. In 2017, the COHERENT collaboration announced the detection of CE$谓$NS using a stopped-pion source with CsI detectors, followed up the detection of CE$谓$NS using an Ar target. The detection of CE$谓$NS has spawned a flurry of activities in high-energy physics, inspiring new constraints on beyond the Standard Model (BSM) physics, and new experimental methods. The CE$谓$NS process has important implications for not only high-energy physics, but also astrophysics, nuclear physics, and beyond. This whitepaper discusses the scientific importance of CE$谓$NS, highlighting how present experiments such as COHERENT are informing theory, and also how future experiments will provide a wealth of information across the aforementioned fields of physics. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.07361v1-abstract-full').style.display = 'none'; document.getElementById('2203.07361v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 14 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">contribution to Snowmasss 2021. Contact authors: P. S. Barbeau, R. Strauss, L. E. Strigari</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.03993">arXiv:2203.03993</a> <span> [<a href="https://arxiv.org/pdf/2203.03993">pdf</a>, <a href="https://arxiv.org/format/2203.03993">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> </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.106.062004">10.1103/PhysRevD.106.062004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Search for sub-GeV Dark Matter via Migdal effect with an EDELWEISS germanium detector with NbSi TES sensors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Caze%2C+A">A. Caze</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+B">J. B. Filippini</a>, <a href="/search/?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Guy%2C+E">E. Guy</a>, <a href="/search/?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a> , et al. (15 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.03993v4-abstract-short" style="display: inline;"> The EDELWEISS collaboration reports on the search for Dark Matter (DM) particle interactions via Migdal effect with masses between $32$ MeV$\cdot$c$^{-2}$ to $2$ GeV$\cdot$c$^{-2}$ using a $200$ g cryogenic Ge detector sensitive to simultaneously heat and ionization signals and operated underground at the Laboratoire Souterrain de Modane in France. The phonon signal was read out using a Transition… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.03993v4-abstract-full').style.display = 'inline'; document.getElementById('2203.03993v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.03993v4-abstract-full" style="display: none;"> The EDELWEISS collaboration reports on the search for Dark Matter (DM) particle interactions via Migdal effect with masses between $32$ MeV$\cdot$c$^{-2}$ to $2$ GeV$\cdot$c$^{-2}$ using a $200$ g cryogenic Ge detector sensitive to simultaneously heat and ionization signals and operated underground at the Laboratoire Souterrain de Modane in France. The phonon signal was read out using a Transition Edge Sensor made of a NbSi thin film. The detector was biased at $66$ V in order to benefit from the Neganov-Trofimov-Luke amplification and resulting in a resolution on the energy of electron recoils of $4.46$ eV$_{ee}$ (RMS) and an analysis threshold of $30$ eV$_{ee}$. The sensitivity is limited by a dominant background not associated to charge creation in the detector. The search constrains a new region of parameter space for cross-sections down to $10^{-29}$ cm$^2$ and masses between $32$ and $100$ MeV$\cdot$c$^{-2}$. The achieved low threshold with the NbSi sensor shows the relevance of its use for athermal-phonon sensitive devices for low-mass DM searches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.03993v4-abstract-full').style.display = 'none'; document.getElementById('2203.03993v4-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 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. D 106, 062004 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.08716">arXiv:2202.08716</a> <span> [<a href="https://arxiv.org/pdf/2202.08716">pdf</a>, <a href="https://arxiv.org/format/2202.08716">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-022-10942-5">10.1140/epjc/s10052-022-10942-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Final results on the $0谓尾尾$ decay half-life limit of $^{100}$Mo from the CUPID-Mo experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Fujikawa%2C+B+K">B. K. Fujikawa</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Gironi%2C+L">L. Gironi</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a> , et al. (54 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.08716v2-abstract-short" style="display: inline;"> The CUPID-Mo experiment to search for 0$谓尾尾$ decay in $^{100}$Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0$谓尾尾$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.08716v2-abstract-full').style.display = 'inline'; document.getElementById('2202.08716v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.08716v2-abstract-full" style="display: none;"> The CUPID-Mo experiment to search for 0$谓尾尾$ decay in $^{100}$Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0$谓尾尾$ decay experiment. CUPID-Mo was comprised of 20 enriched Li$_2$$^{100}$MoO$_4$ scintillating calorimeters, each with a mass of $\sim$ 0.2 kg, operated at $\sim$20 mK. We present here the final analysis with the full exposure of CUPID-Mo ($^{100}$Mo exposure of 1.47 kg$\times$yr) used to search for lepton number violation via 0$谓尾尾$ decay. We report on various analysis improvements since the previous result on a subset of data, reprocessing all data with these new techniques. We observe zero events in the region of interest and set a new limit on the $^{100}$Mo 0$谓尾尾$ decay half-life of $T^{0谓}_{1/2} > 1.8 \times 10^{24}$ year (stat.+syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of $\left<m_{尾尾}\right> < (0.28$--$0.49)$ eV, dependent upon the nuclear matrix element utilized. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.08716v2-abstract-full').style.display = 'none'; document.getElementById('2202.08716v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 82, 1033 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.05097">arXiv:2202.05097</a> <span> [<a href="https://arxiv.org/pdf/2202.05097">pdf</a>, <a href="https://arxiv.org/format/2202.05097">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.21468/SciPostPhysProc.9.001">10.21468/SciPostPhysProc.9.001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> EXCESS workshop: Descriptions of rising low-energy spectra </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Adari%2C+P">P. Adari</a>, <a href="/search/?searchtype=author&query=Aguilar-Arevalo%2C+A">A. Aguilar-Arevalo</a>, <a href="/search/?searchtype=author&query=Amidei%2C+D">D. Amidei</a>, <a href="/search/?searchtype=author&query=Angloher%2C+G">G. Angloher</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Balogh%2C+L">L. Balogh</a>, <a href="/search/?searchtype=author&query=Banik%2C+S">S. Banik</a>, <a href="/search/?searchtype=author&query=Baxter%2C+D">D. Baxter</a>, <a href="/search/?searchtype=author&query=Beaufort%2C+C">C. Beaufort</a>, <a href="/search/?searchtype=author&query=Beaulieu%2C+G">G. Beaulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Gal%2C+Y+B">Y. Ben Gal</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Bento%2C+A">A. Bento</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bertolini%2C+A">A. Bertolini</a>, <a href="/search/?searchtype=author&query=Bhattacharyya%2C+R">R. Bhattacharyya</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bloch%2C+I+M">I. M. Bloch</a>, <a href="/search/?searchtype=author&query=Botti%2C+A">A. Botti</a>, <a href="/search/?searchtype=author&query=Breier%2C+R">R. Breier</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?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/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Fillipini%2C+J+-">J. -B. Fillipini</a>, <a href="/search/?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/?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/2112.09657">arXiv:2112.09657</a> <span> [<a href="https://arxiv.org/pdf/2112.09657">pdf</a>, <a href="https://arxiv.org/format/2112.09657">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</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/10.1063/5.0082593">10.1063/5.0082593 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Air-photonics terahertz platform with versatile micro-controller based interface and data acquisition </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Prost%2C+E">E. Prost</a>, <a href="/search/?searchtype=author&query=Loriot%2C+V">V. Loriot</a>, <a href="/search/?searchtype=author&query=Constant%2C+E">E. Constant</a>, <a href="/search/?searchtype=author&query=Compagnon%2C+I">I. Compagnon</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=L%C3%A9pine%2C+F">F. L茅pine</a>, <a href="/search/?searchtype=author&query=Skupin%2C+S">S. Skupin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2112.09657v1-abstract-short" style="display: inline;"> We present a recently developed terahertz platform. An air plasma produced by an ultrashort two-color laser pulse serves as a broadband terahertz source, with electric field that has peak amplitude in the MV/cm range. Air biased coherent detection of the terahertz field is employed where a peak detector associated with a micro-controller board acquires the signal coming from an avalanche photodiod… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.09657v1-abstract-full').style.display = 'inline'; document.getElementById('2112.09657v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2112.09657v1-abstract-full" style="display: none;"> We present a recently developed terahertz platform. An air plasma produced by an ultrashort two-color laser pulse serves as a broadband terahertz source, with electric field that has peak amplitude in the MV/cm range. Air biased coherent detection of the terahertz field is employed where a peak detector associated with a micro-controller board acquires the signal coming from an avalanche photodiode. The temporal and spectral profiles of the produced terahertz electric field are presented, in excellent agreement with numerical simulations of the whole setup. We illustrate the capabilities of this platform by performing spectroscopy on water vapor and of a polystyrene reference sample. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2112.09657v1-abstract-full').style.display = 'none'; document.getElementById('2112.09657v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 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">8 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/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/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Benoit%2C+A">A. Benoit</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+-">J. -B. Filippini</a>, <a href="/search/?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/?searchtype=author&query=Lattaud%2C+H">H. Lattaud</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?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/2111.06745">arXiv:2111.06745</a> <span> [<a href="https://arxiv.org/pdf/2111.06745">pdf</a>, <a href="https://arxiv.org/format/2111.06745">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Ricochet Progress and Status </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Ricochet+Collaboration"> Ricochet Collaboration</a>, <a href="/search/?searchtype=author&query=Beaulieu%2C+G">G. Beaulieu</a>, <a href="/search/?searchtype=author&query=Belov%2C+V">V. Belov</a>, <a href="/search/?searchtype=author&query=Berge%2C+L">L. Berge</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Bres%2C+G">G. Bres</a>, <a href="/search/?searchtype=author&query=Bret%2C+J+L">J-. L. Bret</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Calvo%2C+M">M. Calvo</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chaize%2C+D">D. Chaize</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Chaplinsky%2C+L">L. Chaplinsky</a>, <a href="/search/?searchtype=author&query=Chemin%2C+G">G. Chemin</a>, <a href="/search/?searchtype=author&query=Chen%2C+R">R. Chen</a>, <a href="/search/?searchtype=author&query=Colas%2C+J">J. Colas</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Exshaw%2C+O">O. Exshaw</a>, <a href="/search/?searchtype=author&query=Ferriol%2C+S">S. Ferriol</a>, <a href="/search/?searchtype=author&query=Figueroa-Feliciano%2C+E">E. Figueroa-Feliciano</a>, <a href="/search/?searchtype=author&query=Filippini%2C+J+B">J. B. Filippini</a>, <a href="/search/?searchtype=author&query=Formaggio%2C+J+A">J. A. Formaggio</a>, <a href="/search/?searchtype=author&query=Fuard%2C+S">S. Fuard</a> , et al. (55 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="2111.06745v1-abstract-short" style="display: inline;"> We present an overview of recent progress towards the Ricochet coherent elastic neutrino nucleus scattering CE$谓$NS experiment. The ILL research reactor in Grenoble, France has been selected as the experiment site, after in situ studies of vibration and particle backgrounds. We present background rate estimates specific to that site, along with descriptions of the planned CryoCube and Q-Array dete… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.06745v1-abstract-full').style.display = 'inline'; document.getElementById('2111.06745v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2111.06745v1-abstract-full" style="display: none;"> We present an overview of recent progress towards the Ricochet coherent elastic neutrino nucleus scattering CE$谓$NS experiment. The ILL research reactor in Grenoble, France has been selected as the experiment site, after in situ studies of vibration and particle backgrounds. We present background rate estimates specific to that site, along with descriptions of the planned CryoCube and Q-Array detector payloads. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2111.06745v1-abstract-full').style.display = 'none'; document.getElementById('2111.06745v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 November, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 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">Proceedings for the 19th International Workshop on Low Temperature Detectors (LTD19)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.07181">arXiv:2103.07181</a> <span> [<a href="https://arxiv.org/pdf/2103.07181">pdf</a>, <a href="https://arxiv.org/format/2103.07181">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1063/5.0050124">10.1063/5.0050124 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Phonon-mediated crystal detectors with metallic film coating capable of rejecting $伪$ and $尾$ events induced by surface radioactivity </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Ferri%2C+F">F. Ferri</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gotti%2C+C">C. Gotti</a>, <a href="/search/?searchtype=author&query=Gras%2C+P">Ph. Gras</a>, <a href="/search/?searchtype=author&query=Guerard%2C+E">E. Guerard</a>, <a href="/search/?searchtype=author&query=Ianni%2C+A">A. Ianni</a>, <a href="/search/?searchtype=author&query=Khalife%2C+H">H. Khalife</a>, <a href="/search/?searchtype=author&query=Konovalov%2C+S+I">S. I. Konovalov</a>, <a href="/search/?searchtype=author&query=Loaiza%2C+P">P. Loaiza</a>, <a href="/search/?searchtype=author&query=Madhukuttan%2C+M">M. Madhukuttan</a>, <a href="/search/?searchtype=author&query=de+Marcillac%2C+P">P. de Marcillac</a>, <a href="/search/?searchtype=author&query=Mariam%2C+R">R. Mariam</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A. Marrache-Kikuchi</a> , et al. (11 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.07181v3-abstract-short" style="display: inline;"> Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.07181v3-abstract-full').style.display = 'inline'; document.getElementById('2103.07181v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.07181v3-abstract-full" style="display: none;"> Phonon-mediated particle detectors based on single crystals and operated at millikelvin temperatures are used in rare-event experiments for neutrino physics and dark-matter searches. In general, these devices are not sensitive to the particle impact point, especially if the detection is mediated by thermal phonons. In this Letter, we demonstrate that excellent discrimination between interior and surface $尾$ and $伪$ events can be achieved by coating a crystal face with a thin metallic film, either continuous or in the form of a grid. The coating affects the phonon energy down-conversion cascade that follows the particle interaction, leading to a modified signal shape for close-to-film events. An efficient identification of surface events was demonstrated with detectors based on a rectangular $20 \times 20 \times 10$ mm$^3$ Li$_2$MoO$_4$ crystal coated with a Pd normal-metal film (10~nm thick) and with Al-Pd superconductive bi-layers (100~nm-10~nm thick) on a $20 \times 20$ mm$^2$ face. Discrimination capabilities were tested with $^{238}$U sources emitting both $伪$ and $尾$ particles. Surface events are identified for energy depositions down to millimeter-scale depths from the coated surface. With this technology, a substantial improvement of the background figure can be achieved in experiments searching for neutrinoless double-beta decay. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.07181v3-abstract-full').style.display = 'none'; document.getElementById('2103.07181v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Appl. Phys. Lett. 118 (2021) 184105 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2102.08642">arXiv:2102.08642</a> <span> [<a href="https://arxiv.org/pdf/2102.08642">pdf</a>, <a href="https://arxiv.org/format/2102.08642">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Disordered Systems and Neural Networks">cond-mat.dis-nn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Superconductivity">cond-mat.supr-con</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/10.1038/s41467-021-26911-7">10.1038/s41467-021-26911-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Overactivated transport in the localized phase of the superconductor-insulator transition </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Humbert%2C+V">V. Humbert</a>, <a href="/search/?searchtype=author&query=Ort%C5%A9no%2C+M">M. Ort农no</a>, <a href="/search/?searchtype=author&query=Somoza%2C+A+M">A. M. Somoza</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Marrache-Kikuchi%2C+C+A">C. A Marrache-Kikuchi</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2102.08642v1-abstract-short" style="display: inline;"> Beyond a critical disorder, two-dimensional (2D) superconductors become insulating. In this Superconductor-Insulator Transition (SIT), the nature of the insulator is still controversial. Here, we present an extensive experimental study on insulating Nb_{x}Si_{1-x} close to the SIT, as well as corresponding numerical simulations of the electrical conductivity. At low temperatures, we show that elec… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.08642v1-abstract-full').style.display = 'inline'; document.getElementById('2102.08642v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2102.08642v1-abstract-full" style="display: none;"> Beyond a critical disorder, two-dimensional (2D) superconductors become insulating. In this Superconductor-Insulator Transition (SIT), the nature of the insulator is still controversial. Here, we present an extensive experimental study on insulating Nb_{x}Si_{1-x} close to the SIT, as well as corresponding numerical simulations of the electrical conductivity. At low temperatures, we show that electronic transport is activated and dominated by charging energies. The sample thickness variation results in a large spread of activation temperatures, fine-tuned via disorder. We show numerically and experimentally that the localization length varies exponentially with thickness. At the lowest temperatures, overactivated behavior is observed in the vicinity of the SIT and the increase in the activation energy can be attributed to the superconducting gap. We derive a relation between the increase in activation energy and the temperature below which overactivated behavior is observed. This relation is verified by many different quasi-2D systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2102.08642v1-abstract-full').style.display = 'none'; document.getElementById('2102.08642v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 February, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2101.06787">arXiv:2101.06787</a> <span> [<a href="https://arxiv.org/pdf/2101.06787">pdf</a>, <a href="https://arxiv.org/format/2101.06787">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> </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/10.1088/1475-7516/2022/04/037">10.1088/1475-7516/2022/04/037 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC IV: Performance of TES Bolometers and Readout Electronics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Stankowiak%2C+G">G. Stankowiak</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Alessandro%2C+G+D">G. D Alessandro</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Hoang%2C+T+D">T. D. Hoang</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Sullivan%2C+C+O">C. O Sullivan</a>, <a href="/search/?searchtype=author&query=Prele%2C+D">D. Prele</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Thermeau%2C+J+-">J. -P. Thermeau</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a>, <a href="/search/?searchtype=author&query=Alberro%2C+J+G">J. G. Alberro</a>, <a href="/search/?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Arnaldi%2C+L+H">L. H. Arnaldi</a> , et al. (104 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="2101.06787v2-abstract-short" style="display: inline;"> A prototype version of the Q & U bolometric interferometer for cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology laboratory in Paris (APC). The detection chain is currently made of 256 NbSi transition edge sensors (TES) cooled to 320 mK. The readout system is a 128:1 time domain multiplexing scheme based on 128 SQUIDs cooled at 1 K that are… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.06787v2-abstract-full').style.display = 'inline'; document.getElementById('2101.06787v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2101.06787v2-abstract-full" style="display: none;"> A prototype version of the Q & U bolometric interferometer for cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology laboratory in Paris (APC). The detection chain is currently made of 256 NbSi transition edge sensors (TES) cooled to 320 mK. The readout system is a 128:1 time domain multiplexing scheme based on 128 SQUIDs cooled at 1 K that are controlled and amplified by an SiGe application specific integrated circuit at 40 K. We report the performance of this readout chain and the characterization of the TES. The readout system has been functionally tested and characterized in the lab and in QUBIC. The low noise amplifier demonstrated a white noise level of 0.3 nV.Hz^-0.5. Characterizations of the QUBIC detectors and readout electronics includes the measurement of I-V curves, time constant and the noise equivalent power. The QUBIC TES bolometer array has approximately 80% detectors within operational parameters. It demonstrated a thermal decoupling compatible with a phonon noise of about 5.10^-17 W.Hz^-0.5 at 410 mK critical temperature. While still limited by microphonics from the pulse tubes and noise aliasing from readout system, the instrument noise equivalent power is about 2.10^-16 W.Hz^-0.5, enough for the demonstration of bolometric interferometry. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2101.06787v2-abstract-full').style.display = 'none'; document.getElementById('2101.06787v2-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 October, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 January, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">Accepted for publication in JCAP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13806">arXiv:2011.13806</a> <span> [<a href="https://arxiv.org/pdf/2011.13806">pdf</a>, <a href="https://arxiv.org/format/2011.13806">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/16/02/P02037">10.1088/1748-0221/16/02/P02037 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A CUPID Li$_{2}$$^{100}$MoO$_4$ scintillating bolometer tested in the CROSS underground facility </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=The+CUPID+Interest+Group"> The CUPID Interest Group</a>, <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Bandac%2C+I+C">I. C. Bandac</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Calvo-Mozota%2C+J+M">J. M. Calvo-Mozota</a>, <a href="/search/?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a> , et al. (156 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13806v1-abstract-short" style="display: inline;"> A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation $0\nu2尾$ experiment CUPID. The measurements were performed at 18 an… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13806v1-abstract-full').style.display = 'inline'; document.getElementById('2011.13806v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13806v1-abstract-full" style="display: none;"> A scintillating bolometer based on a large cubic Li$_{2}$$^{100}$MoO$_4$ crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation $0\nu2尾$ experiment CUPID. The measurements were performed at 18 and 12 mK temperature in a pulse tube dilution refrigerator. This setup utilizes the same technology as the CUORE cryostat that will host CUPID and so represents an accurate estimation of the expected performance. The Li$_{2}$$^{100}$MoO$_4$ bolometer shows a high energy resolution of 6 keV FWHM at the 2615 keV $纬$ line. The detection of scintillation light for each event triggered by the Li$_{2}$$^{100}$MoO$_4$ bolometer allowed for a full separation ($\sim$8$蟽$) between $纬$($尾$) and $伪$ events above 2 MeV. The Li$_{2}$$^{100}$MoO$_4$ crystal also shows a high internal radiopurity with $^{228}$Th and $^{226}$Ra activities of less than 3 and 8 $渭$Bq/kg, respectively. Taking also into account the advantage of a more compact and massive detector array, which can be made of cubic-shaped crystals (compared to the cylindrical ones), this test demonstrates the great potential of cubic Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers for high-sensitivity searches for the $^{100}$Mo $0\nu2尾$ decay in CROSS and CUPID projects. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13806v1-abstract-full').style.display = 'none'; document.getElementById('2011.13806v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">19 pages, 7 figures, 1 table</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13656">arXiv:2011.13656</a> <span> [<a href="https://arxiv.org/pdf/2011.13656">pdf</a>, <a href="https://arxiv.org/format/2011.13656">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> </div> <p class="title is-5 mathjax"> Characterization of cubic Li$_{2}$$^{100}$MoO$_4$ crystals for the CUPID experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L">L. Berg猫</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a> , et al. (147 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13656v1-abstract-short" style="display: inline;"> The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li$_{2}$$^{100}$MoO$_4$ crystals as suitable detectors for neutrinoless double beta… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13656v1-abstract-full').style.display = 'inline'; document.getElementById('2011.13656v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13656v1-abstract-full" style="display: none;"> The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li$_{2}$$^{100}$MoO$_4$ crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of (6.7$\pm$0.6) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of $伪$ particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this $伪$-induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13656v1-abstract-full').style.display = 'none'; document.getElementById('2011.13656v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 27 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.13243">arXiv:2011.13243</a> <span> [<a href="https://arxiv.org/pdf/2011.13243">pdf</a>, <a href="https://arxiv.org/format/2011.13243">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Nuclear Experiment">nucl-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.126.181802">10.1103/PhysRevLett.126.181802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> New Limit for Neutrinoless Double-Beta Decay of $^{100}$Mo from the CUPID-Mo Experiment </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=Chiesa%2C+D">D. Chiesa</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a> , et al. (69 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.13243v2-abstract-short" style="display: inline;"> The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0谓尾尾$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0谓尾尾$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physi… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13243v2-abstract-full').style.display = 'inline'; document.getElementById('2011.13243v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.13243v2-abstract-full" style="display: none;"> The CUPID-Mo experiment at the Laboratoire Souterrain de Modane (France) is a demonstrator for CUPID, the next-generation ton-scale cryogenic $0谓尾尾$ experiment. It consists of a 4.2 kg array of 20 enriched Li$_{2}$$^{100}$MoO$_4$ scintillating bolometers to search for the lepton number violating process of $0谓尾尾$ decay in $^{100}$Mo. With more than one year of operation (2.16 kg$\times$yr of physics data), no event in the region of interest and hence no evidence for $0谓尾尾$ is observed. We report a new limit on the half-life of $0谓尾尾$ decay in $^{100}$Mo of $T_{1/2} > 1.5 \times 10^{24}\,$yr at 90 % C.I. The limit corresponds to an effective Majorana neutrino mass $\langle m_{尾尾} \rangle$ $<$ (0.31--0.54)$\,$eV, dependent on the nuclear matrix element in the light Majorana neutrino exchange interpretation. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.13243v2-abstract-full').style.display = 'none'; document.getElementById('2011.13243v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 26 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 126, 181802 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.11726">arXiv:2011.11726</a> <span> [<a href="https://arxiv.org/pdf/2011.11726">pdf</a>, <a href="https://arxiv.org/format/2011.11726">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevC.104.015501">10.1103/PhysRevC.104.015501 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Novel technique for the study of pile-up events in cryogenic bolometers </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Armatol%2C+A">A. Armatol</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Armstrong%2C+W">W. Armstrong</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Avignone%2C+F+T">F. T. Avignone III</a>, <a href="/search/?searchtype=author&query=Azzolini%2C+O">O. Azzolini</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A">A. Barabash</a>, <a href="/search/?searchtype=author&query=Bari%2C+G">G. Bari</a>, <a href="/search/?searchtype=author&query=Barresi%2C+A">A. Barresi</a>, <a href="/search/?searchtype=author&query=Baudin%2C+D">D. Baudin</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Biassoni%2C+M">M. Biassoni</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Boldrini%2C+V">V. Boldrini</a>, <a href="/search/?searchtype=author&query=Branca%2C+A">A. Branca</a>, <a href="/search/?searchtype=author&query=Brofferio%2C+C">C. Brofferio</a>, <a href="/search/?searchtype=author&query=Bucci%2C+C">C. Bucci</a>, <a href="/search/?searchtype=author&query=Camilleri%2C+J">J. Camilleri</a>, <a href="/search/?searchtype=author&query=Capelli%2C+S">S. Capelli</a>, <a href="/search/?searchtype=author&query=Cappelli%2C+L">L. Cappelli</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Carniti%2C+P">P. Carniti</a> , et al. (144 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.11726v2-abstract-short" style="display: inline;"> Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pile-up of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pile-up rejection capability of cryogenic bolometers. Our ap… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11726v2-abstract-full').style.display = 'inline'; document.getElementById('2011.11726v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.11726v2-abstract-full" style="display: none;"> Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pile-up of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pile-up rejection capability of cryogenic bolometers. Our approach, which consists of producing controlled pile-up events with a programmable waveform generator, has the benefit that we can reliably and reproducibly control the time separation and relative energy of the individual components of the generated pile-up events. The resulting data allow us to optimize and benchmark analysis strategies to discriminate between individual and pile-up pulses. We describe a test of this technique performed with a small array of detectors at the Laboratori Nazionali del Gran Sasso, in Italy; we obtain a 90% rejection efficiency against pulser-generated pile-up events with rise time of ~15ms down to time separation between the individual events of about 2ms. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.11726v2-abstract-full').style.display = 'none'; document.getElementById('2011.11726v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. C 104, 015501 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2011.02213">arXiv:2011.02213</a> <span> [<a href="https://arxiv.org/pdf/2011.02213">pdf</a>, <a href="https://arxiv.org/format/2011.02213">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </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/10.1088/1475-7516/2022/04/034">10.1088/1475-7516/2022/04/034 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC I: Overview and ScienceProgram </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=Bigot-Sazy%2C+M+-">M. -A. Bigot-Sazy</a>, <a href="/search/?searchtype=author&query=Chanial%2C+P">P. Chanial</a>, <a href="/search/?searchtype=author&query=Charlassier%2C+R">R. Charlassier</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Lerena%2C+M+M+G">M. M. Gamboa Lerena</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Lau%2C+S">S. Lau</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Riccardi%2C+G">G. Riccardi</a>, <a href="/search/?searchtype=author&query=Sc%C3%B3ccola%2C+C">C. Sc贸ccola</a>, <a href="/search/?searchtype=author&query=Stolpovskiy%2C+M">M. Stolpovskiy</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a> , et al. (105 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2011.02213v2-abstract-short" style="display: inline;"> The Q $\&$ U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Background (CMB), which is one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systematic effects and polluted by various astrophysical fo… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.02213v2-abstract-full').style.display = 'inline'; document.getElementById('2011.02213v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2011.02213v2-abstract-full" style="display: none;"> The Q $\&$ U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Background (CMB), which is one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systematic effects and polluted by various astrophysical foregrounds which can only be controlled through multichroic observations. QUBIC is designed to address these observational issues with a novel approach that combines the advantages of interferometry in terms of control of instrumental systematic effects with those of bolometric detectors in terms of wide-band, background-limited sensitivity. The QUBIC synthesized beam has a frequency-dependent shape that results in the ability to produce maps of the CMB polarization in multiple sub-bands within the two physical bands of the instrument (150 and 220 GHz). These features make QUBIC complementary to other instruments and makes it particularly well suited to characterize and remove Galactic foreground contamination. In this article, first of a series of eight, we give an overview of the QUBIC instrument design, the main results of the calibration campaign, and present the scientific program of QUBIC including not only the measurement of primordial B-modes, but also the measurement of Galactic foregrounds. We give forecasts for typical observations and measurements: with three years of integration on the sky and assuming perfect foreground removal as well as stable atmospheric conditions from our site in Argentina, our simulations show that we can achieve a statistical sensitivity to the effective tensor-to-scalar ratio (including primordial and foreground B-modes) $蟽(r)=0.015$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2011.02213v2-abstract-full').style.display = 'none'; document.getElementById('2011.02213v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">34 pages, 16 figures, accepted for publication by JCAP. Overview paper for a series of 8 QUBIC articles special JCAP edition dedicated to QUBIC</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.15119">arXiv:2010.15119</a> <span> [<a href="https://arxiv.org/pdf/2010.15119">pdf</a>, <a href="https://arxiv.org/format/2010.15119">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> </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/10.1088/1475-7516/2022/04/035">10.1088/1475-7516/2022/04/035 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC II: Spectro-Polarimetry with Bolometric Interferometry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Lerena%2C+M+M+G">M. M. Gamboa Lerena</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Chanial%2C+P">P. Chanial</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=Dashyan%2C+G">G. Dashyan</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Incardona%2C+F">F. Incardona</a>, <a href="/search/?searchtype=author&query=Landau%2C+S">S. Landau</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Ricciardi%2C+G">G. Ricciardi</a>, <a href="/search/?searchtype=author&query=Sc%C3%B3ccola%2C+C+G">C. G. Sc贸ccola</a>, <a href="/search/?searchtype=author&query=Stolpovskiy%2C+M">M. Stolpovskiy</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Thermeau%2C+J+-">J. -P. Thermeau</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a> , et al. (106 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="2010.15119v3-abstract-short" style="display: inline;"> Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical band in post-processing of the data. This provides a powerful spectral method to discriminate between the cosmic microwave background (CMB) and astrophysical foreg… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.15119v3-abstract-full').style.display = 'inline'; document.getElementById('2010.15119v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.15119v3-abstract-full" style="display: none;"> Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical band in post-processing of the data. This provides a powerful spectral method to discriminate between the cosmic microwave background (CMB) and astrophysical foregrounds. In this paper, the methodology is illustrated with examples based on the Q \& U Bolometric Interferometer for Cosmology (QUBIC) which is a ground-based instrument designed to measure the B-mode polarization of the sky at millimeter wavelengths. We consider the specific cases of point source reconstruction and Galactic dust mapping and we characterize the point spread function as a function of frequency. We study the noise properties of spectral imaging, especially the correlations between sub-bands, using end-to-end simulations together with a fast noise simulator. We conclude showing that spectral imaging performance are nearly optimal up to five sub-bands in the case of QUBIC. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.15119v3-abstract-full').style.display = 'none'; document.getElementById('2010.15119v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 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">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 18 figures. Accepted by JCAP on July 6, 2021. Second paper of series of 8 in a special JCAP edition on QUBIC</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2010.12076">arXiv:2010.12076</a> <span> [<a href="https://arxiv.org/pdf/2010.12076">pdf</a>, <a href="https://arxiv.org/format/2010.12076">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> </div> <p class="title is-5 mathjax"> Conceptual Design of BabyIAXO, the intermediate stage towards the International Axion Observatory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Abeln%2C+A">A. Abeln</a>, <a href="/search/?searchtype=author&query=Altenm%C3%BCller%2C+K">K. Altenm眉ller</a>, <a href="/search/?searchtype=author&query=Cuendis%2C+S+A">S. Arguedas Cuendis</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Atti%C3%A9%2C+D">D. Atti茅</a>, <a href="/search/?searchtype=author&query=Aune%2C+S">S. Aune</a>, <a href="/search/?searchtype=author&query=Basso%2C+S">S. Basso</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Biasuzzi%2C+B">B. Biasuzzi</a>, <a href="/search/?searchtype=author&query=De+Sousa%2C+P+T+C+B">P. T. C. Borges De Sousa</a>, <a href="/search/?searchtype=author&query=Brun%2C+P">P. Brun</a>, <a href="/search/?searchtype=author&query=Bykovskiy%2C+N">N. Bykovskiy</a>, <a href="/search/?searchtype=author&query=Calvet%2C+D">D. Calvet</a>, <a href="/search/?searchtype=author&query=Carmona%2C+J+M">J. M. Carmona</a>, <a href="/search/?searchtype=author&query=Castel%2C+J+F">J. F. Castel</a>, <a href="/search/?searchtype=author&query=Cebri%C3%A1n%2C+S">S. Cebri谩n</a>, <a href="/search/?searchtype=author&query=Chernov%2C+V">V. Chernov</a>, <a href="/search/?searchtype=author&query=Christensen%2C+F+E">F. E. Christensen</a>, <a href="/search/?searchtype=author&query=Civitani%2C+M+M">M. M. Civitani</a>, <a href="/search/?searchtype=author&query=Cogollos%2C+C">C. Cogollos</a>, <a href="/search/?searchtype=author&query=Dafn%C3%AD%2C+T">T. Dafn铆</a>, <a href="/search/?searchtype=author&query=Derbin%2C+A">A. Derbin</a>, <a href="/search/?searchtype=author&query=Desch%2C+K">K. Desch</a>, <a href="/search/?searchtype=author&query=D%C3%ADez%2C+D">D. D铆ez</a>, <a href="/search/?searchtype=author&query=Dinter%2C+M">M. Dinter</a> , et al. (101 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="2010.12076v3-abstract-short" style="display: inline;"> This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in the Sun, with unprecedented sensitivity. BabyIAXO is conceived to test all IAXO subsystems (magnet, optics and detectors) at a relevant scale for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.12076v3-abstract-full').style.display = 'inline'; document.getElementById('2010.12076v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.12076v3-abstract-full" style="display: none;"> This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in the Sun, with unprecedented sensitivity. BabyIAXO is conceived to test all IAXO subsystems (magnet, optics and detectors) at a relevant scale for the final system and thus serve as prototype for IAXO, but at the same time as a fully-fledged helioscope with relevant physics reach itself, and with potential for discovery. The BabyIAXO magnet will feature two 10 m long, 70 cm diameter bores, and will host two detection lines (optics and detector) of dimensions similar to the final ones foreseen for IAXO. BabyIAXO will detect or reject solar axions or ALPs with axion-photon couplings down to $g_{a纬} \sim 1.5 \times 10^{-11}$ GeV$^{-1}$, and masses up to $m_a\sim 0.25$ eV. BabyIAXO will offer additional opportunities for axion research in view of IAXO, like the development of precision x-ray detectors to identify particular spectral features in the solar axion spectrum, and the implementation of radiofrequency-cavity-based axion dark matter setups. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.12076v3-abstract-full').style.display = 'none'; document.getElementById('2010.12076v3-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, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 22 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">Comments:</span> <span class="has-text-grey-dark mathjax">77 pages, 49 figures. Prepared for submission to JHEP. Third version after referees comments</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/?searchtype=author&query=Huang%2C+R">R. Huang</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Barabash%2C+A+S">A. S. Barabash</a>, <a href="/search/?searchtype=author&query=Bellini%2C+F">F. Bellini</a>, <a href="/search/?searchtype=author&query=Benato%2C+G">G. Benato</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Beretta%2C+M">M. Beretta</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Borovlev%2C+Y+A">Yu. A. Borovlev</a>, <a href="/search/?searchtype=author&query=Bourgeois%2C+C">Ch. Bourgeois</a>, <a href="/search/?searchtype=author&query=Brudanin%2C+V+B">V. B. Brudanin</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cardani%2C+L">L. Cardani</a>, <a href="/search/?searchtype=author&query=Casali%2C+N">N. Casali</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=de+Combarieu%2C+M">M. de Combarieu</a>, <a href="/search/?searchtype=author&query=Dafinei%2C+I">I. Dafinei</a>, <a href="/search/?searchtype=author&query=Danevich%2C+F+A">F. A. Danevich</a>, <a href="/search/?searchtype=author&query=De+Jesus%2C+M">M. De Jesus</a>, <a href="/search/?searchtype=author&query=Dixon%2C+T">T. Dixon</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a> , et al. (64 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2010.04033v2-abstract-short" style="display: inline;"> CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. It uses 20 scintillating $^{100}$Mo-enriched Li$_2$MoO$_4$ bolometers instrumented with Ge light detectors to perform active suppression of $伪$ backgrounds, drastically reducing the expected background in the $0谓尾尾$ signal region. As a result, pileup events and small detector instab… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.04033v2-abstract-full').style.display = 'inline'; document.getElementById('2010.04033v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2010.04033v2-abstract-full" style="display: none;"> CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay ($0谓尾尾$) of $^{100}$Mo. It uses 20 scintillating $^{100}$Mo-enriched Li$_2$MoO$_4$ bolometers instrumented with Ge light detectors to perform active suppression of $伪$ backgrounds, drastically reducing the expected background in the $0谓尾尾$ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2010.04033v2-abstract-full').style.display = 'none'; document.getElementById('2010.04033v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 8 October, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 16 (2021) P03032 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.12721">arXiv:2008.12721</a> <span> [<a href="https://arxiv.org/pdf/2008.12721">pdf</a>, <a href="https://arxiv.org/format/2008.12721">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/10.1088/1475-7516/2022/04/040">10.1088/1475-7516/2022/04/040 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC VII: The feedhorn-switch system of the technological demonstrator </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Cavaliere%2C+F">F. Cavaliere</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a>, <a href="/search/?searchtype=author&query=Battaglia%2C+P">P. Battaglia</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=Burke%2C+D">D. Burke</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Franceschet%2C+C">C. Franceschet</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Maffei%2C+B">B. Maffei</a>, <a href="/search/?searchtype=author&query=Manzan%2C+E">E. Manzan</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Passerini%2C+A">A. Passerini</a>, <a href="/search/?searchtype=author&query=Pezzotta%2C+F">F. Pezzotta</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Vigan%C3%B2%2C+D">D. Vigan貌</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a> , et al. (106 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.12721v3-abstract-short" style="display: inline;"> We present the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the $Q$\&$U$ Bolometric Interferometer for Cosmology). This system is constituted of 64 back-to-back dual-band (150\,GHz and 220\,GHz) corrugated feed-horns interspersed with mechanical switches used to select desired baselines during the instrument self-calibration… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.12721v3-abstract-full').style.display = 'inline'; document.getElementById('2008.12721v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.12721v3-abstract-full" style="display: none;"> We present the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the $Q$\&$U$ Bolometric Interferometer for Cosmology). This system is constituted of 64 back-to-back dual-band (150\,GHz and 220\,GHz) corrugated feed-horns interspersed with mechanical switches used to select desired baselines during the instrument self-calibration. We manufactured the horns in aluminum platelets milled by photo-chemical etching and mechanically tightened with screws. The switches are based on steel blades that open and close the wave-guide between the back-to-back horns and are operated by miniaturized electromagnets. We also show the current development status of the feedhorn-switch system for the QUBIC full instrument, based on an array of 400 horn-switch assemblies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.12721v3-abstract-full').style.display = 'none'; document.getElementById('2008.12721v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 April, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 28 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">30 pages, 28 figures. Accepted for submission to JCAP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.10667">arXiv:2008.10667</a> <span> [<a href="https://arxiv.org/pdf/2008.10667">pdf</a>, <a href="https://arxiv.org/format/2008.10667">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </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/10.1088/1475-7516/2022/04/039">10.1088/1475-7516/2022/04/039 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC VI: cryogenic half wave plate rotator, design and performances </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=Mele%2C+L">L. Mele</a>, <a href="/search/?searchtype=author&query=Columbro%2C+F">F. Columbro</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Coppolecchia%2C+A">A. Coppolecchia</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Lamagna%2C+L">L. Lamagna</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Paiella%2C+A">A. Paiella</a>, <a href="/search/?searchtype=author&query=Piacentini%2C+F">F. Piacentini</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Pisano%2C+G">G. Pisano</a>, <a href="/search/?searchtype=author&query=Presta%2C+G">G. Presta</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a> , et al. (104 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.10667v2-abstract-short" style="display: inline;"> Inflation Gravity Waves B-Modes polarization detection is the ultimate goal of modern large angular scale cosmic microwave background (CMB) experiments around the world. A big effort is undergoing with the deployment of many ground-based, balloon-borne and satellite experiments using different methods to separate this faint polarized component from the incoming radiation. One of the largely used t… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10667v2-abstract-full').style.display = 'inline'; document.getElementById('2008.10667v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.10667v2-abstract-full" style="display: none;"> Inflation Gravity Waves B-Modes polarization detection is the ultimate goal of modern large angular scale cosmic microwave background (CMB) experiments around the world. A big effort is undergoing with the deployment of many ground-based, balloon-borne and satellite experiments using different methods to separate this faint polarized component from the incoming radiation. One of the largely used technique is the Stokes Polarimetry that uses a rotating half-wave plate (HWP) and a linear polarizer to separate and modulate the polarization components with low residual cross-polarization. This paper describes the QUBIC Stokes Polarimeter highlighting its design features and its performances. A common systematic with these devices is the generation of large spurious signals synchronous with the rotation and proportional to the emissivity of the optical elements. A key feature of the QUBIC Stokes Polarimeter is to operate at cryogenic temperature in order to minimize this unwanted component. Moving efficiently this large optical element at low temperature constitutes a big engineering challenge in order to reduce friction power dissipation. Big attention has been given during the designing phase to minimize the differential thermal contractions between parts. The rotation is driven by a stepper motor placed outside the cryostat to avoid thermal load dissipation at cryogenic temperature. The tests and the results presented in this work show that the QUBIC polarimeter can easily achieve a precision below 0.1掳 in positioning simply using the stepper motor precision and the optical absolute encoder. The rotation induces only few mK of extra power load on the second cryogenic stage (~ 8 K). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10667v2-abstract-full').style.display = 'none'; document.getElementById('2008.10667v2-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 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Part of a series of 8 papers on QUBIC to be submitted to a special issue of JCAP</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.10659">arXiv:2008.10659</a> <span> [<a href="https://arxiv.org/pdf/2008.10659">pdf</a>, <a href="https://arxiv.org/format/2008.10659">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/10.1088/1475-7516/2022/04/038">10.1088/1475-7516/2022/04/038 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC V: Cryogenic system design and performance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=Chapron%2C+C">C. Chapron</a>, <a href="/search/?searchtype=author&query=Columbro%2C+F">F. Columbro</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Mele%2C+L">L. Mele</a>, <a href="/search/?searchtype=author&query=May%2C+A">A. May</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Paiella%2C+A">A. Paiella</a>, <a href="/search/?searchtype=author&query=Piacentini%2C+F">F. Piacentini</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Piccirillo%2C+L">L. Piccirillo</a>, <a href="/search/?searchtype=author&query=Presta%2C+G">G. Presta</a>, <a href="/search/?searchtype=author&query=Schillaci%2C+A">A. Schillaci</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Thermeau%2C+J+-">J. -P. Thermeau</a>, <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a> , et al. (104 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.10659v2-abstract-short" style="display: inline;"> Current experiments aimed at measuring the polarization of the Cosmic Microwave Background (CMB) use cryogenic detector arrays and cold optical systems to boost the mapping speed of the sky survey. For these reasons, large volume cryogenic systems, with large optical windows, working continuously for years, are needed. Here we report on the cryogenic system of the QUBIC (Q and U Bolometric Interfe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10659v2-abstract-full').style.display = 'inline'; document.getElementById('2008.10659v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.10659v2-abstract-full" style="display: none;"> Current experiments aimed at measuring the polarization of the Cosmic Microwave Background (CMB) use cryogenic detector arrays and cold optical systems to boost the mapping speed of the sky survey. For these reasons, large volume cryogenic systems, with large optical windows, working continuously for years, are needed. Here we report on the cryogenic system of the QUBIC (Q and U Bolometric Interferometer for Cosmology) experiment: we describe its design, fabrication, experimental optimization and validation in the Technological Demonstrator configuration. The QUBIC cryogenic system is based on a large volume cryostat, using two pulse-tube refrigerators to cool at ~3K a large (~1 m^3) volume, heavy (~165kg) instrument, including the cryogenic polarization modulator, the corrugated feedhorns array, and the lower temperature stages; a 4He evaporator cooling at ~1K the interferometer beam combiner; a 3He evaporator cooling at ~0.3K the focal-plane detector arrays. The cryogenic system has been tested and validated for more than 6 months of continuous operation. The detector arrays have reached a stable operating temperature of 0.33K, while the polarization modulator has been operated from a ~10K base temperature. The system has been tilted to cover the boresight elevation range 20 deg -90 deg without significant temperature variations. The instrument is now ready for deployment to the high Argentinean Andes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10659v2-abstract-full').style.display = 'none'; document.getElementById('2008.10659v2-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 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">This is one of a series of papers on the QUBIC experiment status - This version of the paper matches the one accepted for publication on Journal of Cosmology and 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/2008.10119">arXiv:2008.10119</a> <span> [<a href="https://arxiv.org/pdf/2008.10119">pdf</a>, <a href="https://arxiv.org/format/2008.10119">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </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/10.1088/1475-7516/2022/04/041">10.1088/1475-7516/2022/04/041 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC VIII: Optical design and performance </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=Burke%2C+D">D. Burke</a>, <a href="/search/?searchtype=author&query=Buzi%2C+D">D. Buzi</a>, <a href="/search/?searchtype=author&query=Chapron%2C+C">C. Chapron</a>, <a href="/search/?searchtype=author&query=Conversi%2C+L">L. Conversi</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=De+Leo%2C+M">M. De Leo</a>, <a href="/search/?searchtype=author&query=Gayer%2C+D">D. Gayer</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Mattei%2C+A">A. Mattei</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Murphy%2C+J+D">J. D. Murphy</a>, <a href="/search/?searchtype=author&query=Pelosi%2C+A">A. Pelosi</a>, <a href="/search/?searchtype=author&query=Perciballi%2C+M">M. Perciballi</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Scully%2C+S">S. Scully</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a> , et al. (104 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.10119v2-abstract-short" style="display: inline;"> The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarisation anisotropies in the CMB at angular scales around the l=100 recombination peak. Systematic errors make ground-based observations of B modes at millimetre wavelengths very challenging and QUBIC mitigates these problems in a somewhat complementary way to other existing or p… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10119v2-abstract-full').style.display = 'inline'; document.getElementById('2008.10119v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.10119v2-abstract-full" style="display: none;"> The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarisation anisotropies in the CMB at angular scales around the l=100 recombination peak. Systematic errors make ground-based observations of B modes at millimetre wavelengths very challenging and QUBIC mitigates these problems in a somewhat complementary way to other existing or planned experiments using the novel technique of bolometric interferometry. This technique takes advantage of the sensitivity of an imager and the systematic error control of an interferometer. A cold reflective optical combiner superimposes there-emitted beams from 400 aperture feedhorns on two focal planes. A shielding system composedof a fixed groundshield, and a forebaffle that moves with the instrument, limits the impact of local contaminants. The modelling, design, manufacturing and preliminary measurements of the optical components are described in this paper. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10119v2-abstract-full').style.display = 'none'; document.getElementById('2008.10119v2-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 August, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Part of a series of 8 papers on QUBIC to be published in a special issue of JCAP. Accepted for publication</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2008.10056">arXiv:2008.10056</a> <span> [<a href="https://arxiv.org/pdf/2008.10056">pdf</a>, <a href="https://arxiv.org/format/2008.10056">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> </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/10.1088/1475-7516/2022/04/036">10.1088/1475-7516/2022/04/036 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC III: Laboratory Characterization </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Torchinsky%2C+S+A">S. A. Torchinsky</a>, <a href="/search/?searchtype=author&query=Hamilton%2C+J+-">J. -Ch. Hamilton</a>, <a href="/search/?searchtype=author&query=Piat%2C+M">M. Piat</a>, <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=Chapron%2C+C">C. Chapron</a>, <a href="/search/?searchtype=author&query=D%27Alessandro%2C+G">G. D'Alessandro</a>, <a href="/search/?searchtype=author&query=de+Bernardis%2C+P">P. de Bernardis</a>, <a href="/search/?searchtype=author&query=De+Petris%2C+M">M. De Petris</a>, <a href="/search/?searchtype=author&query=Lerena%2C+M+M+G">M. M. Gamboa Lerena</a>, <a href="/search/?searchtype=author&query=Gonz%C3%A1lez%2C+M">M. Gonz谩lez</a>, <a href="/search/?searchtype=author&query=Grandsire%2C+L">L. Grandsire</a>, <a href="/search/?searchtype=author&query=Masi%2C+S">S. Masi</a>, <a href="/search/?searchtype=author&query=Marnieros%2C+S">S. Marnieros</a>, <a href="/search/?searchtype=author&query=Mennella%2C+A">A. Mennella</a>, <a href="/search/?searchtype=author&query=Mousset%2C+L">L. Mousset</a>, <a href="/search/?searchtype=author&query=Murphy%2C+J+D">J. D. Murphy</a>, <a href="/search/?searchtype=author&query=Pr%C3%AAle%2C+D">D. Pr锚le</a>, <a href="/search/?searchtype=author&query=Stankowiak%2C+G">G. Stankowiak</a>, <a href="/search/?searchtype=author&query=O%27Sullivan%2C+C">C. O'Sullivan</a>, <a href="/search/?searchtype=author&query=Tartari%2C+A">A. Tartari</a>, <a href="/search/?searchtype=author&query=Thermeau%2C+J+-">J. -P. Thermeau</a>, <a href="/search/?searchtype=author&query=Voisin%2C+F">F. Voisin</a>, <a href="/search/?searchtype=author&query=Zannoni%2C+M">M. Zannoni</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a>, <a href="/search/?searchtype=author&query=Alberro%2C+J+G">J. G. Alberro</a> , et al. (103 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2008.10056v4-abstract-short" style="display: inline;"> A prototype version of the Q & U Bolometric Interferometer for Cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology in Paris. We report the results of this Technological Demonstrator which successfully shows the feasibility of the principle of Bolometric Interferometry. Characterization of QUBIC includes the measurement of the synthesized beam,… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10056v4-abstract-full').style.display = 'inline'; document.getElementById('2008.10056v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2008.10056v4-abstract-full" style="display: none;"> A prototype version of the Q & U Bolometric Interferometer for Cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology in Paris. We report the results of this Technological Demonstrator which successfully shows the feasibility of the principle of Bolometric Interferometry. Characterization of QUBIC includes the measurement of the synthesized beam, the measurement of interference fringes, and the measurement of polarization performance. A modulated and frequency tunable millimetre-wave source in the telescope far-field is used to simulate a point source. The QUBIC pointing is scanned across the point source to produce beam maps. Polarization modulation is measured using a rotating Half Wave Plate. The measured beam matches well to the theoretical simulations and gives QUBIC the ability to do spectro imaging. The polarization performance is excellent with less than 0.5\% cross-polarization rejection. QUBIC is ready for deployment on the high altitude site at Alto Chorillo, Argentina to begin scientific operations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2008.10056v4-abstract-full').style.display = 'none'; document.getElementById('2008.10056v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 23 August, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Part of a series of 8 papers on QUBIC accepted by JCAP for a special issue: https://iopscience.iop.org/journal/1475-7516/page/QUBIC_status_and_forecast</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.08191">arXiv:2007.08191</a> <span> [<a href="https://arxiv.org/pdf/2007.08191">pdf</a>, <a href="https://arxiv.org/format/2007.08191">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Optics">physics.optics</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1367-2630/abb863">10.1088/1367-2630/abb863 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Terahertz pulse generation by two-color laser fields with circular polarization </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Tailliez%2C+C">C. Tailliez</a>, <a href="/search/?searchtype=author&query=Stathopulos%2C+A">A. Stathopulos</a>, <a href="/search/?searchtype=author&query=Skupin%2C+S">S. Skupin</a>, <a href="/search/?searchtype=author&query=Buo%C5%BEius%2C+D">D. Buo啪ius</a>, <a href="/search/?searchtype=author&query=Babushkin%2C+I">I. Babushkin</a>, <a href="/search/?searchtype=author&query=Vai%C4%8Daitis%2C+V">V. Vai膷aitis</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.08191v1-abstract-short" style="display: inline;"> We study the influence of the polarization states of femtosecond two-color pulses ionizing gases on the emitted terahertz radiation. A local-current model and plane-wave evaluations justify the previously-reported impact on the THz energy yield and an (almost) linearly-polarized THz field when using circularly-polarized laser harmonics. For such pump pulses, the THz yield is independent on the rel… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.08191v1-abstract-full').style.display = 'inline'; document.getElementById('2007.08191v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.08191v1-abstract-full" style="display: none;"> We study the influence of the polarization states of femtosecond two-color pulses ionizing gases on the emitted terahertz radiation. A local-current model and plane-wave evaluations justify the previously-reported impact on the THz energy yield and an (almost) linearly-polarized THz field when using circularly-polarized laser harmonics. For such pump pulses, the THz yield is independent on the relative phase between the two colors. When the pump pulses have same helicity, the increase in the THz yield is associated to longer ionization sequences and higher electron transverse momenta acquired in the driving field. Reversely, for two color pulses with opposite helicity, the dramatic loss of THz power comes from destructive interferences driven by the highly symmetric response of the photocurrents lined up on the third harmonic of the fundamental pulse. While our experiments confirm an increased THz yield for circularly polarized pumps of same helicity, surprisingly, the emitted THz radiation is not linearly-polarized. This effect is explained by means of comprehensive 3D numerical simulations highlighting the role of the spatial alignment and non-collinear propagation of the two colors. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.08191v1-abstract-full').style.display = 'none'; document.getElementById('2007.08191v1-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 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 13 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/2005.05425">arXiv:2005.05425</a> <span> [<a href="https://arxiv.org/pdf/2005.05425">pdf</a>, <a href="https://arxiv.org/format/2005.05425">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Plasma Physics">physics.plasm-ph</span> </div> </div> <p class="title is-5 mathjax"> Terahertz emission from submicron solid targets irradiated by ultraintense femtosecond laser pulses </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=D%C3%A9chard%2C+J">J. D茅chard</a>, <a href="/search/?searchtype=author&query=Davoine%2C+X">X. Davoine</a>, <a href="/search/?searchtype=author&query=Gremillet%2C+L">L. Gremillet</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2005.05425v2-abstract-short" style="display: inline;"> Using high-resolution, two-dimensional particle-in-cell simulations, we investigate numerically the mechanisms of terahertz (THz) emissions in submicron-thick carbon solid foils driven by ultraintense ($\sim 10^{20}\,\rm W\,cm^{-2}$), ultrashort ($30\,\rm fs$) laser pulses at normal incidence. The considered range of target thicknesses extends down to the relativistic transparency regime that is k… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.05425v2-abstract-full').style.display = 'inline'; document.getElementById('2005.05425v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.05425v2-abstract-full" style="display: none;"> Using high-resolution, two-dimensional particle-in-cell simulations, we investigate numerically the mechanisms of terahertz (THz) emissions in submicron-thick carbon solid foils driven by ultraintense ($\sim 10^{20}\,\rm W\,cm^{-2}$), ultrashort ($30\,\rm fs$) laser pulses at normal incidence. The considered range of target thicknesses extends down to the relativistic transparency regime that is known to optimize ion acceleration by femtosecond laser pulses. By disentangling the fields emitted by longitudinal and transverse currents, our analysis reveals that, within the first picosecond after the interaction, THz emission occurs in bursts as a result of coherent transition radiation by the recirculating hot electrons and antenna-type emission by the shielding electron currents traveling along the fast-expanding target surfaces. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.05425v2-abstract-full').style.display = 'none'; document.getElementById('2005.05425v2-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 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2003.01046">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/?searchtype=author&query=EDELWEISS+Collaboration"> EDELWEISS Collaboration</a>, <a href="/search/?searchtype=author&query=Arnaud%2C+Q">Q. Arnaud</a>, <a href="/search/?searchtype=author&query=Armengaud%2C+E">E. Armengaud</a>, <a href="/search/?searchtype=author&query=Augier%2C+C">C. Augier</a>, <a href="/search/?searchtype=author&query=Beno%C3%AEt%2C+A">A. Beno卯t</a>, <a href="/search/?searchtype=author&query=Berg%C3%A9%2C+L">L. Berg茅</a>, <a href="/search/?searchtype=author&query=Billard%2C+J">J. Billard</a>, <a href="/search/?searchtype=author&query=Broniatowski%2C+A">A. Broniatowski</a>, <a href="/search/?searchtype=author&query=Camus%2C+P">P. Camus</a>, <a href="/search/?searchtype=author&query=Cazes%2C+A">A. Cazes</a>, <a href="/search/?searchtype=author&query=Chapellier%2C+M">M. Chapellier</a>, <a href="/search/?searchtype=author&query=Charlieux%2C+F">F. Charlieux</a>, <a href="/search/?searchtype=author&query=De+J%C3%A9sus%2C+M">M. De J茅sus</a>, <a href="/search/?searchtype=author&query=Dumoulin%2C+L">L. Dumoulin</a>, <a href="/search/?searchtype=author&query=Eitel%2C+K">K. Eitel</a>, <a href="/search/?searchtype=author&query=Elkhoury%2C+E">E. Elkhoury</a>, <a href="/search/?searchtype=author&query=Fillipini%2C+J+-">J. -B. Fillipini</a>, <a href="/search/?searchtype=author&query=Filosofov%2C+D">D. Filosofov</a>, <a href="/search/?searchtype=author&query=Gascon%2C+J">J. Gascon</a>, <a href="/search/?searchtype=author&query=Giuliani%2C+A">A. Giuliani</a>, <a href="/search/?searchtype=author&query=Gros%2C+M">M. Gros</a>, <a href="/search/?searchtype=author&query=Jin%2C+Y">Y. Jin</a>, <a href="/search/?searchtype=author&query=Juillard%2C+A">A. Juillard</a>, <a href="/search/?searchtype=author&query=Kleifges%2C+M">M. Kleifges</a>, <a href="/search/?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/2001.10272">arXiv:2001.10272</a> <span> [<a href="https://arxiv.org/pdf/2001.10272">pdf</a>, <a href="https://arxiv.org/format/2001.10272">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cosmology and Nongalactic Astrophysics">astro-ph.CO</span> </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/s10909-020-02370-0">10.1007/s10909-020-02370-0 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> QUBIC: the Q & U Bolometric Interferometer for Cosmology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/?searchtype=author&query=Battistelli%2C+E+S">E. S. Battistelli</a>, <a href="/search/?searchtype=author&query=Ade%2C+P">P. Ade</a>, <a href="/search/?searchtype=author&query=Alberro%2C+J+G">J. G. Alberro</a>, <a href="/search/?searchtype=author&query=Almela%2C+A">A. Almela</a>, <a href="/search/?searchtype=author&query=Amico%2C+G">G. Amico</a>, <a href="/search/?searchtype=author&query=Arnaldi%2C+L+H">L. H. Arnaldi</a>, <a href="/search/?searchtype=author&query=Auguste%2C+D">D. Auguste</a>, <a href="/search/?searchtype=author&query=Aumont%2C+J">J. Aumont</a>, <a href="/search/?searchtype=author&query=Azzoni%2C+S">S. Azzoni</a>, <a href="/search/?searchtype=author&query=Banfi%2C+S">S. Banfi</a>, <a href="/search/?searchtype=author&query=Battaglia%2C+P">P. Battaglia</a>, <a href="/search/?searchtype=author&query=Ba%C3%B9%2C+A">A. Ba霉</a>, <a href="/search/?searchtype=author&query=B%C3%A8lier%2C+B">B. B猫lier</a>, <a href="/search/?searchtype=author&query=Bennett%2C+D">D. Bennett</a>, <a href="/search/?searchtype=author&query=Berg%C3%A8%2C+L">L. Berg猫</a>, <a href="/search/?searchtype=author&query=Bernard%2C+J+-">J. -Ph. Bernard</a>, <a href="/search/?searchtype=author&query=Bersanelli%2C+M">M. Bersanelli</a>, <a href="/search/?searchtype=author&query=Bigot-Sazy%2C+M+-">M. -A. Bigot-Sazy</a>, <a href="/search/?searchtype=author&query=Bleurvacq%2C+N">N. Bleurvacq</a>, <a href="/search/?searchtype=author&query=Bonaparte%2C+J">J. Bonaparte</a>, <a href="/search/?searchtype=author&query=Bonis%2C+J">J. Bonis</a>, <a href="/search/?searchtype=author&query=Bottani%2C+A">A. Bottani</a>, <a href="/search/?searchtype=author&query=Bunn%2C+E">E. Bunn</a>, <a href="/search/?searchtype=author&query=Burke%2C+D">D. Burke</a>, <a href="/search/?searchtype=author&query=Buzi%2C+D">D. Buzi</a> , et al. (114 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="2001.10272v1-abstract-short" style="display: inline;"> The Q & U Bolometric Interferometer for Cosmology, QUBIC, is an innovative experiment designed to measure the polarization of the Cosmic Microwave Background and in particular the signature left therein by the inflationary expansion of the Universe. The expected signal is extremely faint, thus extreme sensitivity and systematic control are necessary in order to attempt this measurement. QUBIC addr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.10272v1-abstract-full').style.display = 'inline'; document.getElementById('2001.10272v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2001.10272v1-abstract-full" style="display: none;"> The Q & U Bolometric Interferometer for Cosmology, QUBIC, is an innovative experiment designed to measure the polarization of the Cosmic Microwave Background and in particular the signature left therein by the inflationary expansion of the Universe. The expected signal is extremely faint, thus extreme sensitivity and systematic control are necessary in order to attempt this measurement. QUBIC addresses these requirements using an innovative approach combining the sensitivity of Transition Edge Sensor cryogenic bolometers, with the deep control of systematics characteristic of interferometers. This makes QUBIC unique with respect to others classical imagers experiments devoted to the CMB polarization. In this contribution we report a description of the QUBIC instrument including recent achievements and the demonstration of the bolometric interferometry performed in lab. QUBIC will be deployed at the observation site in Alto Chorrillos, in Argentina at the end of 2019. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2001.10272v1-abstract-full').style.display = 'none'; document.getElementById('2001.10272v1-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 January, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 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">Accepted for publication in the Journal of Low Temperature Physics</span> </p> </li> </ol> <nav class="pagination is-small is-centered breathe-horizontal" role="navigation" aria-label="pagination"> <a href="" class="pagination-previous is-invisible">Previous </a> <a 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