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arXiv 2607.18378astro-ph.COhep-exhep-phphysics.ins-det

用RES-NOVA探测大质量分裂的非弹性暗物质

Probing large mass-splitting inelastic Dark Matter with RES-NOVA

D. Alloni, G. Benato, P. Carniti, M. Cataldo, L. Chen, M. Clemenza, M. Consonni, G. Croci, I. Dafinei, F. A. Danevich, C. de Vecchi, D. Di Martino, R. Elleboro,… 展开作者

D. Alloni, G. Benato, P. Carniti, M. Cataldo, L. Chen, M. Clemenza, M. Consonni, G. Croci, I. Dafinei, F. A. Danevich, C. de Vecchi, D. Di Martino, R. Elleboro, N. Ferreiro Iachellini, F. Ferroni, F. Filippini, S. Ghislandi, A. Giachero, L. Gironi, P. Gorla, C. Gotti, D. L. Helis, D. V. Kasperovych, V. V. Kobychev, G. Marcucci, A. Melchiorre, A. Menegolli, S. Nisi, M. Musa, L. Pagnanini, L. Pattavina, G. Pessina, S. Pirro, S. Pozzi, M. C. Prata, A. Puiu, S. Quitadamo, M. P. Riccardi, M. Rossella, R. Rossini, E. Sala, F. Saliu, A. Salvini, V. I. Tretyak, L. Trombetta, D. Trotta, H. Yuan, J. Luengas, H. Ramani

AI总结:

研究用RES-NOVA探测器探测大质量分裂的非弹性暗物质,利用其特征在特定能量范围分析曝光量,将直接探测约束扩展到现有技术范围外,在不同基准下探测更高分裂,未来曝光还将探索新参数空间。

AI中文摘要:

探测大质量分裂的非弹性暗物质需要重靶核、扩展的反冲能量范围和暗物质分布的高速尾部。我们利用RES-NOVA原型探测器来利用这些特征,该探测器具有由考古铅制成的PbWO4低温量热计,在意大利格兰萨索的INFN地下实验室运行。在标准晕模型(SHM)和麦哲伦星云(LMC)激发的速度分布下,分析了2.5keV至1MeV范围内32.4g天的曝光量。我们将直接探测约束扩展到现有技术(如基于氙的TPC)的330keV范围之外,在SHM(LMC)基准中探测高达510(780)keV的分裂,未来的曝光将探测参数空间的新区域。

英文摘要:

Probing inelastic dark matter at large mass splittings requires heavy target nuclei, an extended recoil-energy range, and the high-velocity tail of the dark-matter distribution. We exploit these features with the RES-NOVA prototype detector, featuring a PbWO4 cryogenic calorimeter, produced from archaeological Pb and operated at the deep-underground laboratory of Gran Sasso of INFN (Italy), analyzing a 32.4 g day exposure over 2.5 keV - 1 MeV under both the Standard Halo Model (SHM) and a Large Magellanic Cloud (LMC)-motivated velocity distribution. We extend direct-detection constraints beyond the 330 keV reach of established technologies (e.g. Xe-based TPCs), probing splittings up to 510 (780) keV in the SHM (LMC) benchmark, while future exposures will probe new regions of the parameter space.

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