XENONnT 暗物质实验的 WIMP 预期灵敏度
仪器与探测器
2020-11-18 v2 宇宙学与河外天体物理
高能物理 - 实验
摘要
XENONnT 是一个位于 INFN 格兰萨索国家实验室的暗物质直接探测实验，采用 5.9 吨可探测液体氙。本工作中，我们预测实验本底并推算 XENONnT 对弱相互作用大质量粒子（WIMPs）探测的灵敏度。在 4 吨 fiducial 质量下，感兴趣能量区（电子反冲对应 (1, 13) keV、核反冲对应 (4, 50) keV）内的预期平均微分本底率分别为 (keV t y) 与 (keV t y)。我们使用轮廓构造法计算统一置信区间，以确保恰当的覆盖。以 20 ty 曝光量目标，对自旋无关 WIMP-核子相互作用的预期灵敏度在 90% 置信水平下达到 cm（对应 50 GeV/c 质量 WIMP），比当前由 XENON1T 设下的最佳极限高出逾一个数量级。此外，我们表明对于截面高于 cm（ cm）的 50 GeV/c WIMP，XENONnT 的中位发现显著性超过 3（5）。对 WIMP 与中子（质子）自旋相关耦合的预期灵敏度分别达到 cm（ cm）。
引用
@article{arxiv.2007.08796,
title = {Projected WIMP Sensitivity of the XENONnT Dark Matter Experiment},
author = {The XENON collaboration and E. Aprile and J. Aalbers and F. Agostini and M. Alfonsi and L. Althueser and F. D. Amaro and V. C. Antochi and E. Angelino and J. R. Angevaare and F. Arneodo and D. Barge and L. Baudis and B. Bauermeister and L. Bellagamba and M. L. Benabderrahmane and T. Berger and A. Brown and E. Brown and S. Bruenner and G. Bruno and R. Budnik and C. Capelli and J. M. R. Cardoso and D. Cichon and B. Cimmino and M. Clark and D. Coderre and A. P. Colijn and J. Conrad and J. P. Cussonneau and M. P. Decowski and A. Depoian and P. Di Gangi and A. Di Giovanni and R. Di Stefano and S. Diglio and A. Elykov and G. Eurin and A. D. Ferella and W. Fulgione and P. Gaemers and R. Gaior and M. Galloway and F. Gao and L. Grandi and C. Hasterok and C. Hils and K. Hiraide and L. Hoetzsch and J. Howlett and M. Iacovacci and Y. Itow and F. Joerg and N. Kato and S. Kazama and M. Kobayashi and G. Koltman and A. Kopec and H. Landsman and R. F. Lang and L. Levinson and Q. Lin and S. Lindemann and M. Lindner and F. Lombardi and J. Long and J. A. M. Lopes and E. López Fune and C. Macolino and J. Mahlstedt and A. Mancuso and L. Manenti and A. Manfredini and F. Marignetti and T. Marrodán Undagoitia and K. Martens and J. Masbou and D. Masson and S. Mastroianni and M. Messina and K. Miuchi and K. Mizukoshi and A. Molinario and K. Morå and S. Moriyama and Y. Mosbacher and M. Murra and J. Naganoma and K. Ni and U. Oberlack and K. Odgers and J. Palacio and B. Pelssers and R. Peres and J. Pienaar and V. Pizzella and G. Plante and J. Qin and H. Qiu and D. Ramírez García and S. Reichard and A. Rocchetti and N. Rupp and J. M. F. dos Santos and G. Sartorelli and N. Šarčević and M. Scheibelhut and J. Schreiner and D. Schulte and M. Schumann and L. Scotto Lavina and M. Selvi and F. Semeria and P. Shagin and E. Shockley and M. Silva and H. Simgen and A. Takeda and C. Therreau and D. Thers and F. Toschi and G. Trinchero and C. Tunnell and K. Valerius and M. Vargas and G. Volta and H. Wang and Y. Wei and C. Weinheimer and M. Weiss and D. Wenz and C. Wittweg and Z. Xu and M. Yamashita and J. Ye and G. Zavattini and Y. Zhang and T. Zhu and J. P. Zopounidis},
journal= {arXiv preprint arXiv:2007.08796},
year = {2020}
}