WIMP Dark Matter Search using a 3.1 Tonne-Year Exposure of the XENONnT Experiment
E. Aprile, J. Aalbers, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, S. R. Armbruster, F. Arneodo, L. Baudis, M. Bazyk, L. … 展开作者
E. Aprile, J. Aalbers, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, S. R. Armbruster, F. Arneodo, L. Baudis, M. Bazyk, L. Bellagamba, R. Biondi, A. Bismark, K. Boese, A. Brown, G. Bruno, R. Budnik, C. Cai, C. Capelli, J. M. R. Cardoso, A. P. Cimental Chávez, A. P. Colijn, J. Conrad, J. J. Cuenca-García, V. D'Andrea, L. C. Daniel Garcia, M. P. Decowski, A. Deisting, C. Di Donato, P. Di Gangi, S. Diglio, K. Eitel, S. el Morabit, A. Elykov, A. D. Ferella, C. Ferrari, H. Fischer, T. Flehmke, M. Flierman, D. Fuchs, W. Fulgione, C. Fuselli, P. Gaemers, R. Gaior, F. Gao, S. Ghosh, R. Giacomobono, F. Girard, R. Glade-Beucke, L. Grandi, J. Grigat, H. Guan, M. Guida, P. Gyorgy, R. Hammann, A. Higuera, C. Hils, L. Hoetzsch, N. F. Hood, M. Iacovacci, Y. Itow, J. Jakob, F. Joerg, Y. Kaminaga, M. Kara, P. Kavrigin, S. Kazama, P. Kharbanda, M. Kobayashi, D. Koke, K. Kooshkjalali, A. Kopec, H. Landsman, R. F. Lang, L. Levinson, I. Li, S. Li, S. Liang, Z. Liang, Y. -T. Lin, S. Lindemann, M. Lindner, K. Liu, M. Liu, J. Loizeau, F. Lombardi, J. Long, J. A. M. Lopes, G. M. Lucchetti, T. Luce, Y. Ma, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, F. Marignetti, T. Marrodán Undagoitia, K. Martens, J. Masbou, S. Mastroianni, A. Melchiorre, J. Merz, M. Messina, A. Michael, K. Miuchi, A. Molinario, S. Moriyama, K. Morå, Y. Mosbacher, M. Murra, J. Müller, K. Ni, U. Oberlack, B. Paetsch, Y. Pan, Q. Pellegrini, R. Peres, C. Peters, J. Pienaar, M. Pierre, G. Plante, T. R. Pollmann, L. Principe, J. Qi, J. Qin, D. Ramírez García, M. Rajado, A. Ravindran, A. Razeto, R. Singh, L. Sanchez, J. M. F. dos Santos, I. Sarnoff, G. Sartorelli, J. Schreiner, P. Schulte, H. Schulze Eißing, M. Schumann, L. Scotto Lavina, M. Selvi, F. Semeria, P. Shagin, S. Shi, J. Shi, M. Silva, H. Simgen, A. Stevens, C. Szyszka, A. Takeda, Y. Takeuchi, P. -L. Tan, D. Thers, G. Trinchero, C. D. Tunnell, F. Tönnies, K. Valerius, S. Vecchi, S. Vetter, F. I. Villazon Solar, G. Volta, C. Weinheimer, M. Weiss, D. Wenz, C. Wittweg, V. H. S. Wu, Y. Xing, D. Xu, Z. Xu, M. Yamashita, J. Yang, L. Yang, J. Ye, L. Yuan, G. Zavattini, Y. Zhao, M. Zhong
We report on a search for weakly interacting massive particle (WIMP) dark matter (DM) via elastic DM-xenon-nucleus interactions in the XENONnT experiment. We combine datasets from the first and second science campaigns resulting in a total exposure of 3.1 tonne-years. In a blind analysis of nuclear recoil events with energies above $3.8\,\mathrm{keV_{NR}}$, we find no significant excess above background. We set new upper limits on the spin-independent WIMP-nucleon scattering cross section for WIMP masses above $10\,\mathrm{GeV}/c^2$ with a minimum of $1.7\,\times\,10^{-47}\,\mathrm{cm^2}$ at $90\,\%$ confidence level for a WIMP mass of $30\,\mathrm{GeV}/c^2$. We achieve a best median sensitivity of $1.4\,\times\,10^{-47}\,\mathrm{cm^2}$ for a $41\,\mathrm{GeV}/c^2$ WIMP. Compared to the result from the first XENONnT science dataset, we improve our sensitivity by a factor of up to 1.8.
Light Dark Matter Search with 7.8 Tonne-Year of Ionization-Only Data in XENONnT
Columbia University(哥伦比亚大学);Nikhef and the University of Groningen, Van Swinderen Institute(荷兰核粒子物理研究所和格罗宁根大学范斯温德伦研究所);Kamioka Observatory, Institute for Cosmic Ray Research, and Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo(东京宇宙线研究所神冈观测站及汤川理论物理数学研究所(WPI),东京大学);University of Zürich(苏黎世大学);LPNHE, Sorbonne Université, CNRS/IN2P3(巴黎大索邦大学、法国国家科学研究中心/欧洲核子研究组织粒子与高能物理实验室);University of Münster(明斯特大学);INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute(意大利国家核物理研究所格兰萨索国家实验室及格兰萨索科学研究所);University of Chicago(芝加哥大学);Max-Planck-Institut für Kernphysik(马克斯·普朗克核物理研究所);New York University Abu Dhabi - Center for Astro, Particle and Planetary Physics(纽约大学阿布扎比分校天体、粒子和行星物理中心);SUBATECH, IMT Atlantique, CNRS/IN2P3, Nantes Université(南特大学、大西洋高等矿业学院、法国国家科学研究中心/欧洲核子研究组织亚原子技术与高能物理实验室)
Lawrence Berkeley National Laboratory(劳伦斯伯克利国家实验室);University of California, Berkeley(加州大学伯克利分校);INFN, Sezione di Firenze(意大利国家核物理研究所佛罗伦萨分部);LAPTh, Université Savoie Mont-Blanc et CNRS(萨瓦蒙布朗大学与法国国家科学研究中心拉普特实验室)
Search for Magnetic and Spin-Independent Inelastic Dark Matter with XENONnT
Columbia University(哥伦比亚大学);Nikhef and the University of Groningen, Van Swinderen Institute(尼霍夫研究所与格罗宁根大学范斯温德伦研究所);Kamioka Observatory, Institute for Cosmic Ray Research, and Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo(东京大学神冈观测站、宇宙线研究所及宇宙物理与数学卡弗里研究所(WPI));Department of Particle Physics and Astrophysics, Weizmann Institute of Science(魏茨曼科学研究所粒子物理与天体物理学系);Physik-Institut, University of Zürich(苏黎世大学物理研究所);LPNHE, Sorbonne Université, CNRS/IN2P3(索邦大学国家科学研究中心/法国国家原子能和替代能源委员会高能物理实验室);Institut für Kernphysik, Westfälische Wilhelms-Universität Münster(明斯特西发利亚威廉大学核物理研究所);INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute(意大利国家核物理学院大萨索国家实验室与大萨索科学研究所);Department of Physics & Kavli Institute for Cosmological Physics, University of Chicago(芝加哥大学物理系及宇宙物理卡弗里研究所);Max-Planck-Institut für Kernphysik(马克斯·普朗克核物理研究所);New York University Abu Dhabi - Center for Astro, Particle and Planetary Physics(纽约大学阿布扎比分校天文、粒子与行星物理中心);Physik-Institut(物理研究所)
Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB
DEAP-3600是一个单相液氩(LAr)直接探测暗物质实验,在SNOLAB(加拿大萨德伯里)地下2公里处运行。该探测器由3279公斤的LAr包含在一个球形丙烯酸容器。本文报告了在运行的第一年期间,在231个存活日期间,对758吨\cdot日暴露量进行的分析。在所关注的WIMP搜索区域中没有观察到候选信号事件,这导致在90\% C下对于100 GeV/c $^{2}$(1 TeV/c $^{2}$)WIMP质量,LAr靶上WIMP-核子自旋无关截面的领先极限为$3.9\times10^{-45}$ cm $^{2}$($1.5\times10^{-44}$ cm $^{2}$)。L.除了一个详细的背景模型,该分析表明,最好的脉冲形状歧视在LAr阈值,采用贝叶斯光电子计数技术,以提高能量分辨率和歧视效率,并利用两个位置重建算法的基础上PMT电荷和光子到达时间。
Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
State Key Laboratory of Dark Matter Physics, Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University(上海交通大学物理与天文学院、紫江研究院暗物质国家重点实验室);Key Laboratory for Particle Astrophysics and Cosmology (MOE) & Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University(上海交通大学粒子天体物理与宇宙学教育部重点实验室、上海粒子物理与宇宙学重点实验室);Indian Institute of Science Education and Research - Bhopal(印度科学教育研究所博帕尔分校)