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arXiv 2408.02877hep-exastro-ph.SRnucl-exphysics.ins-det
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首次通过XENONnT实验观测到太阳$^8$B中微子的相干弹性中微子-核散射

First Indication of Solar $^8$B Neutrinos via Coherent Elastic Neutrino-Nucleus Scattering with XENONnT

Columbia University(哥伦比亚大学);Nikhef and the University of Groningen, Van Swinderen Institute(NIKHEF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Kavli宇宙物理数学研究所(WPI));LPNHE, Sorbonne Université, CNRS/IN2P3(索邦大学LPNHE实验室,CNRS/IN2P3);Institut für Kernphysik, University of Münster(明斯特大学核物理研究所);INAF-Astrophysical Observatory of Torino, Department of Physics, University of Torino and INFN-Torino(都灵大学天体物理研究所INFAS、物理系及INFN-都灵分部);INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute(INFN大萨索国家实验室与大萨索科学研究所);Department of Physics, Enrico Fermi Institute & Kavli Institute for Cosmological Physics, University of Chicago(芝加哥大学物理系、恩里科·费米研究所及Kavli宇宙物理研究所);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, University of Zürich(苏黎世大学物理研究所);SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes(南特大学SUBATECH实验室,IMT大西洋学院,CNRS/IN2P3);Department of Physics and Astronomy, University of Bologna and INFN-Bologna(博洛尼亚大学物理与天文学系及INFN-博洛尼部分部)
E. Aprile, J. Aalbers, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, F. Arneodo, L. Baudis, M. Bazyk, L. Bellagamba, R. Bio… 展开作者

E. Aprile, J. Aalbers, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, 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, A. Elykov, A. D. Ferella, C. Ferrari, H. Fischer, T. Flehmke, M. Flierman, W. Fulgione, C. Fuselli, P. Gaemers, R. Gaior, M. Galloway, F. Gao, S. Ghosh, R. Giacomobono, 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, M. Kobayashi, D. Koke, A. Kopec, F. Kuger, H. Landsman, R. F. Lang, L. Levinson, I. Li, S. Li, S. Liang, Y. -T. Lin, S. Lindemann, M. Lindner, K. Liu, M. Liu, J. Loizeau, F. Lombardi, J. Long, J. A. M. Lopes, T. Luce, Y. Ma, C. Macolino, J. Mahlstedt, A. Mancuso, L. Manenti, F. Marignetti, T. Marrodán Undagoitia, K. Martens, J. Masbou, E. Masson, 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, 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. Takeda, P. -L. Tan, D. Thers, F. Toschi, 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, L. Yang, J. Ye, L. Yuan, G. Zavattini, M. Zhong

AI总结:

XENONnT首次通过相干弹性中微子-核散射探测到太阳$^8$B中微子,测量到中微子通量与截面,与标准模型预测一致。

摘要:

我们报告了通过XENONnT暗物质实验首次测量太阳$^8$B中微子通过相干弹性中微子-核散射引起的核 recoil 的结果。XENONnT的中心探测器是一个低背景、双相时间投影室,具有5.9吨敏感液氙靶。盲分析结果表明,3.51吨·年曝光量下观测到37个事件,其能量高于0.5 keV,预期背景事件为(26.4±1.4)事件。背景假设被拒绝,统计显著性为2.73σ。测量的$^8$B太阳中微子通量为(4.7±2.3^{+3.6})×10^6 cm^{-2}s^{-1},与Sudbury Neutrino Observatory的结果一致。测量的中微子通量加权CEνNS散射截面在Xe上为(1.1±0.8_{-0.5})×10^{-39} cm^2,与标准模型预测一致。这是首次通过暗物质探测器直接测量太阳中微子引起的核 recoil。

英文摘要:

We present the first measurement of nuclear recoils from solar $^8$B neutrinos via coherent elastic neutrino-nucleus scattering with the XENONnT dark matter experiment. The central detector of XENONnT is a low-background, two-phase time projection chamber with a 5.9 t sensitive liquid xenon target. A blind analysis with an exposure of 3.51 t$\times$yr resulted in 37 observed events above 0.5 keV, with ($26.4^{+1.4}_{-1.3}$) events expected from backgrounds. The background-only hypothesis is rejected with a statistical significance of 2.73 $σ$. The measured $^8$B solar neutrino flux of $(4.7_{-2.3}^{+3.6})\times 10^6 \mathrm{cm}^{-2}\mathrm{s}^{-1}$ is consistent with results from the Sudbury Neutrino Observatory. The measured neutrino flux-weighted CE$ν$NS cross section on Xe of $(1.1^{+0.8}_{-0.5})\times10^{-39} \mathrm{cm}^2$ is consistent with the Standard Model prediction. This is the first direct measurement of nuclear recoils from solar neutrinos with a dark matter detector.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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