Search for exotic interactions of solar neutrinos in the CDEX-10 experiment

X. P. Geng,L. T. Yang,Q. Yue,K. J. Kang,Y. J. Li,H. P. An,C. Greeshma, J. P. Chang,Y. H. Chen, J. P. Chang,W. H. Dai,Z. Deng,C. H. Fang,H. Gong,Q. J. Guo,X. Y. Guo, L. He,S. M. He,J. W. Hu,H. X. Huang,T. C. Huang,H. T. Jia,X. Jiang,S. Karmakar,H. B. Li, J. M. Li, J. Li,Q. Y. Li, R. M. J. Li,X. Q. Li,Y. L. Li,Y. F. Liang,B. Liao,F. K. Lin,S. T. Lin,J. X. Liu,S. K. Liu, Y. D. Liu, Y. Liu, Y. Y. Liu, Z. Z. Liu,H. Ma,Y. C. Mao,Q. Y. Nie,J. H. Ning,H. Pan,N. C. Qi,J. Ren,X. C. Ruan,Z. She,M. K. Singh,T. X. Sun,C. J. Tang,W. Y. Tang,Y. Tian, G. F. Wang,L. Wang, Q. Wang, Y. F. Wang, Y. X. Wang,H. T. Jia,S. Y. Wu,Y. C. Wu,H. Y. Xing,R. Xu,Y. Xu,T. Xue,Y. L. Yan,N. Yi,C. X. Yu,H. J. Yu,J. F. Yue,M. Zeng,Z. Zeng,B. T. Zhang, F. S. Zhang, L. Zhang, Z. H. Zhang, Z. Y. Zhang,K. K. Zhao,M. G. Zhao,J. F. Zhou,Z. Y. Zhou,J. J. Zhu,Y. C. Wu

arXiv (Cornell University)（2023）

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摘要

We investigate exotic neutrino interactions using the 205.4-kg & BULL; day dataset from the CDEX-10 experiment at the China Jinping Underground Laboratory. New constraints on the mass and couplings of new gauge bosons are presented. Two nonstandard neutrino interactions are considered: a Uo1 thorn B-L gauge-boson-induced interaction between an active neutrino and electron/nucleus, and a dark-photon -induced interaction between a sterile neutrino and electron/nucleus via kinetic mixing with a photon. This work probes an unexplored parameter space involving sterile neutrino coupling with a dark photon. New laboratory limits are derived on dark photon masses below 1 eV/c2 at some benchmark values of & UDelta;m241 and g02sin22 & theta;14.

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solar neutrinos,exotic interactions

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