Neutrino masses,leptonic flavor mixing,and muon(g−2)in the seesaw model with the U(1)L_(μ)-L_(r)gauge symmetry

作     者：Shun Zhou 周顺

作者机构：Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Physical SciencesUniversity of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第1期

页      面：1-11页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported in part by the National Natural Science Foundation of China(11775232,11835013) the CAS Center for Excellence in Particle Physics 

主　　题：neutrino masses anomalous muon magnetic moment U(1)gauge symmetry 

摘      要：The latest measurements of the anomalous muon magnetic moment a_(μ)≡(g_(μ)-2)/2show a 4:2σdiscrepancy between the theoretical prediction of the Standard Model and the experimental *** account for such a discrepancy,we consider a possible extension of the type-(I+II)seesaw model for neutrino mass generation with a gauged L_(μ)-L_(r)*** explicitly constructing an economical model with only one extra scalar singlet,we demonstrate that the gauge symmetry U(1)L_(μ)-L_(r)and its spontaneous breaking are crucial not only for explaining the muon result but also for generating the neutrino masses and leptonic flavor *** phenomenological implications and experimental constraints on the model parameters are also discussed.