摘要
A nonzero neutrino mass may be a sign of new physics beyond the standard model(SM).To explain the small neutrino mass,we can extend the SM using right-handed Majorana neutrinos in a low-scale seesaw mechanism,and the CP violation effect can be induced due to the CP phase in the interference of heavy Majorana neutrinos.The existence of heavy Majorana neutrinos may lead to lepton number violation processes,which can be used to search for the signals of heavy Majorana neutrinos.In this paper,we focus on the CP violation effect related to two generations of heavy Majorana neutrinos at 15 GeV<m_(N1)<70 GeV in the pair production of W bosons and rare decays.It is valuable to investigate Majorana neutrino production signals and the related CP violation effects in rare W boson decays at future lepton colliders.
作者
路鹏程
司宗国
王喆
杨兴华
张新怡
Peng-Cheng Lu;Zong-Guo Si;Zhe Wang;Xing-Hua Yang;Xin-Yi Zhang(School of Physics,Shandong University,Jinan 250100,China;School of Physics and Optoelectronic Engineering,Shandong University of Technology,Zibo 255000,China)
基金
Supported in part by the National Natural Science Foundation of China(12235008,11875179)
the Natural Science Foundation of Shandong Province,China(ZR2021QA040)。