文献类型：期刊文献

英文题名：Signature of heavy sterile neutrinos at CEPC

作者：Liao, Wei[1]; Wu, Xiao-Hong[1]

机构：[1] Institute of Modern Physics, School of Science, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237

年份：2017

外文期刊名：arXiv

收录：EI(收录号：20200474798)

语种：英文

外文关键词：Neutrons

摘要：We study the production of heavy sterile neutrino N, e+e-! N, at the Circular Electron Positron Collider(CEPC) and its ljj signal in its decay to three charged fermions. We study background events for this process which are mainly events coming from W pair production. We study the production of a single heavy sterile neutrino and the sensitivity of CEPC to the mixing of sterile neutrino with active neutrinos. We study the production of two degenerate heavy sterile neutrinos in a low energy see-saw model by taking into account the constraints on mixings of sterile neutrinos from the neutrino-less double decay experiment and the masses and mixings of active neutrinos. We show that CEPC under proposal has a good sensitivity to the mixing of sterile neutrinos with active neutrinos for a mass of sterile neutrino around 100 GeV. Copyright ? 2017, The Authors. All rights reserved.