Search for heavy Majorana neutrinos at future lepton colliders

Abstract

The nonzero neutrino mass can be a signal for new physics beyond the standard model. To explain the tiny neutrino mass, we can extend the standard model with right-handed Majorana neutrinos in a low-scale seesaw mechanism, while 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 as a probe to search for the signal of heavy Majorana neutrinos. In this paper, we focus on the CP violation effect related to two generations of heavy Majorana neutrinos for $15$ GeV $<m_N<$ $70$ GeV in the pair production of W bosons and rare decays. It is valuable to investigate the Majorana neutrino production signals and the related CP violation effects in the W boson rare decays at future lepton colliders.

12 pages, 8 figures

References in corpus (11)

• Correlation between the Charged Current Interactions of Light and Heavy Majorana Neutrinos
• Probing the Majorana neutrinos and their CP violation in decays of charged scalar mesons $\pi ,K,D,D_s,B,B_c$
• Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model
• Heavy Neutrinos and the Kinematics of Tau Decays
• Majorana neutrinos and lepton-number-violating signals in top-quark and W-boson rare decays
• Collider Searches for Heavy Neutral Leptons: beyond simplified scenarios
• Study Majorana Neutrino Contribution to B-meson Semi-leptonic Rare Decays
• Heavy neutrinos at future linear e${}^{+}$e${}^{-}$ colliders
• CP Violation in Rare Lepton-Number-Violating $W$ Decays at the LHC
• The study of two quasi-degenerate heavy sterile neutrinos in rare meson decays
• Measuring CP violation in rare $W$ decays at the LHC

Cited by in corpus (1)

• Optimal search reach for heavy neutral leptons at a muon collider