Single neutral heavy lepton production at electron-muon colliders

Abstract

New heavy Majorana and Dirac neutrinos production at future electron-muon colliders are investigated. The production of a single heavy neutrino is shown to be more relevant than pair production when comparing cross sections and neutrino mass ranges. The process $e^{\pm }{\mu }^{\mp }⟶\nu {\ell }^{\pm }{W}^{\mp }$ is studied including on-shell and off-shell heavy neutrino effects. Distributions are calculated including hadronization effects and experimental cuts that suppress background, in order to have a clear signal for heavy neutral leptons.

Comments: 4 pages, 14 jpg figures, Published Phys.Lett B494 (2000) 273-279