Search for heavy Majorana neutrinos in the $\tau$ final state at proton-electron colliders

Haiyong Gu, Ying-nan Mao, Hao Sun +1

We utilize the lepton number violation signal process $p{e}^{-}\to {\tau }^{+}jjj$ to search for heavy Majorana neutrinos at future proton-electron colliders. The LHeC (FCC-eh) is conside…