Searching for lepton number violating $\Lambda$ baryon decays mediated by GeV-scale Majorana neutrino with LHCb

Guangshuai Zhang, Bo-Qiang Ma

We consider the lepton-number-violating processes in ${\Lambda }_b$/${\Lambda }_c$ decays mediated by on-shell GeV-scale sterile neutrino. We calculate the branching ratio for the following processe…