Sensitivity limits on heavy-light mixing $|U_{\mu N}{|}^2$ from lepton number violating $B$ meson decays

Gorazd Cvetic, C. S. Kim

We consider the lepton number violating decays $B\to {\mu }^{\pm }{\mu }^{\pm }{\pi }^{\mp }$ and $B\to D^{(\ast )}{\mu }^{\pm }{\mu }^{\pm }{\pi }^{\mp }$ which may be detected at LHCb and Belle-II experiments; a…