Searches for the baryon- and lepton-number violating decays $B^0\to {\Lambda }_c^{+}{\ell }^{-}$, $B^{-}\to \Lambda {\ell }^{-}$, and $B^{-}\to \bar{\Lambda }{\ell }^{-}$

P. del Amo Sanchez et al.

Searches for $B$ mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either ${\Lambda }_c$ or $\Lambda$ and the lepton is a muon or an electron. Th…