FCNC transitions of ${\Lambda }_b$ to neutron in Bethe-Salpeter equation approach

Liang-Liang Liu, Chao Wang, Xian-Wei Kang +1

In a covariant quark-diquark model, we investigate the rare decay of ${\Lambda }_b\to n{l}^{+}{l}^{-}$ and ${\Lambda }_b\to n\gamma$ in the Bethe-Salpeter equation approach. In this model th…