Study of ${\Lambda }_b\to \Lambda (\varphi ,{\eta }^{(\prime )})$ and ${\Lambda }_b\to \Lambda K^{+}{K}^{-}$ decays

C. Q. Geng, Y. K. Hsiao, Yu-Heng Lin +1

We study the charmless two-body ${\Lambda }_b\to \Lambda (\varphi ,{\eta }^{(\prime )})$ and three-body ${\Lambda }_b\to \Lambda K^{+}{K}^{-}$ decays. We obtain $\mathcal{B}({\Lambda }_b\to \Lambda \varphi )=(3.53\pm 0.24)\times 10^{-6}$ to agree with the r…