The resonances $X(4140)$, $X(4160)$, and $P_{cs}(4459)$ in the decay of ${\Lambda }_b\to J/\psi \Lambda \varphi$

Wen-Ying Liu, Wei Hao, Guan-Ying Wang +3

We study the decay of ${\Lambda }_b\to J/\psi \Lambda \varphi$ by taking into account the intermediate resonances $X(4140)$, $X(4160)$, and $P_{cs}(4459)$. In addition to the peak of the $X(4140)$, we also…