Angular distributions for ${\Lambda }_b\to {\Lambda }_J^{\ast }(p{K}^{-})J/\psi$ Decays

Zhi-Peng Xing, Fei Huang, Wei Wang

We carry out an analysis of the multibody decay cascade ${\Lambda }_b\to {\Lambda }_J^{\ast }J/\psi \to p{K}^{-}J/\psi$ with the ${\Lambda }_J^{\ast }$ resonance including ${\Lambda }_{1520}^{\ast },{\Lambda }_{1600}^{\ast }$, and ${\Lambda }_{1800}^{\ast }$, and $J/\psi$ re…