Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$

Meng-Lin Du, Vadim Baru, Feng-Kun Guo +4

Three hidden-charm pentaquark $P_c$ states, $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$ were revealed in the ${\Lambda }_b^0\to J/\psi p{K}^{-}$ process measured by LHCb using both run I and run II…