Looking for the hidden-charm pentaquark resonances in $J/ψp$ scattering

Abstract

In the framework of quark delocalization color screening model, the three new reported pentaquarks $P_{c}(4312)$, $P_{c}(4440)$, and $P_{c}(4457)$ can be identified as the hidden-charm molecular states $Σ_{c}D$ with $J^{P}=\frac{1}{2}^{-}$, $Σ_{c}D^{*}$ with $J^{P}=\frac{3}{2}^{-}$, and $Σ_{c}D^{*}$ with $J^{P}=\frac{1}{2}^{-}$, in the baryon-meson scattering process, respectively. Besides, the $Σ^{*}_{c}D^{*}$ of both $J^{P}=\frac{1}{2}^{-}$ and $J^{P}=\frac{3}{2}^{-}$ are also possible molecular pentaquarks. Moreover, the calculation is extended to the $P_{c}-$like molecular pentaquarks $P_{b}$. Several states with masses above $11$ GeV and narrow width are obtained. All these heavy pentaquarks are worth searching in the future experiments.

5 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1811.04260