Pentaquarks $$P_c$$ in a dynamical coupled-channel approach of $$\gamma p \rightarrow J/\psi p$$ reaction
Year: 2025
Type: article
Abstract: We construct a dynamical coupled-channel approach to photon-induced $$J/\psi $$ J / ψ production to search for the trace of the pentaquarks $$P_c.$$ P c . In this approach, the considered open-charm intermediate states are $$\Lambda _c \bar{D}^{(*)}$$ Λ c D ¯ ( ∗ ) and $$\Sigma _c \bar{D}^{(*)}.$$ Σ c D ¯ ( ∗ ) . Scattering amplitude involving $$\Lambda _c \bar{D}^{(*)},$$ Λ c D ¯ ( ∗ ) , $$\Sigma _c \bar{D}^{(*)}$$ Σ c D ¯ ( ∗ ) and $$J/\psi p$$ J / ψ p interactions is calculated from solving a set of coupled-channel integral equations. The coupled-channel interaction potentials are generated from one-boson-exchange. The pentaquarks $$P_c$$ P c are dynamically generated from the coupled-channel interactions. Moreover, the background contributions to the $$P_c$$ P c signals are assumed to be the Pomeron exchange and $$\sigma $$ σ ex
Source: The European Physical Journal C
Author: Xu Zhang
Institution: Chinese Academy of Sciences
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414998641