Study on the $\varphi$-meson photoproduction off the proton target with the pentaquark-like $K^{\ast }\Sigma$ bound state $P_s$

Sang in Shim, Yongsun Kim, Seung-il Nam

We utilize the effective Lagrangian method within the tree-level Born approximation to explore $\varphi$-meson photoproduction, i.e., $\gamma p\to \varphi p$. Our analysis encompasses contributions…