Nucleon resonances in the $\gamma p\to \varphi K^{+}\Lambda$ reaction near threshold

Abstract

We investigate the $\gamma p\to \varphi K^{+}\Lambda$ reaction near threshold within an effective Lagrangian approach and the isobar model. Various nucleon resonances caused by the $\pi$ and $\eta$ meson exchanges and background contributions are considered. It is shown that the contribution from the $N^{\ast }(1535)$ resonance caused by the $\eta$ meson exchange plays the predominant role. Hence, this reaction provides a good new platform to study the $N^{\ast }(1535)$ resonance. The predicted total cross section and specific features of angular distributions can be tested by future experiments.

Publised version

References in corpus (12)

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Cited by in corpus (5)

• Neutral hidden charm pentaquark states $P_c^0(4380)$ and $P_c^0(4450)$ in ${\pi }^{-}p\to J/\psi n$ reaction
• Role of the $N^{\ast }(1535)$ in the ${\Lambda }_c^{+}\to {\bar{K}}^0\eta p$ decay
• The $\varphi (2170)$ production in the process $\gamma p\to \eta \varphi p$
• Nucleon resonance production in the $\gamma p\to p\eta \varphi$ reaction
• Near-threshold $\eta$ production in $pp$ collisions