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arXiv · 1412.6272

Nucleon resonances in the $γp \to ϕK^+ Λ$ reaction near threshold

Qi-Fang Lü·Rong Wang·Ju-Jun Xie·Xu-Rong Chen·De-Min Li
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Abstract

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

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Qi-Fang Lü, Rong Wang, Ju-Jun Xie, Xu-Rong Chen, De-Min Li. 2015-11-26. Nucleon resonances in the $γp \to ϕK^+ Λ$ reaction near threshold. https://doi.org/10.1103/physrevc.91.035204

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