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

Nuclear Theory 2015-12-02 v4 High Energy Physics - Phenomenology Nuclear Experiment
Authors: Qi-Fang Lü , Rong Wang , Ju-Jun Xie , Xu-Rong Chen , De-Min Li
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Abstract

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

Keywords

nucleon resonances effective Lagrangian approach isobar model $\gamma p \to \phi K^+ \Lambda$ reaction $N^*(1535)$ resonance meson exchange total cross section angular distributions

Cite

@article{arxiv.1412.6272,
  title  = {Nucleon resonances in the $\gamma p \to \phi K^+ \Lambda$ reaction near threshold},
  author = {Qi-Fang Lü and Rong Wang and Ju-Jun Xie and Xu-Rong Chen and De-Min Li},
  journal= {arXiv preprint arXiv:1412.6272},
  year   = {2015}
}

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