Mon·Dec 22, 2014Monday·December 22, 2014

1. 01*

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

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

   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.

   ↳ nucl-thhep-phnucl-exPRC(2015)·17 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.