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Nucleon resonances in the γ p to φ K^+ Λ reaction near threshold

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arxiv 1412.6272 v4 pith:2D72IGEI submitted 2014-12-19 nucl-th hep-phnucl-ex

Nucleon resonances in the γ p to φ K^+ Λ reaction near threshold

classification nucl-th hep-phnucl-ex
keywords reactioncausedgammalambdamesonnearnucleonresonance
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate the $\gamma p \to \phi K^+ \Lambda$ 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 $N^*(1535)$ resonance caused by the $\eta$ 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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