Coupled channel study of $K^+Λ$ photoproduction

Details Coupled channel study of $K^+Λ$ photoproduction Coupled channel study of $K^+Λ$ photoproduction

2005-12-03

arxiv.org/abs/nucl-th/0512010v1

Physics

Nuclear Physics

Nuclear Theory

Part of the proceedings of the International Workshop on the Physics of Excited Baryons NSTAR05, 12-15 October 2005, Tallahass

Scientific paper

10.1016/j.nuclphysa.2005.03.056

A coupled channel model with $\gamma N$, $KY$ and $\pi N$ channels has been used to analyze the recent data of $\gamma p \to K^+ \Lambda$. The non-resonant interactions within the subspace $KY \oplus \pi N$ are derived from effective Lagrangians using a unitary transformation method. The direct photoproduction reaction is obtained from a chiral constituent quark model with $SU(6)\otimes O(3)$ breaking. Missing baryon resonances issues are briefly discussed.

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