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Coupled channel study of K+Λ photoproduction

B. Julia-Diaz, B. Saghai, T. -S. H. Lee, F. Tabakin

nucl-tharXiv:nucl-th/0512010

Abstract

A coupled channel model with γN, KY and πN channels has been used to analyze the recent data of γp K+ Λ. The non-resonant interactions within the subspace KY πN 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) O(3) breaking. Missing baryon resonances issues are briefly discussed.

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