Bayesian inference of the resonance content of p(gamma,K+)Lambda

Abstract

A Bayesian analysis of the world's p(gamma,K+)Lambda data is presented. We adopt a Regge-plus-resonance framework featuring consistent couplings for nucleon resonances up to spin J=5/2, and evaluate 2048 model variants considering all possible combinations of 11 candidate resonances. The best model, labeled RPR-2011, is discussed with special emphasis on nucleon resonances in the 1900-MeV mass region.

Comments: 4 pages, 1 figure, 1 table; Proceedings 12th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2012