Bayesian inference of the resonance content of p(γ,K+)Λ.
A bayesian analysis of the world's p(γ,K^+)Λ data is presented. From the proposed selection of 11 resonances, we find that the following nucleon resonances have the highest probability of contributing to the reaction: S11(1535), S11(1650), F15(1680), P13(1720), D13(1900), P13(1900), P11(1900), and F15(2000). We adopt a Regge-plus-resonance framework featuring consistent couplings for nucleon resonances up to spin J=5/2. We evaluate all possible combinations of 11 candidate resonances. The best model is selected from the 2048 model variants by calculating the bayesian evidence values against the world's p(γ,K+)Λ data.
Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium. Lesley.DeCruz@UGent.be
Lesley
L
De Cruz
Tom
T
Vrancx
Pieter
P
Vancraeyveld
Jan
J
Ryckebusch