Regge-model predictions for K+Sigma photoproduction from the nucleon

Regge-model predictions for K+Sigma photoproduction from the nucleon ■

Pieter Vancraeyveld, Pieter Vancraeyveld, Pieter Vancraeyveld, Lesley De Cruz, Lesley De Cruz, Lesley De Cruz, Jan Ryckebusch, Jan Ryckebusch, Jan Ryckebusch, Tim Van Cauteren, Tim Van Cauteren, Tim Van Cauteren

Abstract ■

We present Regge-model predictions for the p(gamma,K+)Sigma0 and n(gamma,K+)Sigma- differential cross sections and photon-beam asymmetries in the resonance region. The reaction amplitude encompasses the exchange of K+(494) and K*+(892) Regge-trajectories, introducing a mere three free parameters. These are fitted to the available p(gamma,K+)Sigma0 data beyond the resonance region. The n(gamma,K+)Sigma- amplitude is obtained from the p(gamma,K+)Sigma0 one through SU(2) isospin symmetry considerations.