Regge-model predictions for K Sigma photoproduction from the nucleon - Nuclear TheoryReportar como inadecuado




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Abstract: We present Regge-model predictions for the pgamma,K+Sigma0 andngamma,K+Sigma- differential cross sections and photon-beam asymmetries inthe resonance region. The reaction amplitude encompasses the exchange ofK+494 and K*+892 Regge-trajectories, introducing a mere three freeparameters. These are fitted to the available pgamma,K+Sigma0 data beyond theresonance region. The ngamma,K+Sigma- amplitude is obtained from thepgamma,K+Sigma0 one through SU2 isospin symmetry considerations.



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

Fuente: https://arxiv.org/







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