The role of hyperon resonances in p(gamma,K+)Lambda processes
Nuclear Theory
2009-11-07 v1
Abstract
We discuss the role of hyperon resonances in the u-channel when modeling p (gamma,K+)Lambda processes in an effective Lagrangian approach. Without the introduction of hyperon resonances, one is forced to use soft hadronic form factors with a cutoff mass which is at best two times the kaon mass. After inclusion of the hyperon resonances in the u-channel, we obtain a fair description of the data with a cutoff mass of the order of 1.8 GeV.
Cite
@article{arxiv.nucl-th/0105008,
title = {The role of hyperon resonances in p(gamma,K+)Lambda processes},
author = {S. Janssen and J. Ryckebusch and W. Van Nespen and D. Debruyne and T. Van Cauteren},
journal= {arXiv preprint arXiv:nucl-th/0105008},
year = {2009}
}
Comments
7 pages, 7 eps figures, submitted to Eur. Phys. J. A