Magnetic interaction induced by the anomaly in kaon-photoproductions

Details Magnetic interaction induced by the anomaly in kaon-photoproductions Magnetic interaction induced by the anomaly in kaon-photoproductions

2007-10-30

arxiv.org/abs/0710.5581v1

Phys.Lett.B665:178-181,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 3 figures

Scientific paper

10.1016/j.physletb.2008.06.020

We study the role of magnetic interaction in the photoproduction of the kaon and hyperon. We find that the inclusion of a higher order diagram induced by the Wess-Zumio-Witten term has a significant contribution to the magnetic amplitude, which is compatible to the observed photon asymmetry in the forward angle region. This enables us to use the K^* coupling constants which have been determined in a microscopic way rather than the phenomenological ones which differ largely from the microscopic ones.

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