Article ID Journal Published Year Pages File Type
1851351 Physics Letters B 2008 4 Pages PDF
Abstract
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-Zumino-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.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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