Kaon production via {gamma}{ital N}{r_arrow}{ital K}{Sigma} in the chiral quark model
Journal Article
·
· Physical Review, C
- Department of Physics, Peking University, Beijing 100871, People`s Republic of (China)
In this paper, we present a calculation of the four isospin channels of the kaon photoproduction {gamma}{ital N}{r_arrow}{ital K}{Sigma} in the framework of the chiral quark model. The relative strength and phases in each isospin channel are determined by the quark model wave function with SU(6){circle_times}O(3) symmetry. The duality hypothesis is imposed to limit the number of the {ital t} channel exchanges. The only free parameter, the coupling constant {ital g}{sub {ital K}{Sigma}{ital N}}, is fitted to the total cross section data in {gamma}{ital p}{r_arrow}{ital K}{sup +}{Sigma}{sup 0} channel. We found a remarkable agreement with the data available in the other isospin channels, and it represents a dramatic improvement over the similar calculation in the traditional isobaric model. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 389480
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 54; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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