An Isobaric Model for Kaon photoproduction

Details An Isobaric Model for Kaon photoproduction An Isobaric Model for Kaon photoproduction

1999-12-04

arxiv.org/abs/nucl-th/9912011v1

Nucl.Phys. A691 (2001) 713-749

Physics

Nuclear Physics

Nuclear Theory

48 pages, 7 figures

Scientific paper

10.1016/S0375-9474(01)00584-X

The kaon photoproduction is analyzed up to $E_\gamma^{\rm Lab}$=2.0 GeV by using an isobaric model based on effective Lagrangians and by taking a cross symmetry into account. Both {\it pseudovector} and {\it pseudoscalar} couplings for kaon-baryon-baryon (baryon spin=1/2) interactions are considered with form factors. A vector meson($K^*(890)$), an axial vector meson($K_1(1270)$), nucleon resonances($J\le5/2$), and hyperon resonances($J\le3/2$) are treated as participating particles. By determining unknown coupling constants through a systematic fitting of the differential cross section, the total cross section, the single polarization observable, and the radiative kaon capture branching ratio to their experimental data, we find out a simple model which reproduces all the experimental data well.

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