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An Isobaric Model for Kaon photoproduction

Bong Soo Han·Myung Ki Cheoun·K. S. Kim·Il-Tong Cheon
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Abstract

The kaon photoproduction is analyzed up to $E_γ^{\rm Lab}$=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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Bong Soo Han, Myung Ki Cheoun, K. S. Kim, Il-Tong Cheon. 1999-12-04. An Isobaric Model for Kaon photoproduction. https://doi.org/10.1016/s0375-9474(01)00584-x

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