dorsal/arxiv
View SchemaPhi meson production cross sections in pion-baryon and baryon-baryon interactions
| Authors | W. S. Chung, G. Q. Li, C. M. Ko |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9611024 |
| URL | https://arxiv.org/abs/nucl-th/9611024 |
| DOI | 10.1016/S0370-2693(97)00374-2 |
Abstract
Phi meson production in pion-baryon and baryon-baryon interactions near the production threshold is studied in a boson-exchange model. Parameters in this model are either taken from the Bonn model for the nucleon-nucleon potential or determined from the measured phi meson decay width and the experimental data for the reactions $\pi^-p\arr \phi n$ and $pp\arr pp\phi$. The isospin-averaged cross sections for the reactions $\pi N\arr \phi N$, $\pi \Delta \arr \phi N$, $NN\arr NN\phi$, which are needed in transport models to study phi meson production in heavy-ion collisions at subthreshold energies, have been evaluated. For the reactions $N\Delta\arr NN\phi$ and $\Delta\Delta\arr NN\phi$, which become singular when the exchanged pion is on-shell, the Peierls method is used to calculate their cross sections. We find that the cross section for the reaction $\pi N\arr\phi N$ is much larger than the other cross sections.
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"abstract": "Phi meson production in pion-baryon and baryon-baryon interactions near the\nproduction threshold is studied in a boson-exchange model. Parameters in this\nmodel are either taken from the Bonn model for the nucleon-nucleon potential or\ndetermined from the measured phi meson decay width and the experimental data\nfor the reactions $\\pi^-p\\arr \\phi n$ and $pp\\arr pp\\phi$. The isospin-averaged\ncross sections for the reactions $\\pi N\\arr \\phi N$, $\\pi \\Delta \\arr \\phi N$,\n$NN\\arr NN\\phi$, which are needed in transport models to study phi meson\nproduction in heavy-ion collisions at subthreshold energies, have been\nevaluated. For the reactions $N\\Delta\\arr NN\\phi$ and $\\Delta\\Delta\\arr\nNN\\phi$, which become singular when the exchanged pion is on-shell, the Peierls\nmethod is used to calculate their cross sections. We find that the cross\nsection for the reaction $\\pi N\\arr\\phi N$ is much larger than the other cross\nsections.",
"arxiv_id": "nucl-th/9611024",
"authors": [
"W. S. Chung",
"G. Q. Li",
"C. M. Ko"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(97)00374-2",
"title": "Phi meson production cross sections in pion-baryon and baryon-baryon interactions",
"url": "https://arxiv.org/abs/nucl-th/9611024"
},
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