dorsal/arxiv
View SchemaTheoretical study of the N N --> N N pi pi reaction
| Authors | L. Alvarez-Ruso, E. Oset, E. Hernandez |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9706046 |
| URL | https://arxiv.org/abs/nucl-th/9706046 |
| DOI | 10.1016/S0375-9474(98)00126-2 |
| Journal | Nucl.Phys. A633 (1998) 519-546 |
Abstract
We have developed a model for the N N --> N N pi pi reaction and evaluated cross sections for the different charged channels. The low energy part of those channels where the pions can be in an isospin zero state is dominated by N* excitation, driven by an isoscalar source recently found experimentally, followed by the decay N* --> N (pi pi, T=0, s-wave). At higher energies, and in channels where the pions are not in T=0, Delta excitation mechanisms become relevant. A rough agreement with the experimental data is obtained in most channels. Repercussions of the present findings for the ABC effect and the p p --> p p pi0 reaction close to threshold are also suggested.
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"abstract": "We have developed a model for the N N --\u003e N N pi pi reaction and evaluated\ncross sections for the different charged channels. The low energy part of those\nchannels where the pions can be in an isospin zero state is dominated by N*\nexcitation, driven by an isoscalar source recently found experimentally,\nfollowed by the decay N* --\u003e N (pi pi, T=0, s-wave). At higher energies, and in\nchannels where the pions are not in T=0, Delta excitation mechanisms become\nrelevant. A rough agreement with the experimental data is obtained in most\nchannels. Repercussions of the present findings for the ABC effect and the p p\n--\u003e p p pi0 reaction close to threshold are also suggested.",
"arxiv_id": "nucl-th/9706046",
"authors": [
"L. Alvarez-Ruso",
"E. Oset",
"E. Hernandez"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(98)00126-2",
"journal_ref": "Nucl.Phys. A633 (1998) 519-546",
"title": "Theoretical study of the N N --\u003e N N pi pi reaction",
"url": "https://arxiv.org/abs/nucl-th/9706046"
},
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