dorsal/arxiv
View SchemaPionic Content of Rho-N-N and Rho-N-Delta Vertex Functions
| Authors | Q. Haider, L. C. Liu |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9407023 |
| URL | https://arxiv.org/abs/nucl-th/9407023 |
| DOI | 10.1016/0370-2693(94)90346-8 |
| Journal | Phys.Lett. B335 (1994) 253-258; Erratum-ibid. B338 (1994) 521 |
Abstract
The dynamical content of rho-N-N and rho-N-Delta vertex functions is studied with a mesonic model. A set of coupled integral equations satisfied by these vertex functions were solved self-consistently. These soulutions indicate that the dominant mesonic content arises from di-pion dynamics. With the experimentally determined pion-baryon-baryon coupling constants and ranges as input, the model predicts a g_{\rho NN} that agrees with the meson-exchange-potential results. On the other hand, it predicts a smaller f_{\rho N\Delta} and much softer form factors. Implications of the findings on the use of phenomenological coupling constants in nuclear reaction studies are discussed.
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"abstract": "The dynamical content of rho-N-N and rho-N-Delta vertex functions is studied\nwith a mesonic model. A set of coupled integral equations satisfied by these\nvertex functions were solved self-consistently. These soulutions indicate that\nthe dominant mesonic content arises from di-pion dynamics. With the\nexperimentally determined pion-baryon-baryon coupling constants and ranges as\ninput, the model predicts a g_{\\rho NN} that agrees with the\nmeson-exchange-potential results. On the other hand, it predicts a smaller\nf_{\\rho N\\Delta} and much softer form factors. Implications of the findings on\nthe use of phenomenological coupling constants in nuclear reaction studies are\ndiscussed.",
"arxiv_id": "nucl-th/9407023",
"authors": [
"Q. Haider",
"L. C. Liu"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0370-2693(94)90346-8",
"journal_ref": "Phys.Lett. B335 (1994) 253-258; Erratum-ibid. B338 (1994) 521",
"title": "Pionic Content of Rho-N-N and Rho-N-Delta Vertex Functions",
"url": "https://arxiv.org/abs/nucl-th/9407023"
},
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