dorsal/arxiv
View SchemaThe Dynamical Structure of the Delta-Resonance and its Effect on Two- and Three-Nucleon Systems
| Authors | G. Kortemeyer, M. T. Pena, P. U. Sauer, A. Stadler |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9603034 |
| URL | https://arxiv.org/abs/nucl-th/9603034 |
Abstract
The pion-nucleon interaction in the P33 partial wave is assumed to proceed simultaneously through the excitation of the Delta-isobar and through a phenomenologically introduced non-resonant background potential. The introduction of the background potential allows a more realistic parameterization of the pion-nucleon-Delta vertex compared with the previously used one without background. It also modifies the propagation of the Delta-isobar in the nuclear medium and gives rise to novel effective nucleon-Delta interactions. Their consequences on predictions for observables in the two-nucleon system at intermediate energies and in the three-nucleon bound state are studied.
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"abstract": "The pion-nucleon interaction in the P33 partial wave is assumed to proceed\nsimultaneously through the excitation of the Delta-isobar and through a\nphenomenologically introduced non-resonant background potential. The\nintroduction of the background potential allows a more realistic\nparameterization of the pion-nucleon-Delta vertex compared with the previously\nused one without background. It also modifies the propagation of the\nDelta-isobar in the nuclear medium and gives rise to novel effective\nnucleon-Delta interactions. Their consequences on predictions for observables\nin the two-nucleon system at intermediate energies and in the three-nucleon\nbound state are studied.",
"arxiv_id": "nucl-th/9603034",
"authors": [
"G. Kortemeyer",
"M. T. Pena",
"P. U. Sauer",
"A. Stadler"
],
"categories": [
"nucl-th"
],
"title": "The Dynamical Structure of the Delta-Resonance and its Effect on Two- and Three-Nucleon Systems",
"url": "https://arxiv.org/abs/nucl-th/9603034"
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