dorsal/arxiv
View SchemaThree-Nucleon Force and the $\Delta$-Mechanism for Pion Production and Pion Absorption
| Authors | M. T. Peña, P. U. Sauer, A. Stadler, G. Kortemeyer |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9305014 |
| URL | https://arxiv.org/abs/nucl-th/9305014 |
| DOI | 10.1103/PhysRevC.48.2208 |
| Journal | Phys.Rev.C48:2208-2221,1993 |
Abstract
The description of the three-nucleon system in terms of nucleon and $\Delta$ degrees of freedom is extended to allow for explicit pion production (absorption) from single dynamic $\Delta$ de-excitation (excitation) processes. This mechanism yields an energy dependent effective three-body hamiltonean. The Faddeev equations for the trinucleon bound state are solved with a force model that has already been tested in the two-nucleon system above pion-production threshold. The binding energy and other bound state properties are calculated. The contribution to the effective three-nucleon force arising from the pionic degrees of freedom is evaluated. The validity of previous coupled-channel calculations with explicit but stable $\Delta$ isobar components in the wavefunction is studied.
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"abstract": "The description of the three-nucleon system in terms of nucleon and $\\Delta$\ndegrees of freedom is extended to allow for explicit pion production\n(absorption) from single dynamic $\\Delta$ de-excitation (excitation) processes.\nThis mechanism yields an energy dependent effective three-body hamiltonean. The\nFaddeev equations for the trinucleon bound state are solved with a force model\nthat has already been tested in the two-nucleon system above pion-production\nthreshold. The binding energy and other bound state properties are calculated.\nThe contribution to the effective three-nucleon force arising from the pionic\ndegrees of freedom is evaluated. The validity of previous coupled-channel\ncalculations with explicit but stable $\\Delta$ isobar components in the\nwavefunction is studied.",
"arxiv_id": "nucl-th/9305014",
"authors": [
"M. T. Pe\u00f1a",
"P. U. Sauer",
"A. Stadler",
"G. Kortemeyer"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.48.2208",
"journal_ref": "Phys.Rev.C48:2208-2221,1993",
"title": "Three-Nucleon Force and the $\\Delta$-Mechanism for Pion Production and Pion Absorption",
"url": "https://arxiv.org/abs/nucl-th/9305014"
},
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