dorsal/arxiv
View SchemaStructure and decay properties of spin-dipole giant resonances within a semimicroscopical approach
| Authors | E. A. Moukhai, V. A. Rodin, M. H. Urin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9804076 |
| URL | https://arxiv.org/abs/nucl-th/9804076 |
| DOI | 10.1016/S0370-2693(98)01578-0 |
| Journal | Phys.Lett. B447 (1999) 8-14 |
Abstract
A semimicroscopical approach is applied to calculate: (i) strength functions for the charge-exchange spin-dipole giant resonances in the 208Pb parent nucleus; (ii) partial and total branching ratios for the direct proton decay of the resonance in 208Bi. The approach is based on continuum-RPA calculations of corresponding reaction-amplitudes and phenomenological description of the doorway-state coupling to many-quasiparticle configurations. The only adjustable parameter needed for the description is found by comparison of the calculated and experimental total widths of the resonance. Other model parameters used in calculations are taken from independent data. The calculated total branching ratio is found to be in reasonable agreement with the experimental value.
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"abstract": "A semimicroscopical approach is applied to calculate: (i) strength functions\nfor the charge-exchange spin-dipole giant resonances in the 208Pb parent\nnucleus; (ii) partial and total branching ratios for the direct proton decay of\nthe resonance in 208Bi. The approach is based on continuum-RPA calculations of\ncorresponding reaction-amplitudes and phenomenological description of the\ndoorway-state coupling to many-quasiparticle configurations. The only\nadjustable parameter needed for the description is found by comparison of the\ncalculated and experimental total widths of the resonance. Other model\nparameters used in calculations are taken from independent data. The calculated\ntotal branching ratio is found to be in reasonable agreement with the\nexperimental value.",
"arxiv_id": "nucl-th/9804076",
"authors": [
"E. A. Moukhai",
"V. A. Rodin",
"M. H. Urin"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(98)01578-0",
"journal_ref": "Phys.Lett. B447 (1999) 8-14",
"title": "Structure and decay properties of spin-dipole giant resonances within a semimicroscopical approach",
"url": "https://arxiv.org/abs/nucl-th/9804076"
},
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