dorsal/arxiv
View SchemaOn the energy-shell contributions of the three-particle~-~ three-hole excitations
| Authors | A. Mariano, F. Krmpotić, A. F. R. de Toledo Piza |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9401013 |
| URL | https://arxiv.org/abs/nucl-th/9401013 |
| DOI | 10.1103/PhysRevC.49.1949 |
| Journal | Phys.Rev.C49:1949-1954,1994 |
Abstract
The response functions for the extended second and third random phase approximation are compared. A second order perturbation calculation shows that the first-order amplitude for the direct $3p3h$ excitation from the ground state cancels with those that are engendered by the $1p1h$-$3p3h$ coupling. As a consequence nonvanishing $3p3h$ effects to the $1p1h$ response involve off energy shell renormalization only. On shell $3p3h$ processes are absent.
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"abstract": "The response functions for the extended second and third random phase\napproximation are compared. A second order perturbation calculation shows that\nthe first-order amplitude for the direct $3p3h$ excitation from the ground\nstate cancels with those that are engendered by the $1p1h$-$3p3h$ coupling. As\na consequence nonvanishing $3p3h$ effects to the $1p1h$ response involve off\nenergy shell renormalization only. On shell $3p3h$ processes are absent.",
"arxiv_id": "nucl-th/9401013",
"authors": [
"A. Mariano",
"F. Krmpoti\u0107",
"A. F. R. de Toledo Piza"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.49.1949",
"journal_ref": "Phys.Rev.C49:1949-1954,1994",
"title": "On the energy-shell contributions of the three-particle~-~ three-hole excitations",
"url": "https://arxiv.org/abs/nucl-th/9401013"
},
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