dorsal/arxiv
View SchemaLong-range correlations in finite nuclei: comparison of two self-consistent treatments
| Authors | Y. Dewulf, D. Van Neck, L. Van Daele, M. Waroquier |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9701059 |
| URL | https://arxiv.org/abs/nucl-th/9701059 |
| DOI | 10.1016/S0370-2693(97)00135-4 |
| Journal | Phys.Lett. B396 (1997) 7-14 |
Abstract
Long-range correlations, which are partially responsible for the observed fragmentation and depletion of low-lying single-particle strength, are studied in the Green's function formalism. The self-energy is expanded up to second order in the residual interaction. We compare two methods of implementing self-consistency in the solution of the Dyson equation beyond Hartree-Fock, for the case of the 16O nucleus. It is found that the energy-bin method and the BAGEL method lead to globally equivalent results. In both methods the final single-particle strength functions are characterized by exponential tails at energies far from the Fermi level.
{
"annotation_id": "c159c27a-5604-4be2-8583-f769b6fe9b18",
"date_created": "2026-03-02T18:00:18.957000Z",
"date_modified": "2026-03-02T18:00:18.957000Z",
"file_hash": "b4824a68de478f13d1861664d00caed4722cc68d623806f36acc960c926ce815",
"private": false,
"record": {
"abstract": "Long-range correlations, which are partially responsible for the observed\nfragmentation and depletion of low-lying single-particle strength, are studied\nin the Green\u0027s function formalism. The self-energy is expanded up to second\norder in the residual interaction. We compare two methods of implementing\nself-consistency in the solution of the Dyson equation beyond Hartree-Fock, for\nthe case of the 16O nucleus. It is found that the energy-bin method and the\nBAGEL method lead to globally equivalent results. In both methods the final\nsingle-particle strength functions are characterized by exponential tails at\nenergies far from the Fermi level.",
"arxiv_id": "nucl-th/9701059",
"authors": [
"Y. Dewulf",
"D. Van Neck",
"L. Van Daele",
"M. Waroquier"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(97)00135-4",
"journal_ref": "Phys.Lett. B396 (1997) 7-14",
"title": "Long-range correlations in finite nuclei: comparison of two self-consistent treatments",
"url": "https://arxiv.org/abs/nucl-th/9701059"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "13ed2fd5-3af0-4665-a9de-b6ccdecf21a2",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}