dorsal/arxiv
View Schemasd-Shell Study with a Multi-Configuration Mixing Approach designed for Large Scale Nuclear Structure Calculations
| Authors | E. Bender, K. W. Schmid, Amand Faessler |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9508013 |
| URL | https://arxiv.org/abs/nucl-th/9508013 |
| DOI | 10.1103/PhysRevC.52.3002 |
| Journal | Phys.Rev.C52:3002-3012,1995 |
Abstract
A systematic numerical investigation of a recently developed nuclear structure approach is presented which diagonalizes the Hamiltonian in the space of the symmetry-projected Hartree-Fock-Bogoliubov (HFB) vacuum and symmetry-projected quasiparticle excitations with respect to it. The underlying HFB transformation, which is assumed to be time-reversal and axially symmetric, is determined by variation after the projection. The model allows the use of large basis systems. It has been applied to the calculation of energy spectra of several even-even, odd-odd and odd mass nuclei in the sd shell with mass numbers reaching from A=20 to 30. The Chung-Wildenthal interaction has been used. Good agreement with the exact shell model diagonalization and a considerable improvement on a previous approach, where the HFB transformation was significantly more restricted, is obtained.
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"abstract": "A systematic numerical investigation of a recently developed nuclear\nstructure approach is presented which diagonalizes the Hamiltonian in the space\nof the symmetry-projected Hartree-Fock-Bogoliubov (HFB) vacuum and\nsymmetry-projected quasiparticle excitations with respect to it. The underlying\nHFB transformation, which is assumed to be time-reversal and axially symmetric,\nis determined by variation after the projection. The model allows the use of\nlarge basis systems. It has been applied to the calculation of energy spectra\nof several even-even, odd-odd and odd mass nuclei in the sd shell with mass\nnumbers reaching from A=20 to 30. The Chung-Wildenthal interaction has been\nused. Good agreement with the exact shell model diagonalization and a\nconsiderable improvement on a previous approach, where the HFB transformation\nwas significantly more restricted, is obtained.",
"arxiv_id": "nucl-th/9508013",
"authors": [
"E. Bender",
"K. W. Schmid",
"Amand Faessler"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.52.3002",
"journal_ref": "Phys.Rev.C52:3002-3012,1995",
"title": "sd-Shell Study with a Multi-Configuration Mixing Approach designed for Large Scale Nuclear Structure Calculations",
"url": "https://arxiv.org/abs/nucl-th/9508013"
},
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