dorsal/arxiv
View SchemaMicroscopic origins of effective charges in the shell model
| Authors | P. Navratil, M. Thoresen, B. R. Barrett |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9612015 |
| URL | https://arxiv.org/abs/nucl-th/9612015 |
| DOI | 10.1103/PhysRevC.55.573 |
| Journal | Phys.Rev.C55:573-576,1997 |
Abstract
We use a large-scale 6 hbar Omega calculation for Li6 with microscopically derived two-body interaction to construct the 0 hbar Omega 0p-shell effective hamiltonian, electric quadrupole, and magnetic dipole operators. While the E2 and M1 6 hbar Omega operators are one-body operators with free nucleon charges, the effective operators are two-body operators with substantially different renormalization for the isoscalar and isovector matrix elements, especially for the E2 operator. We show that these operators can be very well approximated by one-body operators provided that effective proton and neutron charges are used. The obtained effective charges are compatible with those used in phenomenological shell-model studies. The two-body part of the effective operators is estimated.
{
"annotation_id": "918a8599-d6c8-484c-8b42-bba99e46fd90",
"date_created": "2026-03-02T18:00:18.831000Z",
"date_modified": "2026-03-02T18:00:18.831000Z",
"file_hash": "97fbfbe835689ad10f82a113628c9daa3b9d011ac9d4cc8496891323afa5f45a",
"private": false,
"record": {
"abstract": "We use a large-scale 6 hbar Omega calculation for Li6 with microscopically\nderived two-body interaction to construct the 0 hbar Omega 0p-shell effective\nhamiltonian, electric quadrupole, and magnetic dipole operators. While the E2\nand M1 6 hbar Omega operators are one-body operators with free nucleon charges,\nthe effective operators are two-body operators with substantially different\nrenormalization for the isoscalar and isovector matrix elements, especially for\nthe E2 operator. We show that these operators can be very well approximated by\none-body operators provided that effective proton and neutron charges are used.\nThe obtained effective charges are compatible with those used in\nphenomenological shell-model studies. The two-body part of the effective\noperators is estimated.",
"arxiv_id": "nucl-th/9612015",
"authors": [
"P. Navratil",
"M. Thoresen",
"B. R. Barrett"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.55.573",
"journal_ref": "Phys.Rev.C55:573-576,1997",
"title": "Microscopic origins of effective charges in the shell model",
"url": "https://arxiv.org/abs/nucl-th/9612015"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "a02f305a-10a8-4675-a8d0-448cbd0b70b7",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}