dorsal/arxiv
View SchemaThe nuclear moment of inertia and spin distribution of nuclear levels
| Authors | Y. Alhassid, G. F. Bertsch, L. Fang, S. Liu |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0508027 |
| URL | https://arxiv.org/abs/nucl-th/0508027 |
| DOI | 10.1103/PhysRevC.72.064326 |
| Journal | Phys.Rev. C72 (2005) 064326 |
Abstract
We introduce a simple model to calculate the nuclear moment of inertia at finite temperature. This moment of inertia describes the spin distribution of nuclear levels in the framework of the spin-cutoff model. Our model is based on a deformed single-particle Hamiltonian with pairing interaction and takes into account fluctuations in the pairing gap. We derive a formula for the moment of inertia at finite temperature that generalizes the Belyaev formula for zero temperature. We show that a number-parity projection explains the strong odd-even effects observed in shell model Monte Carlo studies of the nuclear moment of inertia in the iron region.
{
"annotation_id": "5562e82c-4dd3-46f6-9c35-89c06c125cf5",
"date_created": "2026-03-02T18:00:04.869000Z",
"date_modified": "2026-03-02T18:00:04.869000Z",
"file_hash": "d2ef086b17b2a18c34a3e5af848e8f2bf841bd0425a6e197b846ac0151ec0328",
"private": false,
"record": {
"abstract": "We introduce a simple model to calculate the nuclear moment of inertia at\nfinite temperature. This moment of inertia describes the spin distribution of\nnuclear levels in the framework of the spin-cutoff model. Our model is based on\na deformed single-particle Hamiltonian with pairing interaction and takes into\naccount fluctuations in the pairing gap. We derive a formula for the moment of\ninertia at finite temperature that generalizes the Belyaev formula for zero\ntemperature. We show that a number-parity projection explains the strong\nodd-even effects observed in shell model Monte Carlo studies of the nuclear\nmoment of inertia in the iron region.",
"arxiv_id": "nucl-th/0508027",
"authors": [
"Y. Alhassid",
"G. F. Bertsch",
"L. Fang",
"S. Liu"
],
"categories": [
"nucl-th",
"cond-mat.mes-hall"
],
"doi": "10.1103/PhysRevC.72.064326",
"journal_ref": "Phys.Rev. C72 (2005) 064326",
"title": "The nuclear moment of inertia and spin distribution of nuclear levels",
"url": "https://arxiv.org/abs/nucl-th/0508027"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "ca6024ea-6e06-4b91-9aed-c0c164614832",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}