dorsal/arxiv
View SchemaCompetition of electron capture and beta-decay rates in supernova collapse
| Authors | G. Martinez-Pinedo, K. Langanke, D. J. Dean |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9811095 |
| URL | https://arxiv.org/abs/nucl-th/9811095 |
| DOI | 10.1086/313297 |
| Journal | Astrophys.J.Suppl. 126 (2000) 493-500 |
Abstract
We calculate supernova electron capture and beta decay rates for various pf-shell nuclei using large-scale shell model techniques. We show that the centroid of the Gamow-Teller strength distribution has been systematically misplaced in previous rate estimates. Our total electron capture rates are significantly smaller than currently adopted in core collapse calculations, while the total beta decay rates change less. Our calculation shows that for electron-to-baryon ratios Ye=0.42-0.46 beta decay rates are larger than the competing electron capture rates.
{
"annotation_id": "bca6652f-fab3-4dec-9d3c-a2aca4344cd6",
"date_created": "2026-03-02T18:00:25.668000Z",
"date_modified": "2026-03-02T18:00:25.668000Z",
"file_hash": "2c4a0cdbfb2c246064cda0f1d2bed255a7445c23fd182273ccbf1b7cdbb93d90",
"private": false,
"record": {
"abstract": "We calculate supernova electron capture and beta decay rates for various\npf-shell nuclei using large-scale shell model techniques. We show that the\ncentroid of the Gamow-Teller strength distribution has been systematically\nmisplaced in previous rate estimates. Our total electron capture rates are\nsignificantly smaller than currently adopted in core collapse calculations,\nwhile the total beta decay rates change less. Our calculation shows that for\nelectron-to-baryon ratios Ye=0.42-0.46 beta decay rates are larger than the\ncompeting electron capture rates.",
"arxiv_id": "nucl-th/9811095",
"authors": [
"G. Martinez-Pinedo",
"K. Langanke",
"D. J. Dean"
],
"categories": [
"nucl-th",
"astro-ph"
],
"doi": "10.1086/313297",
"journal_ref": "Astrophys.J.Suppl. 126 (2000) 493-500",
"title": "Competition of electron capture and beta-decay rates in supernova collapse",
"url": "https://arxiv.org/abs/nucl-th/9811095"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "7f2ee57c-4fbf-41e4-9edc-9aa83d862b57",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}