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Title: The role of seniority-zero states in nuclear level densities

At low excitation energies seniority-zero states dominate the level density of K=0 bands in deformed even–even nuclei, while they play no role at higher excitation energies. We describe the level densities in a Fermi-gas model as well as in a combinatorial level-density model and compare to detailed experimental data for some rare-earth nuclei.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Lund Univ. (Sweden)
  2. Univ. of Copenhagen (Denmark). The Niels Bohr Inst.
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
1215533
Report Number(s):
LA-UR--14-28706
Journal ID: ISSN 0375-9474; PII: S0375947415001281
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 941; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS level-density; seniority-zero states; spin-distribution; zero-plus states