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Title: Level density inputs in nuclear reaction codes and the role of the spin cutoff parameter

Here, the proton spectrum from the 57Fe(α,p) reaction has been measured and analyzed with the Hauser-Feshbach model of nuclear reactions. Different input level density models have been tested. It was found that the best description is achieved with either Fermi-gas or constant temperature model functions obtained by fitting them to neutron resonance spacing and to discrete levels and using the spin cutoff parameter with much weaker excitation energy dependence than it is predicted by the Fermi-gas model.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [1] ;  [2]
  1. Ohio Univ., Athens, OH (United States)
  2. Univ. of Oslo, Oslo (Norway)
Publication Date:
OSTI Identifier:
1253953
Grant/Contract Number:
FG02-88ER40387
Type:
Accepted Manuscript
Journal Name:
Nuclear Data Sheets
Additional Journal Information:
Journal Volume: 119; Journal Issue: C; Journal ID: ISSN 0090-3752
Publisher:
Elsevier
Research Org:
Ohio Univ., Athens, OH (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
Ohio Univ., Athens, OH (United States)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS level densities; parameters