Are the level densities for r- and rp -process nuclei different from nearby nuclei in the valley of stability?

S. I. Al-Quraishi*, S. M. Grimes, T. N. Massey, D. A. Resler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Nuclei reached in r- and rp -process reactions in nuclear astrophysics are considerably more neutron or proton rich than most nuclei for which level densities have been studied. Two models which predict somewhat different behavior for nuclei away from the valley of stability are examined. It is found that one of the two provides a better description of the available data. A term which lowered the level density parameter as isospin increased at fixed A did not produce as much improvement as one which reduced the level density parameter based on the distance from the valley of stability. As a by-product of this study, a formulation of level density systematics near the valley of stability is also tested.

Original languageEnglish
Article number065803
Pages (from-to)658031-658036
Number of pages6
JournalPhysical Review C
Volume63
Issue number6
DOIs
StatePublished - Jun 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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