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dc.contributor.authorRauscher, T.
dc.contributor.authorThielemann, Friedrich-Karl
dc.contributor.authorKratz, K.L.
dc.date.accessioned2013-07-02T13:47:03Z
dc.date.available2013-07-02T13:47:03Z
dc.date.issued1997-09
dc.identifier.citationRauscher , T , Thielemann , F-K & Kratz , K L 1997 , ' Nuclear level density and the determination of thermonuclear rates for astrophysics ' , Physical Review C , vol. 56 , no. 3 , pp. 1613-1625 .
dc.identifier.issn2469-9985
dc.identifier.otherPURE: 1635791
dc.identifier.otherPURE UUID: e3c6de6e-bcec-4dd9-b0d7-ea58e3b4259c
dc.identifier.otherWOS: A1997XW37900048
dc.identifier.otherScopus: 0031505056
dc.identifier.urihttp://hdl.handle.net/2299/11033
dc.description.abstractThe prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. In recent calculations the nuclear level density-as an important ingredient to the statistical model (Hauser-Feshbach)-has shown the highest uncertainties. We present a global parametrization of nuclear level densities within the back-shifted Fermi-gas formalism. Employment of an energy-dependent level density parameter a, based on microscopic corrections from a recent finite range droplet model mass formula, and a backshift delta, based on pairing and shell corrections, leads to a highly improved fit of level densities at the neutron-separation energy in the mass range 20 less than or equal to A less than or equal to 245. The importance of using proper microscopic corrections from mass formulas is emphasized. The resulting level description is well suited for astrophysical applications. The level density can also provide clues to the applicability of the statistical model which is only correct for a high density of excited states. Using the above description, one can derive a ''map'' for the applicability of the model to reactions of stable and unstable nuclei with neutral and charged particles.en
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofPhysical Review C
dc.subjectSHELL
dc.subjectMODEL
dc.subjectR-PROCESS
dc.subjectFORMULA
dc.subjectMASSES
dc.titleNuclear level density and the determination of thermonuclear rates for astrophysicsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionSMUR
rioxxterms.typeJournal Article/Review


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