Energy averages and fluctuations in the decay out of superdeformed bands.

dc.contributor.authorSargeant, Adam James
dc.contributor.authorHussein, Mahir Saleh
dc.contributor.authorPato, Mauricio Porto
dc.contributor.authorUeda, Masahito
dc.date.accessioned2012-09-26T17:23:42Z
dc.date.available2012-09-26T17:23:42Z
dc.date.issued2002
dc.description.abstractWe derive analytic formulas for the energy average including the energy average of the fluctuation contribution! and variance of the intraband decay intensity of a superdeformed band. Our results may be expressed in terms of three dimensionless variables: G#/GS , GN /d, and GN /(GS1G#). Here G# is the spreading width for the mixing of a superdeformed ~SD! state u0& with the normally deformed ~ND! states uQ& whose spin is the same as u0&’s. The uQ& have mean lever spacing d and mean electromagnetic decay width GN whilst u0& has electromagnetic decay width GS. The average decay intensity may be expressed solely in terms of the variables G#/GS and GN /d or, analogously to statistical nuclear reaction theory, in terms of the transmission coefficients T0(E) and TN describing transmission from the uQ& to the SD band via u0& and to lower ND states. The variance of the decay intensity, in analogy with Ericson’s theory of cross section fluctuations, depends on an additional variable, the correlation length GN /(GS1G#)5(d/2p)TN /(GS1G#). This suggests that analysis of an experimentally determined variance could yield the mean level spacing d as does analysis of the cross section autocorrelation function in compound nucleus reactions. We compare our results with those of Gu and Weidenmu¨ller.pt_BR
dc.identifier.citationSARGEANT, A. J. et al. Energy averages and fluctuations in the decay out of superdeformed bands. Physical Review. C, Nuclear Physics, v. 66, n. 6, p. 064301, 2002. Disponível em: <http://prc.aps.org/pdf/PRC/v66/i6/e064301>. Acesso em: 26 set. 2012.pt_BR
dc.identifier.issn05562813
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/1444
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Physical Review. C, Nuclear Physics permite o depósito da versão PDF do editor em Repositório Institucional. Fonte: Sherpa/Romeo <http://www.sherpa.ac.uk/romeo/search.php?issn=0556-2813>. Acesso em: 26 fev. 2014.
dc.titleEnergy averages and fluctuations in the decay out of superdeformed bands.pt_BR
dc.typeArtigo publicado em periodicopt_BR

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