Energy averages and fluctuations in the decay out of superdeformed bands

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSargeant, Adam James-
Autor(es): dc.creatorHussein, Mahir Saleh-
Autor(es): dc.creatorPato, Mauricio Porto-
Autor(es): dc.creatorUeda, Masahito-
Data de aceite: dc.date.accessioned2019-11-06T13:25:05Z-
Data de disponibilização: dc.date.available2019-11-06T13:25:05Z-
Data de envio: dc.date.issued2012-09-26-
Data de envio: dc.date.issued2012-09-26-
Data de envio: dc.date.issued2002-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/1444-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/554956-
Descrição: dc.descriptionWe 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.-
Idioma: dc.languageen-
Direitos: dc.rightsO 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.-
Título: dc.titleEnergy averages and fluctuations in the decay out of superdeformed bands-
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