Multi-level and two-level models of the decay out of superdeformed bands

Sargeant, Adam James; Hussein, M. S.; Wilson, A. N.

doi:10.1063/1.1996871

AIP Conference Proceedings

2005

DOI: 10.1063/1.1996871

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Multi-level and two-level models of the decay out of superdeformed bands

Adam James Sargeant

M. S. Hussein²,

A. N. Wilson

Abstract: We compare a multi-level statistical model with a two-level model for the decay out of superdeformed rotational bands in atomic nuclei. We conclude that while the models depend on different dimensionless combinations of the input parameters and differ in certain limits, they essentially agree in the cases where experimental data is currently available. The implications of this conclusion are discussed.Comment: presented at the Nuclei and Mesoscopic Physics Workshop, Michigan, October 2004, to be published by… Show more

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Intensity profiles of superdeformed bands in Pb isotopes in a two-level mixing model

Wilson¹,

Szigeti²,

Davidson

et al. 2009

Phys. Rev. C

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A recently developed two-level mixing model of the decay out of superdeformed bands is applied to examine the loss of flux from the yrast superdeformed bands in 192 Pb, 194 Pb, and 196 Pb. Probability distributions for decay to states at normal deformations are calculated at each level. The sensitivity of the results to parameters describing the levels at normal deformation and their coupling to levels in the superdeformed well is explored. It is found that except for narrow ranges of the interaction strength coupling the states, the amount of intensity lost is primarily determined by the ratio of γ decay widths in the normal and superdeformed wells. It is also found that while the model can accommodate the observed fractional intensity loss profiles for decay from bands at relatively high excitation, it cannot accommodate the similarly abrupt decay from bands at lower energies if standard estimates of the properties of the states in the first minimum are employed.

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Intensity profiles of superdeformed bands in Pb isotopes in a two-level mixing model

Wilson¹,

Szigeti²,

Davidson

et al. 2009

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

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Multi-level and two-level models of the decay out of superdeformed bands

Cited by 1 publication

References 33 publications

Intensity profiles of superdeformed bands in Pb isotopes in a two-level mixing model

Intensity profiles of superdeformed bands in Pb isotopes in a two-level mixing model

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