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Author Lauritzen, B. ♦ Negele, J. W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NUCLEAR PHYSICS AND RADIATION PHYSICS ♦ NUCLEAR DEFORMATION ♦ RESPONSE FUNCTIONS ♦ ADIABATIC APPROXIMATION ♦ HAMILTONIANS ♦ MANY-BODY PROBLEM ♦ PROPAGATOR ♦ SINGLE-PARTICLE MODEL ♦ STRENGTH FUNCTIONS ♦ TEMPERATURE DEPENDENCE ♦ TWO-BODY PROBLEM ♦ DEFORMATION ♦ FUNCTIONS ♦ MATHEMATICAL MODELS ♦ MATHEMATICAL OPERATORS ♦ PARTICLE MODELS ♦ QUANTUM OPERATORS ♦ Nuclear Theory- Nuclear Structure, Moments, Spin, & Models
Abstract The static-path approximation is applied to the real-time response function of a nucleus at finite temperature. This approximation is shown to become accurate in the high-temperature limit for an appropriately energy-smoothed strength function. An additional local approximation to overlap integrals yields the familiar adiabatic approximation. These two approximations are compared with exact results for the Lipkin model. For a sufficiently large ratio of two-body interaction to single-particle energy, the static-path approximation accurately describes the exact strength function. For parameters characteristic of nuclear shape transitions, the static-path approximation is not reliable and the adiabatic approximation is qualitatively in error.
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1991-08-01
Publisher Place United States
Journal Physical Review, C
Volume Number 44
Issue Number 2


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