An investigation of interplay between dissipation mechanisms in heated Fermi systems by means of radiative strength functions
A simple analytical expression for the γ-decay strength function is derived with microcanonical ensemble for initial excited states. The approach leads to both a non-zero limit of the strength function for vanishing gamma-ray energy and a partial breakdown of Brink hypothesis. It is shown that the l...
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| Published in: | Nuclear physics. A Vol. 649; no. 1; pp. 209 - 213 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier B.V
29-03-1999
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| Online Access: | Get full text |
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| Summary: | A simple analytical expression for the γ-decay strength function is derived with microcanonical ensemble for initial excited states. The approach leads to both a non-zero limit of the strength function for vanishing gamma-ray energy and a partial breakdown of Brink hypothesis. It is shown that the low energy behaviour of the γ - decay strength functions is governed by the energy behavior of the damping width. It may provides a new tool for study of the interplay between different relaxation mechanisms of the collective excitations. |
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| ISSN: | 0375-9474 |
| DOI: | 10.1016/S0375-9474(99)00063-9 |