Effective Widths and Effective Number of Phonons of Multiphonon Giant Resonances

Details Effective Widths and Effective Number of Phonons of Multiphonon Giant Resonances Effective Widths and Effective Number of Phonons of Multiphonon Giant Resonances

1999-07-27

arxiv.org/abs/nucl-th/9907107v2

Phys.Rev. C60 (1999) 064624

Physics

Nuclear Physics

Nuclear Theory

9 pages, 4 figures

Scientific paper

10.1103/PhysRevC.60.064624

We discuss the origin of the difference between the harmonic value of the
width of the multiphonon giant resonances and the smaller observed value.
Analytical expressions are derived for both the effective width and the average
cross-section. The contribution of the Brink-Axel mechanism in resolving the
discrepancy is pointed out.

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