Kinetic approach to the damping of giant quadrupole resonances
- 1 September 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 42 (3) , 966-969
- https://doi.org/10.1103/physrevc.42.966
Abstract
The effect of one- and two-body dissipation on the damping of giant quadrupole resonances is studied in a semiclassic approach solving a Vlasov equation with a collisional relaxation time. The latter is microscopically evaluated from the equilibration of a distorted momentum distribution in a kinetic approach. Important effects from energy and angle dependent nucleon-nucleon (NN) cross sections and from the time variation of Pauli blocking are stressed. Once these points are suitably treated, a good agreement with the experimental systematics is obtained from the use of a free NN cross section.Keywords
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