On the Collisional Damping of Giant Dipole Resonance

Details On the Collisional Damping of Giant Dipole Resonance On the Collisional Damping of Giant Dipole Resonance

1999-09-21

arxiv.org/abs/nucl-th/9909057v1

Phys.Lett. B472 (2000) 258-266

Physics

Nuclear Physics

Nuclear Theory

Latex, 13 pages, 4 figures

Scientific paper

10.1016/S0370-2693(99)01434-3

Collisional damping widths of giant dipole excitations are calculated in Thomas-Fermi approximation by employing the microscopic in-medium cross-sections of Li and Machleidt and the phenomenological Gogny force. The results obtained in both calculations compare well, but account for about 25-35% of the observed widths in $^{120}Sn$ and $^{208}Pb$ at finite temperatures.

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