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Collisional damping of giant dipole resonance in Sn-120 and Pb-208

Gokalp, A
Yılmaz, Osman
Yildirim, S
Ayik, S
We investigate the collisional damping of giant dipole resonance at finite temperature in the basis of a non-Markovian transport approach. We perform our calculations in Thomas-Fermi approximation by employing the microscopic in-medium cross-sections of Li and Machleidt and the phenomenological Gogny force. The results account for about 30% of the observed widths in Sn-120 and Pb-208 at finite temperatures.