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

Gokalp A., Yilmaz O., Yildirim S., Ayik S.

ACTA PHYSICA POLONICA B, vol.32, no.3, pp.835-839, 2001 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 3
  • Publication Date: 2001
  • Journal Name: ACTA PHYSICA POLONICA B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.835-839
  • Middle East Technical University Affiliated: Yes

Abstract

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.