On the collisional damping of giant dipole resonance

Creative Commons License

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

PHYSICS LETTERS B, vol.472, no.3-4, pp.258-266, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 472 Issue: 3-4
  • Publication Date: 2000
  • Doi Number: 10.1016/s0370-2693(99)01434-3
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.258-266
  • Middle East Technical University Affiliated: Yes

Abstract

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 Sn-120 and (208)pb at finite temperatures. (C) 2000 Published by Elsevier Science B.V. All rights reserved.