Collisional effects in the finite temperature dipole response of 120Sn and 208Pb

被引：9
|
作者：
Lacroix, D
Chomaz, P
Ayik, S
机构：
[1] Inst Sci Mat & Rayonnement, LPC, F-14050 Caen, France
[2] GANIL, F-14076 Caen 5, France
[3] Tennessee Technol Univ, Cookeville, TN 38505 USA
来源：
PHYSICS LETTERS B | 2000年 / 489卷 / 1-2期
关键词：
extended TDHF; linear response; one-body transport theory;
D O I：
10.1016/S0370-2693(00)00926-6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate for the first time the behavior of the GDR in Sn-120 and Pb-208 at zero and finite temperatures in the linearized version of the extended TDHF theory. It is shown that collisions between nucleons induce an increase of the GDR width together with a decrease of the collective energy with an increasing temperature. While in Sn-120, the GDR response has a relatively strong temperature dependence, a weaker temperature dependence is found in Pb-208. Influence of collisional coupling and of the range of the effective interaction on the presented results are discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：137 / 142
页数：6
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