Temperature dependence of spreading width of giant dipole resonance

被引：8

作者：

Storozhenko, AN ^{[1
]}

Vdovin, AI

Ventura, A

Blokhin, AI

机构：

[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[2] Natl Agcy New Technol Energy & Environm, I-40129 Bologna, Italy

[3] Natl Inst Nucl Phys, Bologna Sect, Bologna, Italy

[4] Russian Fed Sci Ctr Phys Engn Inst, Obninsk 249020, Kaluga Region, Russia

来源：

PHYSICAL REVIEW C | 2004年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.69.064320

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The quasiparticle-phonon nuclear model extended to finite temperature within the framework of thermofield dynamics is applied to calculate a temperature dependence of the spreading width Gamma(down arrow) of a giant dipole resonance. Numerical calculations are made for Sn-120 and Pb-208 nuclei. It is found that Gamma(down arrow) increases with T. The reason for this effect is discussed as well as a relation of the present approach to other ones existing in the literature.

引用

页码：064320 / 1

页数：11

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