Response of asymmetric nuclear matter to isospin-flip probes

被引：14

作者：

Hernández, ES ^{[1
]}

Navarro, J

Polls, A

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

[2] Univ Valencia, CSIC, Ctr Mixt, IFIC,Fac Fis, E-46100 Burjassot, Spain

[3] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

NUCLEAR PHYSICS A | 1999年 / 658卷 / 04期

关键词：

D O I：

10.1016/S0375-9474(99)00363-2

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：

We investigate the RPA response of asymmetric nuclear matter to external fields which induce charge exchange between nucleons, both at zero and finite temperature. Closed expressions are obtained for the RPA response in each spin channel when the nucleon-nucleon interaction is of the Skyrme type. Exchange terms are fully taken into account. We consider the transferred momentum, asymmetry and temperature as the relevant parameters of our study. Special emphasis is given to the role of neutron excess in relation to the collective states at low momentum. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：327 / 342

页数：16

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