Relativistic RPA for isobaric analogue and Gamow-Teller resonances in closed shell nuclei

被引：26

作者：

De Conti, C

Galeao, AP

Krmpotic, F

机构：

[1] Univ Estadual Paulista, Inst Fis Teorica, BR-01405900 Sao Paulo, Brazil

[2] Natl Univ La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina

来源：

PHYSICS LETTERS B | 1998年 / 444卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(98)01373-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of Ca-48, Zr-90 and Pb-208. We use the parameter set NL1 for the sigma, omega and rho mesons, and experimental values for the pion and nucleon. An extra parameter, related to the intensity of the contact term in the pion-exchange interaction, is crucial to reproduce the latter resonances. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

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页码：14 / 20

页数：7

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