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

Authors
De Conti, C Galeao, AP Krmpotic, F
Citation
C. De Conti et al., Relativistic RPA for isobaric analogue and Gamow-Teller resonances in closed shell nuclei, PHYS LETT B, 444(1-2), 1998, pp. 14-20
Citations number
39
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
444
Issue
1-2
Year of publication
1998
Pages
14 - 20
Database
ISI
SICI code
0370-2693(199812)444:1-2<14:RRFIAA>2.0.ZU;2-8
Abstract
We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theor y results for the ground states of Ca-48, Zr-90 and Pb-208. We use the para meter 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 t he contact term in the pion-exchange interaction, is crucial to reproduce t he latter resonances. (C) 1998 Published by Elsevier Science B.V. All right s reserved.