Relativistic RPA for isobaric analogue and Gamow-Teller resonances in closed shell nuclei
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De Conti, C. [UNESP]
Galeão, A. P. [UNESP]
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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 48Ca, 90Zr and 208Pb. We use the parameter set NL1 for the σ, ω and ρ 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. © 1998 Published by Elsevier Science B.V. All rights reserved.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 444, n. 1-2, p. 14-20, 1998.