Rho-nucleon tensor coupling and charge-exchange resonances
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Data
2000-11-23
Autores
De Conti, C.
Galeao, A. P.
Krmpotic, F.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
The Gamow-Teller resonance in Pb-208 is discussed in the context of a self-consistent RPA, based on the relativistic mean field theory. We inquire on the possibility of substituting the phenomenological Landau-Migdal force by a microscopic nucleon-nucleon interaction, generated from the rho-nucleon tensor coupling. The effect of this coupling turns out to be very small when the short range correlations are not taken into account, but too large when these correlations are simulated by the simple extraction of the contact terms from the resulting nucleon-nucleon interaction. (C) 2000 Elsevier B.V. B.V. All rights reserved.
Descrição
Palavras-chave
relativistic mean field theory, random phase approximation, one-boson-exchange models, charge-exchange resonances
Como citar
Physics Letters B. Amsterdam: Elsevier B.V., v. 494, n. 1-2, p. 46-52, 2000.