Rho-Nucleon Tensor Coupling and Charge-Exchange Resonances

Details Rho-Nucleon Tensor Coupling and Charge-Exchange Resonances Rho-Nucleon Tensor Coupling and Charge-Exchange Resonances

2000-03-09

arxiv.org/abs/nucl-th/0003017v3

Phys.Lett. B494 (2000) 46-52

Physics

Nuclear Physics

Nuclear Theory

15 pages, LaTeX, 2 figures; extended text, improved figures, new references added, the version appearing in Phys.Lett.B

Scientific paper

10.1016/S0370-2693(00)01192-8

The Gamow-Teller resonances are 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.

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