Field theoretical description of exchange terms in nuclear systems

  • Serra M
  • Otsuka T
  • Akaishi Y
 et al. 
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In this work we suggest a possible origin of the σ-meson in nuclear systems in terms of the bare Nucleon-Nucleon interaction. Starting from an effective interaction determined by a G-matrix calculation, we show that the intermediate range of this effective interaction can be described to a good approximation by an exchange of scalar mesons, whose fitted masses and coupling constants are in good agreement with the values of standard relativistic mean field parametrization.

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