Field theoretical description of exchange terms in nuclear systems

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Abstract

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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Serra, M., Otsuka, T., Akaishi, Y., Ring, P., & Hirose, S. (2003). Field theoretical description of exchange terms in nuclear systems. Nuclear Physics A, 722, C502–C506. https://doi.org/10.1016/S0375-9474(03)01416-7

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