Nuclear Saturation with in-Medium Meson Exchange Interactions

R. Rapp; R. Machleidt; J. W. Durso; G. E. Brown

doi:10.1103/PhysRevLett.82.1827

Nuclear Saturation with in-Medium Meson Exchange Interactions

核理论 2009-10-30 v1

作者: R. Rapp , R. Machleidt , J. W. Durso , G. E. Brown

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摘要

We show that the assumption of dropping meson masses together with conventional many-body effects, implemented in the relativistic Dirac-Brueckner formalism, explains nuclear saturation. We use a microscopic model for correlated $2\pi$ exchange and include the standard many-body effects on the in-medium pion propagation, which initially increase the attractive nucleon-nucleon ( $NN$ ) potential with density. For the vector meson exchanges in both the $\pi\pi$ and $NN$ sector, we assume Brown-Rho scaling which---in concert with `chiral' $\pi\pi$ contact interactions---reduces the attraction at higher densities.

关键词

nuclear matter nuclear physics nuclear symmetry energy

引用

@article{arxiv.nucl-th/9706006,
  title  = {Nuclear Saturation with in-Medium Meson Exchange Interactions},
  author = {R. Rapp and R. Machleidt and J. W. Durso and G. E. Brown},
  journal= {arXiv preprint arXiv:nucl-th/9706006},
  year   = {2009}
}

备注

5 pages REVTeX, 2 eps-figures included, submitted to Phys. Rev. Lett

Nuclear Saturation with in-Medium Meson Exchange Interactions

摘要

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