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Self-Energy of Decuplet Baryons in Nuclear Matter

Authors
  • Ouellette, Stephen M.
  • Seki, Ryoichi
Type
Published Article
Publication Date
Feb 25, 1997
Submission Date
Feb 25, 1997
Identifiers
DOI: 10.1016/S0370-2693(97)00540-6
arXiv ID: hep-ph/9702422
Source
arXiv
License
Unknown
External links

Abstract

We calculate, in chiral perturbation theory, the change in the self-energy of decuplet baryons in nuclear matter. These self-energy shifts are relevant in studies of meson-nucleus scattering and of neutron stars. Our results are leading order in an expansion in powers of the ratio of characteristic momenta to the chiral symmetry-breaking scale (or the nucleon mass). Included are contact diagrams generated by 4-baryon operators, which were neglected in earlier studies for the $\Delta$ isomultiplet but contribute to the self-energy shifts at this order in chiral perturbation theory.

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