Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-Energy of Decuplet Baryons in Nuclear Matter   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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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: eess