Spectral properties of nuclear matter

We review self-consistent spectral methods for nuclear matter calculations. The in-medium T-matrix approach is conserving and thermodynamically consistent. It gives both the global and the single-particle properties the system. The T-matrix approximation allows to address the pairing phenomenon in c...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 35; no. 1; pp. 373 - 383
Main Author Bozek, P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2006
Subjects
Approximation
Gluons
Mathematical analysis
Nuclear matter
Physics
Spectral methods
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Summary:We review self-consistent spectral methods for nuclear matter calculations. The in-medium T-matrix approach is conserving and thermodynamically consistent. It gives both the global and the single-particle properties the system. The T-matrix approximation allows to address the pairing phenomenon in cold nuclear matter. A generalization of nuclear matter calculations to the super.uid phase is discussed and numerical results are presented for this case. The linear response of a correlated system going beyond the Hartree-Fock+ Random-Phase-Approximation (RPA) scheme is studied. The polarization is obtained by solving a consistent Bethe-Salpeter (BS) equation for the coupling of dressed nucleons to an external field. We find that multipair contributions are important for the spin(isospin) response when the interaction is spin(isospin) dependent.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/35/1/034