Quark condensate in nuclear matter based on Nuclear Schwinger-Dyson formalism
Tomohiro Mitsumori, Nobuo Noda, Hiroaki Kouno, Akira Hasegawa, Masahiro Nakano
Abstract
The effects of higher order corrections of ring diagrams for the quark condensate are studied by using the bare vertex Nuclear Schwinger Dyson formalism based on σ-ω model. At the high density the quark condensate is reduced by the higher order contribution of ring diagrams more than the mean field theory or the Hartree-Fock .
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