Tomohiro Mitsumori

Quark condensate in nuclear matter based on nuclear Schwinger-Dyson formalism

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 {sigma}-{omega} model. The correction of the ring diagrams affects the quark condensate when the {sigma} meson {open_quotes}{sigma} term{close_quotes} is large. {copyright} {ital 1997} {ital The American Physical Society}

Compressional Properties of Nuclear Matter in the Relativistic Mean Field Theory with the Excluded Volume Effects

Compressional properties of nuclear matter are studied by using the mean field theory with the excluded volume effects of the nucleons. It is found that the excluded volume effects make it possible to fit the empirical data of the Coulomb coefficient

Meson-Nucleon Vertex Corrections in the Cutoff Field Theory and Tensor Coupling

K_{c}

Vacuum Effects and Compressional Properties of Nuclear Matter in Cutoff Field Theory

of nucleus incompressibility, even if the volume coefficient

Nucleon Mean Free Path in Nuclear Matter Based on Nuclear Schwinger-Dyson Formalism

K

Incompressibility of nuclear matter, and Coulomb and volume-symmetry coefficients of nucleus incompressibility in the relativistic mean field theory

is small(

Effective nucleon mass, incompressibility, and third-order derivative of the nuclear saturation curve in the relativistic mean field theory with vector meson self-interaction

\sim 150

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MeV). However, the symmetry properties favor

Meson self-energies calculated by the relativistic particle-hole-antiparticle representation

K=300\pm 50

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MeV as in the cases of the mean field theory of point-like nucleons.