2004
DOI: 10.1143/ptp.112.831
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Effective Hadron Masses and Effective Interactions in Nuclear Matter

Abstract: Relations among effective hadron masses, effective interactions and equations of state are studied using a generalized mean-field theory that includes the implicit and explicit density dependence of the effective masses and couplings. We find that we can make the effective ω-meson mass smaller and the equation of state softer simultaneously if the ω-meson mean field is proportional to the baryon density. In this case, there is a simple and exact relation between the effective ω-meson mass and the effective ω-n… Show more

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Cited by 4 publications
(7 citation statements)
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“…In the relativistic meson-nucleon theory, it is known that nonlinear meson-nucleon interactions suppress the effective coupling between mesons and nucleons in the higher density region [28,29,30,31]. It is then strongly expected that a similar situation takes place in the NJL model as soon as higher-order multi-quark interactions are introduced.…”
mentioning
confidence: 99%
“…In the relativistic meson-nucleon theory, it is known that nonlinear meson-nucleon interactions suppress the effective coupling between mesons and nucleons in the higher density region [28,29,30,31]. It is then strongly expected that a similar situation takes place in the NJL model as soon as higher-order multi-quark interactions are introduced.…”
mentioning
confidence: 99%
“…Therefore, we get the relation among the effective masses, the effective couplings and the incompressibility. [10,13]…”
Section: Incompressibility and Symmetry Energymentioning
confidence: 99%
“…For the wellknown parameter sets, [20,22,8,24] this quantity almost vanishes at ρ B = ρ B0 and ρ 3 = 0. [10,13] Similarly, the symmetry energy a 4 is given by…”
Section: Incompressibility and Symmetry Energymentioning
confidence: 99%
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