Effects of Meson Mass Reduction on the Properties of Neutron Star Matter
Chang Ho Hyun, Myung Ha Kim, Seung Woo Hong
Abstract
We investigate the effects of meson-mass reduction on the properties of the neutron star matter. We adopt the Brown-Rho scaling law to take into account density dependence of meson masses in the quantum hadrodynamics, quark-meson coupling and modified quark-meson coupling models. It is found that the equation of state becomes stiff when the mass of meson is reduced in dense medium. We discuss its implication on the properties of the neutron star.
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