Adding omega vector repulsion to the quark-meson soliton model increases nucleon mass and radius and reduces the energy gap to three free quarks, signaling instability.
Improved quark mass density- dependent model with quark-sigma meson and quark-omega meson couplings
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An improved quark mass density- dependent model with the non-linear scalar sigma field and the $\omega$-meson field is presented. We show that the present model can describe saturation properties, the equation of state, the compressibility and the effective nuclear mass of nuclear matter under mean field approximation successfully. The comparison of the present model and the quark-meson coupling model is addressed.
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The nucleon properties in finite temperature and density with vector meson
Adding omega vector repulsion to the quark-meson soliton model increases nucleon mass and radius and reduces the energy gap to three free quarks, signaling instability.