Abstract
In the proposed field theoretic model to study nuclear matter and its phase transition to quark matter, vector mesons (ωμ) have the usual coupling to fermionic currents and also scalar type coupling involving ωμωμ with fermionic fields and scalar mesons. The effect of this modified vector meson interaction for cold symmetric nuclear matter is investigated using relativistic mean-field theory. One of the striking features of the model is that at extremely high density part of the energy density due to vector mesons is proportional to the density ρ (instead of ρ2 as in Walecka model, Boguta model etc.) where Fermi gas energy density varies as ρ4/3.
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