Generalized hybrid derivative coupling model with dilaton field to study phase transition from nuclear matter to quark matter

The properties of isospin symmetric nuclear matter and its phase transition to quark matter at zero temperature have been investigated in the framewor k of generalized hybrid derivative coupling model by including the contribu tion of dilation field. We have compared the results of different models in presence and in absence of dilaton field. The effect of dilaton field beco mes prominent as the density increases. The most striking feature of this w ork is that in presence of dilaton field the vector meson contribution to t otal energy density is approximately proportional to rho(4/3) instead of rh o(2) when the density rho is extremely high.