Thermodynamics of (2+1) flavor QGP in quasiparticle model

Abstract

Using our recently developed one parameter quasiparticle model, we analyze more recent (refined) results of (2+1) flavor QGP in lattice simulation of QCD by various groups \cite{f.1,k.1,u.1,d.1}. We got a remarkable good fit to lattice thermodynamics of Ref. Szabolcs Borsanyi {\it et al.}, [hep-lat/1007.2580v2] and reasonable good fit to Ref. A. Bazavov {\it it al.}, Phys. Rev. {\bf D80}, 014504 (2009) by adjusting single parameter of the model which may be related QCD scale parameter. Further we extend our model for above system with zero chemical potential to non-zero chemical potential and predict quark density without any new parameters which may be compared with future lattice data.