Isentropic Quark Hadron Phase Boundary and Strangeness Enhancement
Abstract
We develop a phenomenological equation of state for the quarkgluon plasma containing n_{f} flavors when the entropy per baryon ratio remains continuous across the phase boundary and thus derive a generalized expression for the temperature and baryon chemical potential dependent bag constant. The phase boundaries are obtained for an isentropic quarkhadron phase transition after using Gibbs' criteria and the transition to an ideal QGP from the solution of the condition B(μ,T)=0. The variation of critical temperature T_{c} with n_{f} and the temperature variation of the quantity (ɛ4P)/T^{4} which measures the interaction present in QGP are obtained and compared with the results from lattice calculations. Finally we obtain the strange particle ratios on the two phase boundaries which will be useful in identifying deconfined and/or ideal QGP formation in the heavyion experiments.
 Publication:

International Journal of Modern Physics A
 Pub Date:
 2000
 DOI:
 10.1142/S0217751X00001312
 Bibcode:
 2000IJMPA..15.3563P