Large Strangeness as a QGP Signal in an Isentropic Quark-Hadron Phase Transition

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dc.creatorPatra, B. K.
dc.creatorSingh, K. K.
dc.creatorSingh, C. P.
dc.date1998-09-11
dc.date.accessioned2026-07-07T04:04:48Z
dc.date.available2026-07-07T04:04:48Z
dc.descriptionLattice QCD results reveal that the critical parameters and the order of the quark-hadron phase transition are quite sensitive to the number of dynamical flavours and their masses included in the theory. Motivated by this result we develop a phenomenological equation of state for the quark-gluon plasma consisting of $n_f$ flavours retaining the entropy per baryon ratio continuous across the quark-hadron phase boundary. We thus obtain a generalised expression for the temperature and baryon chemical potential dependent bag constant. The results are shown for the realistic case, i.e., involving u, d and s quarks only. We then obtain a phase boundary for an isentropic quark-hadron phase transition using Gibbs' criteria. Similarly another phase boundary is obtained for the transition to an ideal QGP from the solution of the condition $B(μ,T)=0$. The variation of critical temperature $T_c$ with the number of flavours included in the theory. Also the variation of ${(ε-4P)}/T^4$ with temperature are studied and compared with lattice results. Finally the strange particle ratios $\frac{\barΛ}Λ$, $\frac{\barΞ}Ξ$ and $\frac{K^+}{K^-}$ are obtained at both phase boundaries. We propose that their variations with the temperature and baryon chemical potential can be used in identifying the quark-gluon plasma in the recent as well as in future heavy-ion experiments.
dc.description16 pages Latex File, 5 figures available on request
dc.identifierhttps://arxiv.org/abs/hep-ph/9809332
dc.identifierhttp://arxiv.org/abs/hep-ph/9809332
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/48248
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleLarge Strangeness as a QGP Signal in an Isentropic Quark-Hadron Phase Transition
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