Quark-Hadron Phase Transition in DGP Brane Gravity with Bulk Scalar Field

Abstract

A DGP brane-world framework is picked out to study quark-hadron phase transition problem. The model also includes a bulk scalar field in agreement with string theory prediction. The work is performed utilizing two formalisms as: smooth crossover approach and first order approach, and the results are plotted for both branches of DGP model. General behavior of temperature is the same in these two approaches and it decrease by passing time and expanding Universe. Phase transition occurs at about micro-second after the big bang. The results show that transition time depends on brane tension value in which larger brane tension comes to earlier transition time.

14 pages, 13 figures

References in corpus (10)

• The QCD Equation of State with almost Physical Quark Masses
• Equation of state and QCD transition at finite temperature
• Lattice QCD Calculation for the Physical Equation of State
• Phase conversion in a weakly first-order quark-hadron transition
• The order, shape and critical point for the quark-gluon plasma phase transition
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• Quark-Hadron Phase Transitions in Brane-World Cosmologies
• Brane Cosmology with a Non-Minimally Coupled Bulk-Scalar Field
• Hubble Parameter in QCD Universe for finite Bulk Viscosity
• Quark-hadron phase transition in Brans-Dicke brane gravity