Quark-hadron phase transition in DGP including BD brane

作     者：Tayeb Golanbari Terife Haddad Abolhassan Mohammadi M.A.Rasheed Kh.Saaidi Tayeb Golanbari;Terife Haddad;Abolhassan Mohammadi;M.A.Rasheed;Kh.Saaidi

作者机构：Department of PhysicsFaculty of ScienceUniversity of KurdistanPasdaran St.P.O.Box 66177-15175SanandajIran Department of PhysicsFaculty of ScienceRazi UniversityKermanshah ***Iran Development Center for Research and Training(DCRT)University of Human DevelopmentSulaimaniKurdistan RegionIraq Department of PhysicsCollege of ScienceUniversity of SulaimaniKurdistan RegionIraq 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2020年第44卷第8期

页      面：98-107页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported financially by Vice Chancellorship of Research and Technology,University of Kurdistan under research Project(98/11/2724) supported financially by Vice Chancellorship of Research and Technology,University of Kurdistan under research Project(98/10/34704) 

主　　题：DGP brane-world quark-hadron phase lattic QCD 

摘      要：A Dvali–Gabadadze–Porrati(DGP)brane-world model with perfect fluid brane matter including a Brans-Dicke(BD)scalar field on brane was utilized to investigate the problem of the quark-hadron phase(QHP)transition in early evolution of the *** presence of the BD scalar field arises with several modified terms in the Friedmann *** the behavior of the phase transition strongly depends on the basic evolution equations,even a small change in these relations might lead to interesting results about the time of *** phase transition is investigated in two scenarios,namely the first-order phase transition and smooth crossover phase *** the first-order scenario,which is used for the intermediate temperature regime,the evolution of the physical quantities,such as temperature and scale factor,are investigated before,during,and after the phase *** results show that the transition occurs in about a *** the following part,the phenomenon is studied by assuming a smooth crossover transition,where the lattice QCD data is utilized to obtain a realistic equation for the state of the *** investigation for this part is performed in the high and low-temperature *** the trace anomaly in the high-temperature regime specifies a simple equation of state,which states that the quark-gluon behaves like ***,in the low-temperature regime,the trace anomaly is affected by discretization effects,and the hadron resonance gas model is utilized *** this model,a more realistic equation of state is found in the low-temperature *** crossover phase transition in both regimes is *** results determine that the transition lasts around a few ***,the transition in the low-temperature regime occurs after the transition in the high-temperature regime.