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Related papers: Quark-Hadron Phase Transition in DGP Brane Gravity…

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A DGP brane-world model with a perfect fluid brane matter including a Brans-Dicke (BD) scalar field on brane has been utilized to investigate the problem of the quark-hadron phase (QHP) transition in early times of the Universe evolution.…

General Relativity and Quantum Cosmology · Physics 2020-07-02 T. Haddad , T. Golanbari , A. Mohammadi , MA. Rasheed , Kh. Saaidi

In the standard picture of cosmology it is predicted that a phase transition, associated with chiral symmetry breaking after the electroweak transition, has occurred at approximately 10 \mu seconds after the Big Bang to convert a plasma of…

High Energy Physics - Theory · Physics 2015-05-13 K. Atazadeh , A. M. Ghezelbash , H. R. Sepangi

In this work, a brane world model with a perfect fluid on brane and a scalar field on bulk has been used to study quark-hadron phase transition. The bulk scalar field has an interaction with brane matter. This interaction comes into…

General Relativity and Quantum Cosmology · Physics 2014-05-15 T. Golanbari , A. Mohammadi , Kh. Saaidi

A standard picture in cosmology has been emerging over the past decade in which a phase transition, associated with chiral symmetry breaking after the electroweak transition, has occurred at approximately $10^{-6}$ seconds after the Big…

General Relativity and Quantum Cosmology · Physics 2011-04-04 K. Atazadeh , A. M. Ghezelbash , H. R. Sepangi

In this work, the quark-hadron phase transition in a chameleon Brans-Dicke model of brane world cosmology within an effective model of QCD is investigated. Whereas, in the chameleon Brans-Dicke model of brane world cosmology, the Friedmann…

General Physics · Physics 2014-01-21 Kh. Saaidi , A. Mohammadi , T. Golanbari , H. Sheikhahmadi , B. Ratra

When the universe was about 10 $\mu $seconds old, a first order cosmological quark - hadron phase transition occurred at a critical temperature of around 200 MeV. In this work, we study the quark-hadron phase transition in the context of…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Giuseppe De Risi , Tiberiu Harko , Francisco S. N. Lobo , Chun Shing Jason Pun

We study the quark hadron phase transition in the framework of massive gravity. We show that the modification of the FRW cosmological equations leads to the quark hadron phase transition in the early massive Universe. Using numerical…

General Relativity and Quantum Cosmology · Physics 2016-09-01 K. Atazadeh

The last phase transition predicted by the standard model of particle physics took place at the QCD scale $T\sim200$ MeV when the universe was about $t\sim10^{-5}$ seconds old and the Hubble radius was around 10 Km. In this paper, we…

General Relativity and Quantum Cosmology · Physics 2014-11-20 Malihe Heydari-Fard , Hamid Reza Sepangi

Based on hot big bang theory, the cosmological matter is conjectured to undergo QCD phase transition(s) to hadrons, when the universe was about $1-10 \mu$s old. In the present work, we study the quark-hadron phase transition, by taking into…

Cosmology and Nongalactic Astrophysics · Physics 2012-04-26 A. Tawfik , T. Harko

Using the grand canonical ensemble formulation of a multi-particle statistical system, the thermodynamical description of the dual QCD has been presented in terms of the bag model of hadrons and analyzed for the quark-gluon plasma phase of…

High Energy Physics - Phenomenology · Physics 2015-05-19 H. C. Chandola , Garima Punetha , H. Dehnen

Very dense and/or hot hadronic substance (e.g. the one with energy density greatly exceeding that of a normal nucleus) transforms itself into a subhadronic substance which obeys macroscopic classical physics, in particular suffers phase…

High Energy Physics - Phenomenology · Physics 2016-09-06 E. L. Feinberg

In the standard model of particle physics, the strong force is characterized by the theory of quantum chromodynamics (QCD). It is commonly understood from QCD properties that hadrons, at sufficiently high temperatures or densities, melt…

Nuclear Theory · Physics 2023-11-23 Gao-Chan Yong

We show how to model the transition between distinct quantum Hall plateaus in terms of D-branes in string theory. A low energy theory of 2+1 dimensional fermions is obtained by considering the D3-D7 system, and the plateau transition…

High Energy Physics - Theory · Physics 2009-06-11 Joshua L. Davis , Per Kraus , Akhil Shah

The holographic dual of a finite-temperature gauge theory with a small number of flavours typically contains D-brane probes in a black hole background. At low temperature the branes sit outside the black hole and the meson spectrum is…

High Energy Physics - Theory · Physics 2008-11-26 David Mateos , Robert C. Myers , Rowan M. Thomson

We investigated the effects of bulk scalar field in the braneworld cosmological scenario. The Friedmann equations and acceleration condition in presence of the bulk scalar field for a zero tension brane and cosmological constant are…

General Relativity and Quantum Cosmology · Physics 2011-07-19 Rizwan ul Haq Ansari , P. K. Suresh

We study the nucleation of a quark gluon plasma (QGP) phase in a hadron gas at low temperatures and high baryon densities. This kind of process will presumably happen very often in nuclear collisions at FAIR and NICA. When the appropriate…

High Energy Physics - Phenomenology · Physics 2016-05-18 D. A. Fogaça , S. M. Sanches , R. Fariello , F. S. Navarra

The quark-hadron phase transition at finite temperature and baryon chemical potential is investigated in an extended NJL model with scalar-vector eight-point interaction by comparing the pressure of symmetric nuclear matter with that of the…

High Energy Physics - Phenomenology · Physics 2016-06-21 T. -G. Lee , Y. Tsue , J. da Providencia , C. Providencia , M. Yamamura

Nuclear matter at finite temperature and barion density exhibits several phase transitions that could happen at the early stages of the Universe evolution and could be realized in heavy-ion or hadron-hadron collisions. Microscopic…

High Energy Physics - Phenomenology · Physics 2015-02-26 V. I. Yukalov , E. P. Yukalova

Based on the assumptions of the standard model of cosmology, a phase transition associated with chiral symmetry breaking after the electroweak transition has occurred at approximately $10\mu$ seconds after the Big Bang to convert a plasma…

General Relativity and Quantum Cosmology · Physics 2015-06-19 F. Kheyri , M. Khodadi , H. R. Sepangi

The effect of a sharp front separating the quark-gluon plasma phase from the hadronic phase is investigated. Energy-momentum conservation and baryon number conservation constrain the possible temperature jump across the front. If one…

High Energy Physics - Phenomenology · Physics 2010-11-01 N. Bilic , J. Cleymans , K. Redlich , E. Suhonen
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