scholarly journals Isentropic Equation of State of Two-Flavour QCD in a Quasi-Particle Model

2006 ◽  
Vol 27 (4) ◽  
pp. 397-402 ◽  
Author(s):  
M. Bluhm ◽  
B. Kämpfer ◽  
R. Schulze ◽  
D. Seipt
Keyword(s):  
Equation Of State ◽  
Particle Model ◽  
Quasi Particle

scholarly journals Equation of States and Charmonium Suppression in Heavy-Ion Collisions

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Indrani Nilima ◽  
Vineet Kumar Agotiya
Keyword(s):  
Equation Of State ◽  
Heavy Ion ◽  
Particle Model ◽  
Quasi Particle ◽  
Ion Collisions ◽  
Debye Mass ◽  
Charmonium Suppression ◽  
Quark Potential ◽  
Heavy Quark Potential ◽  
Charmonium States

The present article is the follow-up of our work Bottomonium suppression in quasi-particle model, where we have extended the study for charmonium states using quasi-particle model in terms of quasi-gluons and quasi quarks/antiquarks as an equation of state. By employing medium modification to a heavy quark potential thermodynamic observables, viz., pressure, energy density, speed of sound, etc. have been calculated which nicely fit with the lattice equation of state for gluon, massless, and as well massive flavored plasma. For obtaining the thermodynamic observables we employed the debye mass in the quasi particle picture. We extended the quasi-particle model to calculate charmonium suppression in an expanding, dissipative strongly interacting QGP medium (SIQGP). We obtained the suppression pattern for charmonium states with respect to the number of participants at mid-rapidity and compared it with the experimental data (CMS JHEP) and (CMS PAS) at LHC energy (Pb+Pb collisions, sNN = 2.76 TeV).

scholarly journals The QCD equation of state near Tc within a quasi-particle model

2005 ◽  
Vol 620 (3-4) ◽  
pp. 131-136 ◽  
Author(s):  
M. Bluhm ◽  
B. Kämpfer ◽  
G. Soff
Keyword(s):  
Equation Of State ◽  
Particle Model ◽  
Quasi Particle

THE EQUATION OF STATE OF QUASI-PARTICLE MODEL OF QUARK–GLUON PLASMA AT FINITE CHEMICAL POTENTIAL

2010 ◽  
Vol 25 (01) ◽  
pp. 47-54 ◽  
Author(s):  
A-MENG ZHAO ◽  
JING CAO ◽  
LIU-JUN LUO ◽  
WEI-MIN SUN ◽  
HONG-SHI ZONG
Keyword(s):  
Equation Of State ◽  
Effective Mass ◽  
Quark Gluon Plasma ◽  
Chemical Potential ◽  
Gluon Plasma ◽  
Quark Propagator ◽  
Particle Model ◽  
Quasi Particle ◽  
Model Independent ◽  
Free Quark

In this letter we propose a new method of calculating the equation of state (EOS) of quasi-particle model of quark–gluon plasma at finite chemical potential. In the quasi-particle model the quark propagator has the form of a free quark propagator with a temperature and density dependent effective mass. From this quark propagator the EOS at finite chemical potential is calculated using the model-independent formula proposed in Refs. 16 and 17. A comparison between our EOS and the cold, perturbative EOS of QCD proposed in Ref. 23 is made.

scholarly journals Bottomonium Suppression in Nucleus-Nucleus Collisions Using Effective Fugacity Quasi-Particle Model

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Indrani Nilima ◽  
Vineet Kumar Agotiya
Keyword(s):  
Experimental Data ◽  
Equation Of State ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Particle Model ◽  
Quasi Particle ◽  
Cornell Potential ◽  
Ion Collisions ◽  
Debye Mass ◽  
Dissociation Temperature

We have studied the equation of state and dissociation temperature of bottomonium state by correcting the full Cornell potential in isotropic medium by employing the effective fugacity quasi-particle Debye mass. We had also calculated the bottomonium suppression in an expanding, dissipative strongly interacting QGP medium produced in relativistic heavy-ion collisions. Finally we compared our results with experimental data from RHIC 200GeV/nucleon Au-Au collisions, LHC 2.76 TeV/nucleon Pb-Pb, and LHC 5.02 TeV/nucleon Pb-Pb collisions as a function of number of participants.

scholarly journals Baryon number fluctuations in quasi-particle model

2017 ◽  
Vol 77 (4) ◽  
Author(s):  
Ameng Zhao ◽  
Xiaofeng Luo ◽  
Hongshi Zong
Keyword(s):  
Baryon Number ◽  
Particle Model ◽  
Quasi Particle

A phenomenological test of the independent quasi-particle model

1967 ◽  
Vol 103 (2) ◽  
pp. 257-299 ◽  
Author(s):  
Vincent Gillet ◽  
Bertrand Giraud ◽  
Mannque Rho
Keyword(s):  
Particle Model ◽  
Quasi Particle

scholarly journals Effect of Magnetic Field on Dilepton Production Rate in Relativistic Heavy Ion Collisions

2020 ◽  
Vol 12 (2) ◽  
pp. 215-221
Author(s):  
P. K. Sethy ◽  
Y. Kumar ◽  
S. S. Singh
Keyword(s):  
Magnetic Field ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Particle Model ◽  
Heavy Ion Collision ◽  
Dilepton Production ◽  
Quasi Particle ◽  
Ion Collisions ◽  
Ion Collision ◽  
Good Agreement

It is believed that a transient strong magnetic field is generated in heavy-ion collision. The strength of this field perpendicular to the reaction plane and is estimated to be around eB=0.03GeV2 at RHIC and eB=0.3GeV2 at LHC. We study the effect of this magnetic field on dilepton yield using a modified quasi particle model. The results show a clear enhancement in dilepton yield and our result is in good agreement with the recently reported results.

scholarly journals Landau's statistical mechanics for quasi-particle models

2014 ◽  
Vol 29 (10) ◽  
pp. 1450056 ◽  
Author(s):  
Vishnu M. Bannur
Keyword(s):  
Energy Density ◽  
Statistical Mechanics ◽  
Quark Gluon Plasma ◽  
Statistical Physics ◽  
Particle System ◽  
Gluon Plasma ◽  
Particle Model ◽  
Quasi Particle ◽  
Thermodynamics And Statistical Mechanics

Landau's formalism of statistical mechanics [following L. D. Landau and E. M. Lifshitz, Statistical Physics (Pergamon Press, Oxford, 1980)] is applied to the quasi-particle model of quark–gluon plasma. Here, one starts from the expression for pressure and develop all thermodynamics. It is a general formalism and consistent with our earlier studies [V. M. Bannur, Phys. Lett. B647, 271 (2007)] based on Pathria's formalism [following R. K. Pathria, Statistical Mechanics (Butterworth-Heinemann, Oxford, 1977)]. In Pathria's formalism, one starts from the expression for energy density and develop thermodynamics. Both the formalisms are consistent with thermodynamics and statistical mechanics. Under certain conditions, which are wrongly called thermodynamic consistent relation, we recover other formalism of quasi-particle system, like in M. I. Gorenstein and S. N. Yang, Phys. Rev. D52, 5206 (1995), widely studied in quark–gluon plasma.

scholarly journals A non-abelian quasi-particle model for gluon plasma

2016 ◽  
Vol 763 ◽  
pp. 139-144 ◽  
Author(s):  
E.P. Politis ◽  
C.E. Tsagkarakis ◽  
F.K. Diakonos ◽  
X.N. Maintas ◽  
A. Tsapalis
Keyword(s):  
Gluon Plasma ◽  
Particle Model ◽  
Quasi Particle
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