scholarly journals Thermodynamics of the high temperature Quark-Gluon Plasma

2004 ◽  
Author(s):  
J.-P. Blaizot
Keyword(s):  
High Temperature ◽  
Quark Gluon Plasma ◽  
Gluon Plasma

scholarly journals Perturbative QCD at High Temperature

1997 ◽  
Vol 12 (08) ◽  
pp. 1431-1464 ◽  
Author(s):  
Agustin Nieto
Keyword(s):  
Field Theory ◽  
Free Energy ◽  
Perturbation Theory ◽  
High Temperature ◽  
Perturbative Qcd ◽  
Effective Field Theory ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Effective Field ◽  
Recent Developments

Recent developments of perturbation theory at finite temperature based on effective field theory methods are reviewed. These methods allow the contributions from the different scales to be separated and the perturbative series to be reorganized. The construction of the effective field theory is shown in detail for ϕ4 theory and QCD. It is applied to the evaluation of the free energy of QCD at order g5 and the calculation of the g6 term is outlined. Implications for the application of perturbative QCD to the quark–gluon plasma are also discussed.

scholarly journals The energy of the high-temperature quark-gluon plasma

1993 ◽  
Vol 410 (1) ◽  
pp. 3-22 ◽  
Author(s):  
F.T. Brandt ◽  
J. Frenkel ◽  
J.C. Taylor
Keyword(s):  
High Temperature ◽  
Quark Gluon Plasma ◽  
Gluon Plasma

EFFECTIVE ACTIONS FOR GAUGE THEORIES WITH CHERN-SIMONS TERMS-I

1990 ◽  
Vol 05 (07) ◽  
pp. 1267-1284 ◽  
Author(s):  
B.A. BAMBAH ◽  
C. MUKKU
Keyword(s):  
High Temperature ◽  
Gauge Theory ◽  
Quark Gluon Plasma ◽  
Gauge Theories ◽  
Three Dimensional ◽  
Background Field ◽  
Gluon Plasma ◽  
Feynman Gauge ◽  
Effective Lagrangian ◽  
Chern Simons

The effective Lagrangian for a three-dimensional gauge theory with a Chern-Simons term is evaluated up to one-loop effects. It is shown to be completely finite. It also does not exhibit any imaginary part. The calculation is carried out in a background field analogue of the Feynman gauge and gauge invariance is maintained throughout the calculation. In the appendix, an argument is presented as to why this Feynman gauge may be a “good” gauge for our results to be applied to high temperature QCD and in particular to the quark-gluon plasma.

scholarly journals Topology and axions in QCD

2020 ◽  
Vol 35 (20) ◽  
pp. 2030010
Author(s):  
Maria Paola Lombardo ◽  
Anton Trunin
Keyword(s):  
Dark Matter ◽  
High Temperature ◽  
Quark Gluon Plasma ◽  
Temperature Limit ◽  
Gluon Plasma ◽  
Current Status ◽  
High Temperature Limit

QCD axions are at the crossroads of QCD topology and Dark Matter searches. We present here the current status of topological studies on the lattice, and their implication on axion physics. We outline the specific challenges posed by lattice topology, the different proposals for handling them, the observable effects of topology on the QCD spectrum and its interrelation with chiral and axial symmetries. We review the transition to the quark–gluon plasma, the fate of topology at the transition, and the approach to the high temperature limit. We discuss the extrapolations needed to reach the regime of cosmological relevance, and the resulting constraints on the QCD axion.

scholarly journals THERMODYNAMICS OF THE HIGH-TEMPERATURE QUARK–GLUON PLASMA

2004 ◽  
pp. 60-122 ◽  
Author(s):  
Jean-Paul Blaizot ◽  
Edmond Iancu ◽  
Anton Rebhan
Keyword(s):  
High Temperature ◽  
Quark Gluon Plasma ◽  
Gluon Plasma

La physique de la matière hadronique à haute température telle que décrite par la chromodynamique quantique sur réseau espace–temps

1989 ◽  
Vol 67 (12) ◽  
pp. 1228-1249 ◽  
Author(s):  
Jean Potvin
Keyword(s):  
Phase Transition ◽  
Numerical Simulation ◽  
High Temperature ◽  
Critical Temperature ◽  
Quantum Chromodynamics ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Heavy Quarks ◽  
Hadronic Matter ◽  
The Past

The numerical simulation of quantum chromodynamics on a space–time lattice allows for the calculation of many properties of hadronic matter at high temperature in a direct and in a nonperturbative fashion. This paper will be a review of the calculation techniques and results published in the past 5 years. Among other things, I will discuss the order of the phase transition, the critical temperature, the force between heavy quarks, as well as the thermodynamics and the spectroscopy of the quark–gluon plasma.

scholarly journals SCREENING LENGTH, DISPERSION RELATIONS AND QUARK POTENTIAL IN THERMO FIELD DYNAMICS

2002 ◽  
Vol 17 (21) ◽  
pp. 2911-2923
Author(s):  
WANYUN ZHAO ◽  
F. C. KHANNA
Keyword(s):  
High Temperature ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Dispersion Relations ◽  
Ladder Approximation ◽  
Screening Length ◽  
The Real ◽  
Self Energy ◽  
Thermo Field Dynamics ◽  
Quark Potential

The screening length in a quark–gluon plasma, the dispersion relations of thermal gluon self-energy and the quark potential at high temperature are studied within the thermo field dynamics framework. By calculating the real and imaginary parts, of the gluon self-energy in one-loop order in thermo field dynamics, we obtain an expression for the screening length in a quark–gluon plasma and the dispersion relation between the real and imaginary parts. At high temperature, using photon exchange between electron-positron in a skeleton expansion and ladder approximation, the screened Coulomb potential and an expression for the screened quark potential is obtained.

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