scholarly journals Screening properties of quark-gluon plasma obtained from distribution and correlation functions of the constituent quasiparticle model

2020 ◽  
Vol 101 (2) ◽  
Author(s):  
V. Filinov ◽  
A. Larkin ◽  
V. Fortov
Keyword(s):  
Quark Gluon Plasma ◽  
Correlation Functions ◽  
Gluon Plasma ◽  
Quasiparticle Model

scholarly journals Meson correlation function and screening mass in thermal QCD

Open Physics ◽  
2012 ◽  
Vol 10 (2) ◽  
Author(s):  
Piotr Czerski
Keyword(s):  
Correlation Function ◽  
Quantum Chromodynamics ◽  
Quark Gluon Plasma ◽  
Correlation Functions ◽  
Large Distance ◽  
Spatial Dependence ◽  
Gluon Plasma ◽  
Perturbative Quantum Chromodynamics ◽  
Perturbative Quantum ◽  
Distance Limit

AbstractAnalytical results for the spatial dependence of the correlation functions for all meson excitations in perturbative Quantum Chromodynamics, the lowest order, are calculated. The meson screening mass is obtained as a large distance limit of the correlation function. Our analysis leads to a better understanding of the excitations of Quark Gluon Plasma at sufficiently large temperatures and may be of relevance for future numerical calculations with fully interacting Quantum Chromodynamics.

Dilepton production as a useful probe of quark gluon plasma with temperature dependent chemical potential quark mass

2016 ◽  
Vol 25 (08) ◽  
pp. 1650049
Author(s):  
Yogesh Kumar ◽  
S. Somorendro Singh
Keyword(s):  
Production Rate ◽  
Quark Gluon Plasma ◽  
Quark Mass ◽  
Chemical Potential ◽  
Gluon Plasma ◽  
Mass Region ◽  
Dilepton Production ◽  
Temperature Dependent ◽  
Quasiparticle Model ◽  
Relevant Range

We extend the previous study of dilepton production using [S. Somorendro Singh and Y. Kumar, Can. J. Phys. 92 (2014) 31] based on a simple quasiparticle model of quark–gluon plasma (QGP). In this model, finite value of quark mass uses temperature dependent chemical potential the so-called Temperature Dependent Chemical Potential Quark Mass (TDCPQM). We calculate dilepton production in the relevant range of mass region. It is observed that the production rate is marginally enhanced from the earlier work. This is due to the effect of TDCPQM and its effect is highly significant in the production of dilepton.

scholarly journals ON CORRELATIONS IN HIGH-ENERGY HADRONIC PROCESSES AND THE CMS RIDGE: A MANIFESTATION OF QUANTUM ENTANGLEMENT?

2012 ◽  
Vol 27 (02) ◽  
pp. 1250008 ◽  
Author(s):  
I. O. CHEREDNIKOV ◽  
N. G. STEFANIS
Keyword(s):  
Angular Correlation ◽  
Quantum Entanglement ◽  
Quark Gluon Plasma ◽  
Correlation Functions ◽  
Charged Particles ◽  
Gluon Plasma ◽  
High Energy ◽  
Pp Collisions ◽  
Qcd Vacuum ◽  
Hadronic States

We discuss the possibility of quantum entanglement for pairs of charged particles produced in high-energy pp-collisions at the LHC. Using a framework of interacting Wilson lines, we calculate 2D and 1D two-particle angular correlation functions in terms of the differences of the pseudorapidities and azimuthal angles of the produced particles. The calculated near-side angular correlation shows a localized maximum around Δϕ≈0, though it is less pronounced compared to the peak observed by the CMS Collaboration. We argue that this soft correlation is universal and insensitive to the specific properties of the matter (quark–gluon plasma, QCD vacuum, etc.) used to describe hadronic states — though such properties can be included to further improve the results.

scholarly journals THERMODYNAMIC AND STATISTICAL MECHANICS INCONSISTENCIES IN QUASIPARTICLE MODELS

2013 ◽  
Vol 28 (02) ◽  
pp. 1350006 ◽  
Author(s):  
VISHNU M. BANNUR
Keyword(s):  
Statistical Mechanics ◽  
Phenomenological Models ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Point Of View ◽  
Nucl Phys ◽  
Large Temperature ◽  
Lattice Data ◽  
Lattice Gauge ◽  
Quasiparticle Model

Here we reanalyze various quasiparticle models of quark gluon plasma from the statistical mechanics and thermodynamics point of view. We investigate the statistical mechanics and thermodynamics inconsistencies involved in these models and their consequences in the observables. Quasiparticle models are phenomenological models with few parameters and by adjusting them all models fit the results of lattice gauge simulation of gluon plasma [G. Boyd et al., Phys. Rev. Lett.75, 4169 (1995); G. Boyd et al., Nucl. Phys. B469, 419 (1996)]. However, after fixing two of the three parameters of the model by physical arguments, only one quasiparticle model, which is consistent with both statistical mechanics and thermodynamics, fits the Bielefeld lattice data [G. Boyd et al., Phys. Rev. Lett.75, 4169 (1995); G. Boyd et al., Nucl. Phys. B469, 419 (1996)]. The same model also fits the recent lattice results of Wuppertal–Budapest group [S. Borsanyi et al., arXiv:1204.6184v1 [hep-lat]], which deals with precision SU(3) thermodynamics for a large temperature range, reasonably well.

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