scholarly journals Shear and bulk viscosities of a weakly coupled quark gluon plasma with finite chemical potential and temperature: Leading-log results

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
Jiunn-Wei Chen ◽  
Yen-Fu Liu ◽  
Yu-Kun Song ◽  
Qun Wang
Keyword(s):  
Quark Gluon Plasma ◽  
Chemical Potential ◽  
Gluon Plasma ◽  
Weakly Coupled

SHEAR VISCOSITY OF HOT QGP AT FINITE CHEMICAL POTENTIAL

2008 ◽  
Vol 23 (31) ◽  
pp. 2699-2710
Author(s):  
HUI LIU ◽  
DEFU HOU ◽  
JIARONG LI
Keyword(s):  
Shear Viscosity ◽  
Quark Gluon Plasma ◽  
Finite Temperature ◽  
Chemical Potential ◽  
Gluon Plasma ◽  
Potential Effect ◽  
Transport Equations ◽  
Weakly Coupled ◽  
Leading Logarithm

The shear viscosity of quark–gluon plasma (QGP) at leading logarithm order at finite temperature and chemical potential in weakly coupled limit is studied by solving transport equations. The result shows that the chemical potential effect adds a positive μ2/T2 correction to the pure temperature case and thus increases the shear viscosity.

scholarly journals Heavy quarkonium in a weakly-coupled quark-gluon plasma below the melting temperature

2010 ◽  
Vol 2010 (9) ◽  
Author(s):  
Nora Brambilla ◽  
Miguel Ángel Escobedo ◽  
Jacopo Ghiglieri ◽  
Joan Soto ◽  
Antonio Vairo
Keyword(s):  
Melting Temperature ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Heavy Quarkonium ◽  
Weakly Coupled

Dilepton production in thermal-dependent baryonic quark–gluon plasma

2014 ◽  
Vol 92 (1) ◽  
pp. 31-35 ◽  
Author(s):  
S. Somorendro Singh ◽  
Yogesh Kumar
Keyword(s):  
Production Rate ◽  
Quark Gluon Plasma ◽  
Chemical Potential ◽  
Gluon Plasma ◽  
Mass Region ◽  
Dilepton Production ◽  
Production Rates ◽  
Baryonic Chemical Potential ◽  
Low Mass ◽  
Quark Mass Dependence

We evolute a fireball of quark–gluon plasma (QGP) at thermal-dependent chemical potential (TDCP) through a statistical model in the pionic medium. The evolution of the fireball is explained through the free energy created in the pionic medium. We study the dilepton production at TDCP from such a fireball of QGP and hadronic phase. In this model, we take a finite quark mass dependence on temperature and parametrization factor. The temperature and factor enhance in the growth of the droplet formation of quarks and gluons as well as in the dilepton production rates. The production rate shows dilepton spectrum in the low mass region of the lepton pair as 0–1.2 GeV and in the intermediate mass region of 1.0–4.0 GeV. The rate of production is observed to be a strong increasing function of the TDCP for quark and antiquark annihilation. We compare the result of dilepton production at this TDCP with the production rate of the recent dilepton productions at zero and finite baryonic chemical potential and found the result far ahead in the production rates of dilepton at TDCP.

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 Negative off-diagonal conductivities in a weakly coupled quark-gluon plasma at the leading-log order

2013 ◽  
Vol 88 (8) ◽  
Author(s):  
Jiunn-Wei Chen ◽  
Yen-Fu Liu ◽  
Shi Pu ◽  
Yu-Kun Song ◽  
Qun Wang
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Weakly Coupled
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