scholarly journals Effect of running coupling on photon emission from quark gluon plasma

2012 ◽  
Vol 85 (6) ◽  
Author(s):  
Mahatsab Mandal ◽  
Pradip Roy ◽  
Sukanya Mitra ◽  
Sourav Sarkar
Keyword(s):  
Quark Gluon Plasma ◽  
Photon Emission ◽  
Gluon Plasma ◽  
Running Coupling

scholarly journals Photon emission from a momentum-anisotropic quark-gluon plasma

2015 ◽  
Vol 91 (1) ◽  
Author(s):  
Chun Shen ◽  
Jean-François Paquet ◽  
Ulrich Heinz ◽  
Charles Gale
Keyword(s):  
Quark Gluon Plasma ◽  
Photon Emission ◽  
Gluon Plasma

scholarly journals Polarization tensor of magnetized quark-gluon plasma at nonzero baryon density

2021 ◽  
Vol 81 (10) ◽  
Author(s):  
Xinyang Wang ◽  
Igor Shovkovy
Keyword(s):  
Quark Gluon Plasma ◽  
Chemical Potential ◽  
Photon Emission ◽  
Absorptive Part ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Photon Production ◽  
Polarization Tensor ◽  
Baryon Chemical Potential ◽  
Wide Range

AbstractWe derive a general expression for the absorptive part of the one-loop photon polarization tensor in a strongly magnetized quark-gluon plasma at nonzero baryon chemical potential. To demonstrate the application of the main result in the context of heavy-ion collisions, we study the effect of a nonzero baryon chemical potential on the photon emission rate. The rate and the ellipticity of photon emission are studied numerically as a function the transverse momentum (energy) for several values of temperature and chemical potential. When the chemical potential is small compared to the temperature, the rates of the quark and antiquark splitting processes (i.e., $$q\rightarrow q +\gamma $$ q → q + γ and $${\bar{q}}\rightarrow {\bar{q}} +\gamma $$ q ¯ → q ¯ + γ , respectively) are approximately the same. However, the quark splitting gradually becomes the dominant process with increasing the chemical potential. We also find that increasing the chemical potential leads to a growing total photon production rate but has only a small effect on the ellipticity of photon emission. The quark-antiquark annihilation ($$q+{\bar{q}}\rightarrow \gamma $$ q + q ¯ → γ ) also contributes to the photon production, but its contribution remains relatively small for a wide range of temperatures and chemical potentials investigated.

scholarly journals Asymptotic description of finite lifetime effects on the photon emission from a quark-gluon plasma

2014 ◽  
Vol 89 (11) ◽  
Author(s):  
Frank Michler ◽  
Hendrik van Hees ◽  
Dennis D. Dietrich ◽  
Carsten Greiner
Keyword(s):  
Quark Gluon Plasma ◽  
Photon Emission ◽  
Gluon Plasma ◽  
Asymptotic Description ◽  
Lifetime Effects

scholarly journals Photon emission from quark-gluon plasma out of equilibrium

2018 ◽  
Vol 97 (1) ◽  
Author(s):  
Sigtryggur Hauksson ◽  
Sangyong Jeon ◽  
Charles Gale
Keyword(s):  
Quark Gluon Plasma ◽  
Photon Emission ◽  
Gluon Plasma
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