Whitening of the Quark-Gluon Plasma

Abstract

Parton-parton collisions do not neutralize local color charges in the quark-gluon plasma as they only redistribute the charges among momentum modes. We discuss color diffusion and color conductivity as the processes responsible for the neutralization of the plasma. For this purpose, we first compute the conductivity and diffusion coefficients in the plasma that is significantly colorful. Then, the time evolution of the color density due to the conductivity and diffusion is studied. The conductivity is shown to be much more efficient than the diffusion in neutralizing the plasma at the scale longer than the screening length. Estimates of the characteristic time scales, which are based on close to global equilibrium computations, suggest that first the plasma becomes white and then the momentum degrees of freedom thermalize.

arXiv comment9 pages, revised, to appear in Phys. Rev. D

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Cited by in corpus (16)

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• What Do Electromagnetic Plasmas Tell Us about Quark-Gluon Plasma?
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• Chromohydrodynamical instabilities induced by relativistic jets
• Effective dynamics of a nonabelian plasma out of equilibrium
• N=4 Super Yang-Mills Plasma
• Primordial Black Holes with QCD Color Charge
• The refractive index in the viscous quark-gluon plasma
• Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma
• Debye Screening of Non-Abelian Plasmas in Curved Spacetimes
• Color-electric conductivity in a viscous quark-gluon plasma
• Effects of magnetic field on the evolution of energy density fluctuations
• Collective excitations in the hot QCD medium and the propagation of Heavy Quarks
• Soft interactions in jet quenching
• Exciting gauge unstable modes of the quark-gluon plasma by relativistic jets