Velocity Dependence of Baryon Screening in a Hot Strongly Coupled Plasma

Abstract

The L-dependence of the static potential between Nc quarks arranged in a circle of radius L (a "baryon") immersed in the hot plasma of a gauge theory with Nc colors defines a screening length Ls. We use the AdS/CFT correspondence to compute this screening length for the case of heavy quarks in the plasma of strongly coupled N=4 super Yang-Mills theory moving with velocity v relative to the baryon. We find that in the v -> 1 limit, Ls \propto (1-v^2)^{1/4}/T, and find that corrections to this velocity dependence are small at lower velocities. This result provides evidence for the robustness of the analogous behavior of the screening length defined by the static quark-antiquark pair, which has been computed previously and in QCD is relevant to quarkonium physics in heavy ion collisions. Our results also show that as long as the hot wind is not blowing precisely perpendicular to the plane of the baryon configuration that we analyze, the Nc different quarks are not all affected by the wind velocity to the same degree, with those quarks lying perpendicular to the wind direction screened most effectively.

26 pages, 8 figures. Version to appear in JHEP. Footnotes and references added

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Cited by in corpus (10)

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• Temperature versus acceleration: the Unruh effect for holographic models
• Baryon Dissociation in a Strongly Coupled Plasma
• Holographic Brownian Motion in Magnetic Environments
• Stability issues with baryons in AdS/CFT
• Holographic melting of Heavy Baryons in Plasma with Gluon Condensation
• Comments on Baryon Melting in Quark Gluon Plasma with Gluon Condensation
• D4 brane probes in gauge/gravity duality
• Acceleration and Energy Loss in N=4 SYM