An AdS/CFT Calculation of Screening in a Hot Wind
By Hong Liu, Kumbakonam R. Rajagopal, U. Wiedemann. 2006
155 citations recorded by the source corpus.
One of the challenges in relating experimental measurements of the suppression in the number of J/ψ mesons produced in heavy ion collisions to lattice QCD calculations is that whereas the lattice calculations treat J/ψ mesons at rest, in a heavy ion collision a c ¯ c pair can have a significant velocity with respect to the hot fluid produced in the collision. The putative J/ψ finds itself in a hot wind. We present the first rigorous non-perturbative calculation of the consequences of a wind velocity v on the screening length L s for a heavy quark-antiquark pair in hot N = 4 supersymmetric QCD. We find L s ( v, T ) = f ( v )[1 − v 2 ] 1 / 4 /πT with f ( v ) only mildly dependent on v and the wind direction. This L s ( v, T ) ∼ L s (0 , T ) / √ γ velocity scaling, if realized in QCD, provides a significant additional source of J/ Ψ suppression at transverse momenta which are high but within experimental reach.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/1782e5f016c40c344a1cd4efc1f7a73994bf40bf
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In Nuclear and High Energy Physics
Citations in the corpus
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