Lattice QCD results show the color electric correlator relevant for quarkonium decay is not symmetric about τT=1/2 and agrees with NLO perturbation theory at T=10^4 Tc.
The chromoelectric adjoint correlators in Euclidean space at next-to-leading order
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abstract
The physics of quarkonium created in heavy-ion collisions is intrinsically connected to the correlation functions of adjoint chromoelectric fields in quantum chromodynamics. We study such correlation functions in a weak-coupling expansion in a thermal medium. We identify three distinct gauge-invariant correlators, and evaluate them to next-to-leading order. Two of the resulting correlators turn out to be asymmetric. We pinpoint the source of this asymmetry to Matsubara zero modes associated with Wilson lines. The results are shown to agree well with recent lattice calculations at high temperatures.
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Lattice study of correlators for quarkonium decay
Lattice QCD results show the color electric correlator relevant for quarkonium decay is not symmetric about τT=1/2 and agrees with NLO perturbation theory at T=10^4 Tc.