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High statistics lattice study of stress tensor correlators in pure SU(3) gauge theory

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Borsányi, Sz. ; Fodor, Z. ; Giordano, M. ; Katz, S. D. ; Pásztor, A. ; Ratti, C. ; Schäfer, A. ; Szabó, K. K. ; Tóth, B. C.
Date of publication of this fulltext: 14 Feb 2019 11:31


We compute the Euclidean correlators of the stress tensor in pure SU(3) Yang-Mills theory at finite temperature at zero and finite spatial momenta with lattice simulations. We perform continuum extrapolations using Nτ=10, 12, 16, 20 lattices with renormalized anisotropy 2. We use these correlators to estimate the shear viscosity of the gluon plasma in the deconfined phase. For T=1.5Tc, we estimate η/s=0.17(2) using an ansatz motivated by hydrodynamics.

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