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

Borsányi, Sz. (University of Wuppertal, Department of Physics, Wuppertal D-42097, Germany) ; Fodor, Z. (University of Wuppertal, Department of Physics, Wuppertal D-42097, Germany) (Jülich Supercomputing Centre, Jülich D-52425, Germany) (Eötvös University, Budapest 1117, Hungary) ; Giordano, M. (Eötvös University, Budapest 1117, Hungary) ; Katz, S. D. (Eötvös University, Budapest 1117, Hungary) ; Pásztor, A. (University of Wuppertal, Department of Physics, Wuppertal D-42097, Germany) ; Ratti, C. (Department of Physics, University of Houston, Houston, Texas 77204, USA) ; Schäfer, A. (University of Regensburg, Regensburg D-93053, Germany) ; Szabó, K. K. (University of Wuppertal, Department of Physics, Wuppertal D-42097, Germany) (Jülich Supercomputing Centre, Jülich D-52425, Germany) ; Tóth, B. C. (University of Wuppertal, Department of Physics, Wuppertal D-42097, Germany)

27 July 2018

Abstract: 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.


Published in: Physical Review D 98 (2018)
Published by: APS
DOI: 10.1103/PhysRevD.98.014512
arXiv: 1802.07718
License: CC-BY-4.0



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