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High Energy Physics - Lattice

arXiv:2111.10340 (hep-lat)
[Submitted on 19 Nov 2021]

Title:Chromoelectric and chromomagnetic correlators at high temperature from gradient flow

Authors:Julian Mayer-Steudte, Nora Brambilla, Viljami Leino, Peter Petreczky
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Abstract:The heavy quark diffusion coefficient is encoded in the spectral functions of the chromoelectric and the chromomagnetic correlators that are calculable on the lattice. We study the chromoelectric and the chromomagnetic correlator in the deconfined phase of SU(3) gauge theory using Symanzik flow at two temperatures $1.5T_c$ and $10000 T_c$, with $T_c$ being the phase transition temperature. To control the lattice discretization errors and perform the continuum limit we use several temporal lattice extents $N_t=16,20,24$ and 28. We observe that the flow time dependence of the chromomagnetic correlator is quite different from chromoelectric correlator most likely due to the anomalous dimension of the former as has been pointed out recently in the literature.
Comments: 9 pages, 6 figures, The 38th International Symposium on Lattice Field Theory, LATTICE2021, 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology
Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th); Nuclear Theory (nucl-th)
Report number: TUM-EFT 155/21
Cite as: arXiv:2111.10340 [hep-lat]
  (or arXiv:2111.10340v1 [hep-lat] for this version)
  https://doi.org/10.48550/arXiv.2111.10340

Submission history

From: Julian Mayer-Steudte [view email]
[v1] Fri, 19 Nov 2021 17:41:26 UTC (5,094 KB)
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