In-medium static quark potential from spectral functions on realistic HISQ ensembles

30 Jul 2021, 06:45
15m
Oral presentation QCD at nonzero Temperature and Density QCD at nonzero Temperature and Density

Speaker

Gaurang Parkar (University Of Stavanger)

Description

We study the static energy between a quark anti-quark pair in a thermal medium based on ensembles with $N_f=2+1$ dynamical HISQ flavors. Our dataset spans the phenomenologically relevant temperature range between T=140MeV-2GeV based on lattice sizes $48^3$x10,12 and 16. The real- and imaginary part of the potential is determined from the spectral function of Wilson-line correlators in Coulomb gauge. We assess the information content in the correlation functions and deploy three complementary strategies to reconstruct spectral information: model fits, Pade approximation and the Bayesian BR method. Limitations of each approach are carefully assessed.

Primary author

Gaurang Parkar (University Of Stavanger)

Co-authors

Swagato Mukherjee (Brookhaven National Laboratory) Peter Petreczky (BNL) Rasmus Normann Larsen (State University of New York (US)) Olaf Kaczmarek (University of Bielefeld) Alexander Rothkopf (University of Stavanger) Dr Johannes Heinrich Weber (Munich University of Technology (TUM)) Dibyendu Bala (Bielefeld University)

Presentation materials