Static quark-Antiquark pair free energy and screening masses: Continuum results at the QCD physical point

Szabolcs Borsányi, Zoltán Fodor, Sándor D. Katz, Attila Pásztor, Kálmán K. Szabó, Csaba Török

Research output: Contribution to journalConference articlepeer-review

Abstract

We study the correlators of Polyakov loops, and the corresponding gauge invariant free energy of a static quark-Antiquark pair in 2+1 flavor QCD at finite temperature. Our simulations were carried out on Nt = 6, 8, 10, 12, 16 lattices using a Symanzik improved gauge action and a stout improved staggered action with physical quark masses. The free energies calculated from the Polyakov loop correlators are extrapolated to the continuum limit. For the free energies we use a two step renormalization procedure that only uses data at finite temperature. We also measure correlators with definite Euclidean time reversal and charge conjugation symmetry to extract two different screening masses, one in the magnetic, and one in the electric sector, to distinguish two different correlation lengths in the full Polyakov loop correlator. This conference contribution is based on the paper: JHEP 1504 (2015) 138.

Original languageEnglish (US)
Article number178
JournalProceedings of Science
Volume14-18-July-2015
StatePublished - 2015
Event33rd International Symposium on Lattice Field Theory, LATTICE 2015 - Kobe, Japan
Duration: Jul 14 2015Jul 18 2015

All Science Journal Classification (ASJC) codes

  • General

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