Article

Chiral and deconfinement aspects of the QCD transition

Alexei BazavovPhysics Department, Brookhaven National Laboratory, Upton, New York 11973, USATanmoy BhattacharyaTheoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAM. ChengPhysics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USAC. DeTarDepartment of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USAHeng-Tong DingPhysics Department, Brookhaven National Laboratory, Upton, New York 11973, USASteven GottliebPhysics Department, Indiana University, Bloomington, Indiana 47405, USARajan GuptaTheoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USAPrasad HegdePhysics Department, Brookhaven National Laboratory, Upton, New York 11973, USAUrs M. HellerAmerican Physical Society, One Research Road, Ridge, New York 11961, USAF. KarschFakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, GermanyE. LaermannFakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, GermanyL. LevkovaDepartment of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USASwagato MukherjeePhysics Department, Brookhaven National Laboratory, Upton, New York 11973, USAPéter PetreczkyPhysics Department, Brookhaven National Laboratory, Upton, New York 11973, USAChristian SchmidtFakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, GermanyR. A. SoltzPhysics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USAW. SoeldnerInstitut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, GermanyR. SugarPhysics Department, University of California, Santa Barbara, California 93106, USAD. ToussaintPhysics Department, University of Arizona, Tucson, Arizona 85721, USAWolfgang UngerInstitut für Theoretische Physik, ETH Zürich, CH-8093 Zürich, SwitzerlandPavlos VranasPhysics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA

2012en

ABI

Abstract

We present results on the chiral and deconfinement properties of the QCD transition at finite temperature. Calculations are performed with $2+1$ flavors of quarks using the p4, asqtad, and HISQ/tree actions. Lattices with temporal extent ${N}_{\ensuremath{\tau}}=6$, 8, and 12 are used to understand and control discretization errors and to reliably extrapolate estimates obtained at finite lattice spacings to the continuum limit. The chiral transition temperature is defined in terms of the phase transition in a theory with two massless flavors and analyzed using $O(N)$ scaling fits to the chiral condensate and susceptibility. We find consistent estimates from the HISQ/tree and asqtad actions and our main result is ${T}_{c}=154\ifmmode\pm\else\textpm\fi{}9\text{ }\text{ }\mathrm{MeV}$.

Identifiers

DOI: 10.1103/physrevd.85.054503

Citations and references

Cited by 30 references

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