Details

Autor(en) / Beteiligte

• Bazavov, A.
• Brambilla, N.
• Ding, H.-T.
• Petreczky, P.
• Schadler, H.-P.
• Vairo, A.
• Weber, J. H.

Titel

Polyakov loop in 2 + 1 flavor QCD from low to high temperatures

Ist Teil von

• Physical review. D, 2016-06, Vol.93 (11), Article 114502

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We study the free energy of a static quark in QCD with 2+1 flavors in a wide temperature region, 116MeV<T<5814MeV, using the highly improved staggered quark (HISQ) action. We analyze the transition region in detail, obtain the entropy of a static quark, show that it peaks at temperatures close to the chiral crossover temperature and also revisit the temperature dependence of the Polyakov loop susceptibilities using gradient flow. We discuss the implications of our findings for the deconfinement and chiral crossover phenomena at physical values of the quark masses. Finally a comparison of the lattice results at high temperatures with the weak-coupling calculations is presented.