Chiral and deconfinement aspects of the QCD transition

By A. Bazavov, Tanmoy Bhattacharya, M. Cheng, C. DeTar, H. Ding, S. Gottlieb, R. Gupta, P. Hegde, U. Heller, F. Karsch and 11 more. 2011

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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-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 +/- 9 MeV.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/02b2b5447e042e83ef2e96a8b4157ebc3bc70c23

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In Nuclear and High Energy Physics

Citations in the corpus

Heavy quarkonium in extreme conditions (2019, neutral): “[171] (HotQCD collaboration).”
The landscape of QCD axion models (2020, neutral): “[154]) while the parameter β, that depends on the number of quark flavours active at the temperature T and on other details of QCD physics, is found in the DIGA to be of the order of a few × 10−2 [54] (we will adopt for numerical estimates β ≈ 0.”
Primordial gravitational waves, precisely: the role of thermodynamics in the Standard Model (2018, background): “[29], we note that lattice QCD simulations yielded Tc ∼ 150 MeV afterwards [103,104].”
Direct photon production in Pb-Pb collisions at $\sqrt{s_\rm{NN}}$ = 2.76 TeV (2015, background): “The theory of the strong interaction, Quantum ChromoDynamics (QCD), predicts a transition from ordinary nuclear matter to a state where quarks and gluons are no longer confined to hadrons [1,2].”