Chiral transition and deconfinement transition in QCD with the highly improved staggered quark (HISQ) action

P., Petreczky ; Bazavov, A.

Brookhaven National Laboratory

关键词: 73 Nuclear Physics And Radiation Physics;    Quantum Chromodynamics;    71 Classical And Quantum Mechanics, General Physics;    Chiral Symmetry;    72 Physics Of Elementary Particles And Fields;   

DOI  :  10.2172/1043338
RP-ID  :  BNL--96412-2011
RP-ID  :  DE-AC02-98CH10886
RP-ID  :  1043338

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report preliminary results on the chiral and deconfinement aspects of the QCD transition at finite temperature using the Highly Improved Staggered Quark (HISQ) action on lattices with temporal extent of N{sub {tau}} = 6 and 8. The chiral aspects of the transition are studied in terms of quark condensates and the disconnected chiral susceptibility. We study the deconfinement transition in terms of the strange quark number susceptibility and the renormalized Polyakov loop. We made continuum estimates for some quantities and find reasonably good agreement between our results and the recent continuum extrapolated results obtained with the stout staggered quark action.