2009/03/24 by Y. Aoki, Sz. Borsanyi, S. Durr +4 · 1 citation
Physics and Astronomy · #hep-lat
paper · pdf · doi:10.1088/1126-6708/2009/06/088
published as JHEP 0906:088,2009 · 19 pages, 8 figures, 3 tables
arxiv created 2009/03/24 · arxiv updated 2009/12/01
We extend our previous study [Phys. Lett. B643 (2006) 46] of the cross-over temperatures (Tc) of QCD. We improve our zero temperature analysis by using physical quark masses and finer lattices. In addition to the kaon decay constant used for scale setting we determine four quantities (masses of the Ωbaryon, K^*(892) and ϕ(1020) mesons and the pion decay constant) which are found to agree with experiment. This implies that --independently of which of these quantities is used to set the overall scale-- the same results are obtained within a few percent. At finite temperature we use finer lattices down to a <= 0.1 fm (Nt=12 and Nt=16 at one point). Our new results confirm completely our previous findings. We compare the results with those of the 'hotQCD' collaboration.