Speaker
Prof.
Heng-Tong DING
(Central China Normal University)
Description
We present updated studies of chiral phase transition in Nf=2+1 and 3 QCD based on the simulations using Highly Improved Staggered Quarks on lattices with temporal extent $N_\tau$ =6 at vanishing baryon chemical potential. In Nf=2+1 QCD we have performed simulations with a strange quark fixed to its physical value and two degenerate light quarks
whose values are adjusted to have 5 values of Goldstone pion masses in the region of 160 - 80 MeV in the continuum limit. Datasets with more values of temperature near chiral phase transition temperature
are produced compared to our previous study (1312.0119). The universal scaling behavior of chiral condensates as well as chiral susceptibilities
and uncertainties of the determination of non-universal parameters, e.g. chiral phase transition temperature Tc, are discussed. Simulations with 3 degenerate quarks have also been performed with more temperature values and with almost doubled statistics compared to our previous investigation (1302.5740). Signatures of first order phase transition and the estimate of the value of critical quark mass where the second order phase transition ends are discussed.
Primary author
Prof.
Heng-Tong DING
(Central China Normal University)
Co-author
Dr
Prasad Hegde
(Central China Normal University)
