期刊论文

Ding, H. -T.

英文

PHYSICAL REVIEW LETTERS

0031-9007

2019

123

6

062002

10.1103/PhysRevLett.123.062002

This work was supported in part by the Deutsche Forschungsgemeinschaft (DFG) through Grant No.315477589-TRR 211, by Grants No.05P15PBCAA and No.05P18PBCA1 of the German Bundesministerium fur Bildung und Forschung, and by the National Natural Science Foundation of China under Grants No.11775096 and No.11535012. Furthermore, this work was supported by Contract No.DE-SC0012704 with the U.S. Department of Energy, by the Scientific Discovery through Advanced Computing (SciDAC) program funded by the U.S. Department of Energy, by the Office of Science, Advanced Scientific Computing Research and Nuclear Physics, by the DOE Office of Nuclear Physics funded BEST topical collaboration, and by a Early Career Research Award of the Science and Engineering Research Board of the Government of India. Numerical calculations have been made possible through PRACE grants at CSCS, Switzerland, and at CINECA, Italy as well as grants at the Gauss Centre for Supercomputing and NIC-Julich, Germany. These grants provided access to resources on Piz Daint at CSCS and Marconi at CINECA, as well as on JUQUEEN and JUWELS at NIC. Additional calculations have been performed on GPU clusters of USQCD, at Bielefeld University, the Paderborn University, and the Nuclear Science Computing Center at Central China Normal University, Wuhan, China. Some datasets have also partly been produced at the TianHe II Supercomputing Center in Guangzhou.

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We present a lattice-QCD-based determination of the chiral phase transition temperature in QCD with two degenerate, massless quarks and a physical strange quark mass using lattice QCD calculations with the highly improved staggered quarks action. We propose and calculate two novel estimators for the chiral transition temperature for several values of the light quark masses, corresponding to Goldstone pion masses in the range of 58  MeV≲mπ≲163  MeV. The chiral phase transition temperature is determined by extrapolating to vanishing pion m...