Axial U(1) symmetry at high temperature in 2-flavor lattice QCDKei Suzuki, Sinya Aoki, Yasumichi Aoki, Guido Cossu, Hidenori Fukaya and Shoji HashimotoEPJ Web Conf., 175 (2018) 07025DOI: https://doi.org/10.1051/epjconf/201817507025