E. Shintani, S. Aoki, H. Fukaya, S. Hashimoto, T. Kaneko, T. Onogi, and N. Yamada (JLQCD Collaboration)
Diogo Boito, Maarten Golterman, Kim Maltman, James Osborne, and Santiago Peris
Phys. Rev. D 91 034003 (2015)