We study infrared conformality of the twelve-flavor QCD on the lattice. Utilizing the highly improved staggered quarks (HISQ) type action which is useful to study the continuum physics, we analyze the lattice data of the mass and the decay constant of a pseudoscalar meson and the mass of a vector meson as well at several values of lattice spacing and fermion mass. Our result is consistent with the conformal hypothesis for the mass anomalous dimension γm∼0.4−0.5.
@article{arxiv.1207.3060,
title = {Lattice study of conformality in twelve-flavor QCD},
author = {Yasumichi Aoki and Tatsumi Aoyama and Masafumi Kurachi and Toshihide Maskawa and Kei-ichi Nagai and Hiroshi Ohki and Akihiro Shibata and Koichi Yamawaki and Takeshi Yamazaki},
journal= {arXiv preprint arXiv:1207.3060},
year = {2013}
}