Improved lattice fermion action for heavy quarks

被引：0

作者：

Yong-Gwi Cho

Shoji Hashimoto

Andreas Jüttner

Takashi Kaneko

Marina Marinkovic

Jun-Ichi Noaki

Justus Tobias Tsang

机构：

[1] University of Tsukuba,Graduate School of Pure and Applied Sciences

[2] High Energy Accelerator Research Organization (KEK),School of High Energy Accelerator Science

[3] The Graduate University for Advanced Studies (Sokendai),School of Physics and Astronomy

[4] University of Southampton,undefined

[5] CERN,undefined

[6] Physics Department,undefined

来源：

Journal of High Energy Physics | / 2015卷

关键词：

Lattice QCD; Heavy Quark Physics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We develop an improved lattice action for heavy quarks based on Brillouintype fermions, that have excellent energy-momentum dispersion relation. The leading discretization errors of O(a) and O(a2) are eliminated at tree-level. We carry out a scaling study of this improved Brillouin fermion action on quenched lattices by calculating the charmonium energy-momentum dispersion relation and hyperfine splitting. We present a comparison to standard Wilson fermions and domain-wall fermions.

引用

共 53 条

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