Improvement via hypercubic smearing in triplet and sextet QCD
High Energy Physics - Lattice
2011-06-07 v3
Abstract
We study non-perturbative improvement in SU(3) lattice gauge theory coupled to fermions in the fundamental and two-index symmetric representations. Our lattice action is defined with hypercubic smeared links incorporated into the Wilson-clover fermion kernel. Using standard Schroedinger-functional techniques we estimate the clover coefficient Csw and find that discretization errors are much smaller than in thin-link theories.
Keywords
Cite
@article{arxiv.1012.2819,
title = {Improvement via hypercubic smearing in triplet and sextet QCD},
author = {Yigal Shamir and Benjamin Svetitsky and Evgeny Yurkovsky},
journal= {arXiv preprint arXiv:1012.2819},
year = {2011}
}
Comments
4 pages, 2 figures; v3: The analysis has been extensively revised. Conclusions are the same. Final version