Quark mass determinations with the RI-SMOM scheme and HISQ action
Abstract
Lattice QCD provides several avenues for the high precision determination of quark masses. Using the RI-SMOM scheme applied to lattice calculations with the HISQ action, we obtain mass renormalisation factors that we use to provide strange and charm quark masses with 1% precision. The calculation involves the study of various sources of systematic uncertainty, including an analysis of possible nonperturbative (condensate) contributions. These results allow a comparison of different mass determination methods of comparable precision. In particular we (HPQCD) find good agreement between RI-SMOM and current-current correlator determinations based on the same lattice QCD bare masses, providing a strong test of our understanding of systematic uncertainties.
Keywords
Cite
@article{arxiv.1901.06896,
title = {Quark mass determinations with the RI-SMOM scheme and HISQ action},
author = {A. T. Lytle and C. T. H. Davies and D. Hatton and G. P. Lepage and C. Sturm},
journal= {arXiv preprint arXiv:1901.06896},
year = {2019}
}
Comments
Proceedings from Lattice 2018