# Quark mass determinations with the RI-SMOM scheme and HISQ action

## TL;DR

This paper uses lattice QCD with the RI-SMOM scheme and HISQ action to determine strange and charm quark masses with 1% precision, analyzing systematic uncertainties and comparing methods.

## Contribution

It provides high-precision quark mass determinations using RI-SMOM scheme on HISQ lattice, including systematic uncertainty analysis and method comparison.

## Key findings

- Quark masses determined with 1% precision.
- Good agreement between RI-SMOM and current-current correlator methods.
- Systematic uncertainties thoroughly analyzed.

## 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.