Towards a non-perturbative computation of the RGI strange quark mass with two dynamical flavors

TL;DR

This paper presents a non-perturbative method to compute the renormalization group invariant strange quark mass using lattice QCD with two dynamical flavors, covering a wide energy range.

Contribution

It introduces a non-perturbative approach to determine the RGI strange quark mass from lattice simulations with two flavors, bridging lattice estimates to continuum results.

Findings

Successful non-perturbative running of quark mass over two orders of magnitude

Preliminary estimate of the strange quark mass in two-flavor QCD

Establishment of a framework connecting lattice and RGI masses

Abstract

The non-perturbative running of the quark mass in the Schroedinger functional scheme is computed over a large energy range (covering scales differing by two orders of magnitude). This allows to relate lattice estimates of the running quark mass to the renormalization group invariant mass. The result is used in a preliminary computation of the strange quark mass in the theory with two flavors of non-perturbatively improved Wilson quarks. A more detailed discussion of the calculation can be found in [1].