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Non-perturbative quark mass renormalization in two-flavor QCD

2005/07/31 by Michele Della Morte, Roland Hoffmann, Francesco Knechtli +5 · 11 citations
Physics and Astronomy · #Bottom quark #Down quark #High-Energy Particle Collisions Research #Lattice QCD #Massless particle #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Renormalization #Renormalization group #Top quark #Up quark #hep-lat #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2005.09.028

published as Nucl.Phys. B729 (2005) 117-134 · 25 pages, 6 figures; sections 1 and 4 rearranged, minor change to the summary plot

arxiv created 2005/09/01 · openalex publication_date 2005/10/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The running of renormalized quark masses is computed in lattice QCD with two flavors of massless O(a) improved Wilson quarks. The regularization and flavor independent factor that relates running quark masses to the renormalization group invariant ones is evaluated in the Schroedinger Functional scheme. Using existing data for the scale r0 and the pseudoscalar meson masses, we define a reference quark mass in QCD with two degenerate quark flavors. We then compute the renormalization group invariant reference quark mass at three different lattice spacings. Our estimate for the continuum value is converted to the strange quark mass with the help of chiral perturbation theory.

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