Lattice determination of light quark masses

1999/08/05 by M. Göckeler, M. Gockeler, R. Horsley +7
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.62.054504

published as Phys.Rev.D62:054504,2000 · Latex, 25 pages, 12 eps figures

arxiv created 1999/08/05 · openalex publication_date 2000/07/27 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A fully nonperturbative lattice determination of the up or down and strange quark masses is given for quenched QCD using both O(a) improved Wilson fermions and ordinary Wilson fermions. For the strange quark mass with O(a) improved fermions we obtain m_s^MS(\ensuremathμ=2GeV)=105(4)MeV, using the interquark force scale r₀. Because of quenching problems, fits are only possible for quark masses larger than the strange quark mass. If we extrapolate our fits to the up or down quark mass we find for the average mass m_l^MS(\ensuremathμ=2GeV)=4.4(2)MeV.

Citations

• Non-perturbative renormalisation of composite operators in lattice QCD
• Quark mass renormalization in the and RI schemes up to the NNLO order
• Scaling of nonperturbativelyO(a)<mml:mn/>-improved Wilson fermions: Hadron spectrum, quark masses, and decay constants
• Charmonium: Comparison with experiment
• Pseudoscalar vertex, Goldstone boson and quark masses on the lattice
• The Static Quark-Antiquark Potential: A ``Classical'' Experiment On The Connection Machine CM-2