Light quark masses in quenched QCD with exact chiral symmetry

May, 2002
4 pages
Published in:
  • Phys.Lett.B 538 (2002) 298-300
e-Print:
Report number:
  • NTUTH-02-505B

Citations per year

200220032004200551
Abstract: (Elsevier)
The parameters in the pseudoscalar meson mass formula in quenched chiral perturbation theory to one-loop order are determined by quenched lattice QCD with overlap Dirac operator, and from which the light quark masses are determined with the experimental inputs of pion and kaon masses, and the pion decay constant. Our results are m u , d =5.3±0.3 MeV, and m s =115±8 MeV, in the MS scheme at scale μ =2 GeV.
  • 11.15.Ha
  • 11.30.Rd
  • 12.38.Gc
  • Chiral perturbation theory
  • Chiral symmetry
  • Lattice QCD
  • Overlap Dirac quark
  • fermion: lattice field theory
  • gauge field theory: SU(3)
  • approximation: quenching