Light Quark Masses with an O(a)-Improved Action

Details Light Quark Masses with an O(a)-Improved Action Light Quark Masses with an O(a)-Improved Action

1996-09-05

arxiv.org/abs/hep-lat/9609014v2

Nucl.Phys.Proc.Suppl.53:289-291,1997

Physics

High Energy Physics

High Energy Physics - Lattice

3 pgs. 3 figures. espcrc2.sty included. Talk presented at LATTICE96(phenomenology)

Scientific paper

10.1016/S0920-5632(96)00639-1

We present the recent Fermilab calculations of the masses of the light
quarks, using tadpole-improved Sheikholeslami-Wohlert (SW) quarks. Various
sources of systematic errors are studied. Our final result for the average
light quark mass in the quenched approximation evaluated in the $\bar{MS}$
scheme is $\bar{m}_q(\mu=2 GeV;n_f=0)= (m_u+m_d)/2=3.6 \pm 0.6 MeV$.

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