Determination of light and strange quark masses from full lattice QCD
- Gockeler, M.
- Horsley, R.
- Irving, A. C.
- Pleiter, D.
- Rakow, Paul E. L.
- Schierholz, G.
- Stuben, H.
- QCDSF Collaboration
- UKQCD Collaboration
DOIAbstract
We compute the light and strange quark masses mℓ=(mu+md)/2 and ms , respectively, in unquenched lattice QCD with Nf=2 flavours of light dynamical quarks. The renormalisation constants, which convert bare quark masses into renormalised quark masses, are computed nonperturbatively, including the effect of quark-line disconnected diagrams. We obtain mℓMS¯(2 GeV)=4.7(2)(3) MeV and msMS¯(2 GeV)=119(5)(8) MeV , using r0=0.467 fm to set the scale
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