Determining αs using lattice gauge theory
2008
We have used a lattice gauge theory calculation of the 1S–1P splitting in the J/ψ system to obtain a determination of the strong coupling constant. Extrapolating our result to MZ yields αMS(MZ)=0.105±0.004. We review the details of this calculation and report on current efforts to clarify and reduce the corrections and uncertainties.
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