Charm Quark Mass with Calibrated Uncertainty

الأصل · EN

We determine the charm quark mass mc from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD at O (αₛ³). Only experimental data for the charm resonances below the continuum threshold are needed in our approach, while the continuum contribution is determined by requiring self-consistency between various sum rules. Existing data from the continuum region can then be used to bound the theoretic uncertainty. Our result is mc(mc) = 1272 ± 8 MeV for αₛ(MZ) = 0.1182.