High Energy Physics - Phenomenology
[Submitted on 26 Oct 2016]
Title:Charm Quark Mass with Calibrated Uncertainty
View PDFAbstract:We determine the charm quark mass $\hat{m}_c$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD at ${\cal O} (\hat\alpha_s^3)$. 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 $\hat{m}_c(\hat{m}_c) = 1272 \pm 8$~MeV for $\hat\alpha_s(M_Z) = 0.1182$.
Submission history
From: Hubert Spiesberger [view email][v1] Wed, 26 Oct 2016 20:08:31 UTC (826 KB)
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