We present an analysis to determine the charm quark mass from non-relativistic sum rules, using a combined approach taking into account fixed-order and effective-theory calculations. Non-perturbative corrections as well as higher-order perturbative corrections are under control. For the PS mass we find mPS(0.7 GeV)=1.50±0.04 GeV which translates into a MS¯ mass of m¯=1.25±0.04 GeV.
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Adrian Signer (2009) studied this question.
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