MSbar Charm Mass from Charmonium Sum Rules with Contour Improvement

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dc.creatorHoang, A. H.
dc.creatorJamin, M.
dc.date2004-03-08
dc.date.accessioned2026-07-07T10:29:06Z
dc.date.available2026-07-07T10:29:06Z
dc.descriptionA detailed error analysis is carried out for the determination of the MSbar charm quark mass $\bar m_c(\bar m_c)$ from moments at order alpha_s^2 of the charm cross section in e^+e^- annihilation. To estimate the theoretical uncertainties the renormalization scale is implemented in various ways including energy-dependent functions, which lead to ``contour-improved'' predictions. We obtain $\bar m_c(\bar m_c)=1.29\pm 0.07$ GeV which contains a substantial theoretical uncertainty.
dc.description13 pages, latex, 1 postscript figures included
dc.identifierhttps://arxiv.org/abs/hep-ph/0403083
dc.identifierhttp://arxiv.org/abs/hep-ph/0403083
dc.identifierPhys.Lett.B594:127-134,2004
dc.identifierdoi:10.1016/j.physletb.2004.04.080
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177681
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMSbar Charm Mass from Charmonium Sum Rules with Contour Improvement
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