MS charm mass from charmonium sum rules with contour improvement

2004/03/08 by André H. Hoang, A. H. Hoang, Matthias Jamin +1
Physics and Astronomy · #Annihilation #Charm (quantum number) #Charm quark #Electron–positron annihilation #Hadron #High-Energy Particle Collisions Research #Mathematical physics #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Renormalization #Scale (ratio) #hep-ph

paper · pdf · doi:10.1016/j.physletb.2004.04.080

published as Phys.Lett.B594:127-134,2004 · 13 pages, latex, 1 postscript figures included

arxiv created 2004/03/08 · openalex publication_date 2004/06/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

A detailed error analysis is carried out for the determination of the MS charm quark mass m̄c(m̄c) from moments at order αs2 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 m̄c(m̄c)=1.29±0.07 GeV which contains a substantial theoretical uncertainty.

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