Uncertainties in the MSbar bottom quark mass from relativistic sum rules
Abstract
A detailed compilation of uncertainties in the MSbar bottom quark mass mb(mb) obtained from low-n spectral sum rules at order alphas2 is given including charm mass effects and secondary b production. The experimental continuum region above 11.1 GeV is treated conservatively. An inconsistency of the PDG averages for the electronic partial widths of Upsilon(4S) and Upsilon(5S) is pointed out. From our analysis we obtain mb(mb)=4.20 0.09 GeV. The impact of future CLEO data is discussed.
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