$σ(e^+e^-\to{hadrons})$ and the Heavy Quark Masses

M. Steinhauser

doi:10.1016/S0920-5632(03)80144-5

paper

$σ (e^{+} e^{-} \to ha d r o n s)$ and the Heavy Quark Masses

arXiv:hep-ph/0211035 · doi:10.1016/S0920-5632(03)80144-5

Abstract

The precise data for the total cross section $σ (e^{+} e^{-} \to ha d r o n s)$ from the charm threshold region, when combined with the evaluation of moments with three loop accuracy, lead to a direct determination of the short distance $MS ˉ$ charm quark mass $m_{c} (m_{c}) = 1.304 (27)$ . Applying the same approach to the bottom quark we obtain $m_{b} (m_{b}) = 4.191 (51)$ GeV. A complementary method for the determination of $m_{b}$ is based of the analysis of the $Υ (1 S)$ system which is confronted with a next-to-next-to-next-to-leading order calculation of the corresponding energy level. This leads to $m_{b} (m_{b}) = 4.346 (70)$ GeV.

5 pages, talk presented at RADCOR/Loops and Legs 2002

References in corpus (1)

The Impact of $σ (e^{+} e^{-} \to ha d r o n s)$ Measurements at Intermediate Energies on the Parameters of the Standard Model

σ(e+e−→hadrons) and the Heavy Quark Masses

Abstract

References in corpus (1)

$σ (e^{+} e^{-} \to ha d r o n s)$ and the Heavy Quark Masses