A two-loop application of the threshold expansion: the bottom quark mass from $b\bar{b}$ production

Details A two-loop application of the threshold expansion: the bottom quark mass from $b\bar{b}$ production A two-loop application of the threshold expansion: the bottom quark mass from $b\bar{b}$ production

1999-06-24

arxiv.org/abs/hep-ph/9906476v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LaTeX, 2 figures. Talk presented at RADCOR98, Barcelona, September, 1998. The numerical analysis is superseded by he

Scientific paper

We use the threshold expansion and non-relativistic effective theory to
determine the bottom quark mass from moments of the $b\bar{b}$ production cross
section at next-to-next-to-leading order in the (resummed) perturbative
expansion, and including a summation of logarithms. For the $\bar{\rm MS}$ mass
$\bar{m}_b$, we find $\bar{m}_b(\bar{m}_b)=(4.26\pm 0.12)$ GeV.

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