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

M. Beneke; A. Signer; V. A. Smirnov

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

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: M. Beneke , A. Signer , V. A. Smirnov

Abstract

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.

Keywords

threshold expansion non-relativistic effective theory bottom quark mass b bbar production next-to-next-to-leading order resummed perturbation theory

Cite

@article{arxiv.hep-ph/9906476,
  title  = {A two-loop application of the threshold expansion: the bottom quark mass from $b\bar{b}$ production},
  author = {M. Beneke and A. Signer and V. A. Smirnov},
  journal= {arXiv preprint arXiv:hep-ph/9906476},
  year   = {2007}
}

Comments

12 pages, LaTeX, 2 figures. Talk presented at RADCOR98, Barcelona, September, 1998. The numerical analysis is superseded by hep-ph/9906475. Provides more details on the calculation

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

Abstract

Keywords

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