Measurement of the strong coupling alpha_s from the 3-jet rate in e+e- annihilation using JADE data
High Energy Physics - Experiment
2012-06-04 v1
Abstract
We describe a measurement of the strong coupling alpha_S(m_Z) from the 3-jet rate in hadronic final states of e+e- annihilation recorded with the JADE detector at centre-of-mass energies of 14 to 44 GeV. The jets are reconstructed with the Durham jet clustering algorithm. The JADE 3-jet rate data are compared with QCD predictions in NNLO combined with resummed NNLA calculations. We find good agreement between the data and the prediction and extract alpha_S(m_Z)= 0.1199 +/- 0.0010(stat.) +/- 0.0021(exp.) +/- 0.0054(had.) +/- 0.0007(theo.).
Keywords
Cite
@article{arxiv.1206.0065,
title = {Measurement of the strong coupling alpha_s from the 3-jet rate in e+e- annihilation using JADE data},
author = {Stefan Kluth},
journal= {arXiv preprint arXiv:1206.0065},
year = {2012}
}
Comments
4 pages, 2 figures, contribution to Moriond QCD 2012