Eur. Phys. J. C (2009) 60: 181-196
https://doi.org/10.1140/epjc/s10052-009-0930-5

Regular Article - Experimental Physics

Study of moments of event shapes and a determination of α _S using e⁺e⁻ annihilation data from JADE

¹ Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, Munich, Germany
² Excellence Cluster Universe, Technische Universität München, Boltzmannstr. 2, 85748, Garching, Germany

^* e-mail: pahl@mppmu.mpg.de

Received: 15 October 2008
Revised: 14 January 2009
Published online: 21 February 2009

Abstract

Data from e⁺e⁻ annihilation into hadrons, collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV, are used to study moments of event shape distributions. Models with hadronisation parameters tuned to the LEP 1 precision data provide an adequate description of the low energy data studied here. The NLO QCD calculations, however, show systematic deficiencies for some of the moments. The strong coupling measured from the moments which are reasonably described by NLO QCD, is consistent with the world average.