Schieck, Jochen and Bethke, Siegfried and Kluth, Stefan and Pahl, Christoph and Trocsanyi, Zoltan and Finch, Alexander and Collaboration, JADE (2013) Measurement of the strong coupling alpha_S from the three-jet rate in e+e- - annihilation using JADE data. The European Physical Journal C (EPJ C) - Particles and Fields, 73: 2332. ISSN 1434-6052
Full text not available from this repository.Abstract
We present a measurement of the strong coupling α S using the three-jet rate measured with the Durham algorithm in e+e− -annihilation using data of the JADE experiment at centre-of-mass energies between 14 and 44 GeV. Recent theoretical improvements provide predictions of the three-jet rate in e+e− -annihilation at next-to-next-to-leading order. In this paper a measurement of the three-jet rate is used to determine the strong coupling α S from a comparison to next-to-next-to-leading order predictions matched with next-to-leading logarithmic approximations and yields a value for the strong coupling consistent with the world average.