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Measurement of the strong coupling alpha_S from the three-jet rate in e+e- - annihilation using JADE data

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arxiv 1205.3714 v3 pith:IXMKTUWW submitted 2012-05-16 hep-ex

Jochen Schieck , Siegfried Bethke , Stefan Kluth , Christoph Pahl , Zoltan Trocsanyi , the JADE Collaboration This is my paper · ORCID
classification hep-ex
keywords alphacouplingratestrongthree-jetannihilationmeasurementdata
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We present a measurement of the strong coupling alpha_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 alpha_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 alpha_S(MZ) = 0.1199+- 0.0010 (stat.) +- 0.0021 (exp.) +- 0.0054 (had.) +- 0.0007 (theo.) consistent with the world average.

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Cited by 2 Pith papers

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  1. Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range

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    With a remnant-only recoil scheme, the PDF2ISR shower reproduces PB-TMD Drell-Yan predictions and data from sqrt(s)=38.8 GeV to 13 TeV using one energy-independent intrinsic-kT width (q_s=1.04 GeV); low-pT spectra exp...

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