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Tests of the standard model in leptonic reactions at PETRA energies

Bartel, W. and Finch, Alexander (1986) Tests of the standard model in leptonic reactions at PETRA energies. Zeitschrift für Physik C Particles and Fields, 30 (3). pp. 371-380. ISSN 0170-9739

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Abstract

An analysis of the three leptonic reactionse + e −→e + e −,μ + μ − andτ + τ − over a wide range of energy, 12<s√<46.78GeV is presented. The data were obtained with the JADE detector at thee + e − storage ring PETRA. They are compared to predictions of electroweak theories, in particular the standard model. For the total cross-sections of all three reactions and for the differential cross-section of Bhabha scattering no deviation from QED is found over the entire energy range. The differential cross-sections of μ and τ pairs at high energies show the angular asymmetry predicted by electroweak interference. The axial-vector and vector weak coupling constant, sin2 θ W andM Z are determined and compared to other measurements. Finally, limits on deviations from the standard model are given.

Item Type: Article
Journal or Publication Title: Zeitschrift für Physik C Particles and Fields
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63862
Deposited By: ep_importer_pure
Deposited On: 02 May 2013 14:37
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 14:05
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63862

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