Measurements of RbRb, AbFB, and AcFB in e+e− collisions at 130 – 189 GeV

Kartvelishvili, Vakhtang (2000) Measurements of RbRb, AbFB, and AcFB in e+e− collisions at 130 – 189 GeV. European Physical Journal C: Particles and Fields, 16 (1). pp. 41-60. ISSN 1434-6044

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Abstract

The cross-section ratio Rb=σ(e+e−→bb¯¯¯)/σ(e+e−→qq¯) and the bottom and charm forward-backward asymmetries AbFB and AcFB are measured using event samples collected by the OPAL detector at centre-of-mass energies between 130 and 189 GeV. Events with bottom quark production are selected with a secondary vertex tag, and a hemisphere charge algorithm is used to extract AbFB. In addition, the bottom and charm asymmetries are measured using leptons from semileptonic decays of heavy hadrons and pions from D∗+→D0π+ decays. The results are in agreement with the Standard Model predictions.

Item Type: Journal Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 82860
Deposited By: ep_importer_pure
Deposited On: 14 Nov 2016 16:14
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 09:08
URI: https://eprints.lancs.ac.uk/id/eprint/82860

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