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

, OPAL Collaboration (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:
ID Code:
82860
Deposited By:
Deposited On:
14 Nov 2016 16:14
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2020 04:28