CERN Accelerating science

Article
Report number hep-ex/0002024 ; CERN-EP-99-170 ; CERN-EP-99-170
Title Measurements of Rb, AFBb and AFBc in e+e Collisions at 130-189 GeV
Author(s) OPAL Collaboration  Εμφάνιση και των 314 συγγραφέων
Affiliation (CERN)
Publication 2000
Imprint 29 Nov 2000
Number of pages 36
Note 34 pages, 8 figures, submitted to Eur. Phys. J. C Report-no: CERN-EP/99-170
In: Eur. Phys. J. C 16 (2000) 41-60
DOI 10.1007/s100520050002
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; OPAL
Abstract The cross-section ratio Rb=sigma(e+e- to b-antib)/sigma(e+e- to q-antiq) andthe bottom and charm forward-backward asymmetries AFB^b and AFB^c are measuredusing event samples collected by the OPAL detector at centre-of-mass energiesbetween 130 and 189 GeV. Events with bottom quark production are selected witha secondary vertex tag, and a hemisphere charge algorithm is used to extractAFB^b. In addition, the bottom and charm asymmetries are measured using leptonsfrom semileptonic decays of heavy hadrons and pions from D*+ to D0pi+ decays.The results are in agreement with the Standard Model predictions.

Corresponding record in: Inspire
Email contact: dave.miller@cern.ch


 Δημιουργία εγγραφής 2000-02-09, τελευταία τροποποίηση 2021-10-29


Πλήρες κείμενο:
0002024 - Κατέβασμα πλήρες κειμένουPDF
arXiv:hep-ex_0002024 - Κατέβασμα πλήρες κειμένουPDF
εξωτερικός σύνδεσμος:
Κατέβασμα πλήρες κειμένουhep-ex/0002024 PDF
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