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A measurement of AFBb in lifetime tagged heavy flavour Z decays

Buskulic, D.
•
Casper, D.
•
de Bonis, I.
altro
Zobernig, G.
1994
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
A new measurement of the forward-backward asymmetry in Z--> bb decays is presented. Hadrons from b decays are tagged using their long lifetimes. The b quark charge and direction are reconstructed with a hemisphere charge algorithm. The asymmetry and reconstructed b hemisphere charge are measured in the 69 pb-1 of data collected by ALEPH during 1991, 1992 and 1993. They are used to extract sin2θWeff, which is determined to be 0.2315 +/- 0.0016 (stat.) +/- 0.0009 (syst.), corresponding to an AFBb of 0.0992 +/- 0.0084 (stat.) +/- 0.0046 (syst.).
DOI
10.1016/0370-2693(94)91564-4
WOS
WOS:A1994PE04000017
Archivio
http://hdl.handle.net/11368/2563401
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0042862944
Diritti
metadata only access
Soggetti
  • ALEPH Experiment

Scopus© citazioni
16
Data di acquisizione
Jun 15, 2022
Vedi dettagli
Web of Science© citazioni
17
Data di acquisizione
Mar 26, 2024
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