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Measurement of the effective weak mixing angle by jet-charge asymmetry in hadronic decays of the Z boson

Journal article published in 1998 by F. de Notaristefani, Zhang Zp, M. Acciarri, O. Adriani, M. Aguilar-Benitez, Wang Zm, S. P. Ahlen ORCID, J. Alcaraz, G. Alemanni, Xu Zz, James V. Allaby, A. Aloisio, Mg G. Alviggi, Alviggi Mg, G. Ambrosi and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The coupling of the Z boson to quarks is studied in a sample of about 3.5 million hadronic Z decays collected by the L3 experiment at LEP from 1991 to 1995. The forward-backward quark charge asymmetry is measured by means of a jet charge technique. From the measured asymmetries, the effective weak mixing angle is determined to be sin(2)(w) = 0.2327 +/- 0.0012(stat,) +/- 0.0013(syst.). (C) 1998 Published by Elsevier Science B.V. All rights reserved.