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

Collaboration
Aug, 1998

Citations per year

1997200420112018202502468
Abstract: (Elsevier)
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 θ W =0.2327±0.0012(stat.)±0.0013(syst.) .
  • electron positron: colliding beams
  • electron positron: annihilation
  • Z0: electroproduction
  • Z0: hadronic decay
  • bottom: pair production
  • angular distribution: asymmetry
  • charge: asymmetry
  • jet: charge
  • Weinberg angle
  • L3
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