EUROPEAN ORGANIZATION FOR PARTICLE PHYSICS CERN-EP/98{32 February 26, 1998 QCD corrections to the forward-backward asymmetries of c and b quarks at the Z pole

نویسندگان

  • D. Abbaneo
  • P. Antilogus
  • T. Behnke
  • S. C. Blyth
  • M. Elsing
  • R. Faccini
  • R.W.L. Jones
  • K. Monig
  • S. Petzold
  • R. Tenchini
چکیده

Measurements of the forward-backward production asymmetry of heavy quarks in Z decays provide a precise determination of sin lept W;e . The asymmetries are sensitive to QCD e ects, in particular hard gluon radiation. In this paper QCD corrections for A b FB and A c c FB are discussed. The interplay between the experimental techniques used to measure the asymmetries and the QCD e ects is investigated using simulated events. A procedure to estimate the correction needed for experimental measurements is proposed, and some speci c examples are given. ( Submitted to The European Physical Journal C )

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تاریخ انتشار 1998