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Zeitschrift für Physik C Particles and Fields

, Volume 44, Issue 3, pp 493–502 | Cite as

A realistic approach to the standardZ peak

  • D. Yu. Bardin
  • M. S. Bilenky
  • G. V. Mitselmakher
  • T. Riemann
  • M. Sachwitz
Article

Abstract

The use of four gauge invariant form factors allows a dense notation of electroweak one loop effects in muon pair production frome+e-annihilation. These form factors may be interpreted as finite renormalizations of the muon decay constant and of the weak mixing angle. Such a formulation is well adopted for use in Monte Carlo programs. The general formulae are applied to a realistic line shape scan of theZ boson resonance. For a precise determination of theZ boson's mass and width it is sufficient to take data in the small energy region within\(\sqrt s = M_z \pm \Gamma _z /2\). Finally, it is demonstrated that a simple model independent ansatz yields nearly equally good results.

Keywords

Form Factor Pair Production Realistic Line Line Shape Decay Constant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • D. Yu. Bardin
    • 1
  • M. S. Bilenky
    • 1
  • G. V. Mitselmakher
    • 1
  • T. Riemann
    • 2
  • M. Sachwitz
    • 2
  1. 1.Joint Institute for Nuclear ResearchDubnaUSSR
  2. 2.Institut für HochenergiephysikBerlin-ZeuthenGerman Democratic Republic

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