Published June 1996 | Version v1
Journal article

Precision electroweak physics at LEP and the top-quark mass

  • 1. CERN, Geneva (Switzerland). PPE Div.
  • 2. LPNHE Ecole Polytechnique, Palaiseau (France). IN2 P3-CNRS

Description

A status of precision measurements of electroweak observables at LEP is presented. The main improvements in 1995 are: final results from the 1993 lineshape scan and new preliminary results on the Z → bb partial width. All other measurements benefit from increased statistics. Progress was made on the calculation of the Bhabba cross-section, and on the estimate of α(MZ2). Finally, the top quark is now established and its mass measured directly. Agreement at the level of 10-3 is found for all purely leptonic or inclusive hadronic quantities with the SM predictions using the measured top mass. Rb is measured to 0.8%; the preliminary average is 3.2σ away from the SM prediction

Additional details

Publishing Information

Journal Title
Nuovo Cimento. A
Journal Volume
109A
Journal Issue
6-7
Journal Page Range
p. 771-785.
ISSN
0369-3546
CODEN
NCIAAT

Conference

Title
6. international symposium on heavy-flavour physics.
Dates
6-10 Jun 1995.
Place
Pisa (Italy).