Measurement of the mass of the Z boson and the energy calibration of LEP

Collaborations
Mar, 1993
8 pages
Published in:
  • Phys.Lett.B 307 (1993) 187-193
Report number:
  • CERN-PPE-93-53,
  • CERN-SL-93-17,
  • FSU-SCRI-94-12

Citations per year

199320012009201720250510152025
Abstract: (Elsevier)
The mass of the Z boson has been determined by combining the data from the four LEP experiments ALEPH, DELPHI, L3 and OPAL. The dominant error arises from uncertainties in the calibration of the energy of the beams in LEP. A programme of investigations including energy calibration by resonant depolarization of transversely polarized beams has led to a significant reduction of the uncertainty on the Z mass compared with the precision achieved with the 1990 data. The mass of the Z is measured to be M Z = (91.187±0.007) GeV.
  • electron positron: colliding beams
  • colliding beams: electron positron
  • electron positron: annihilation
  • annihilation: electron positron
  • Z0: electroproduction
  • electroproduction: Z0
  • Z0: mass
  • mass: Z0
  • energy: beam monitoring
  • beam monitoring: energy