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A Determination of the Centre-of-Mass Energy at LEP2 using Radiative 2-fermion Events

The DELPHI Collaboration·J. Abdallah
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Abstract

Using e+e- -> mu+mu-(gamma) and e+e- -> qqbar(gamma) events radiative to the Z pole, DELPHI has determined the centre-of-mass energy, sqrt{s}, using energy and momentum constraint methods. The results are expressed as deviations from the nominal LEP centre-of-mass energy, measured using other techniques. The results are found to be compatible with the LEP Energy Working Group estimates for a combination of the 1997 to 2000 data sets.

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The DELPHI Collaboration, J. Abdallah. 2006-02-07. A Determination of the Centre-of-Mass Energy at LEP2 using Radiative 2-fermion Events. https://doi.org/10.1140/epjc%2Fs2006-02506-x

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