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A determination of the centre-of-mass energy at LEP2 using radiative two-fermions events

par Abdallah, Jalal Mohamad;Bertrand, Daniel
Référence European Physical Journal C. Particles and Fields, 46, page (295-305)
Publication Publié, 2006

Article révisé par les pairs

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Résumé :

Using e+e- → μ+μ -(γ) and e+e- → qq̄(γ) events radiative to the Z pole, DELPHI has determined the centre-of-mass energy, √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.