Determination of the LEP center-of-mass energy from Zgamma events

ALEPH Collaboration

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arXiv · hep-ex/9810047

Determination of the LEP center-of-mass energy from Zgamma events

ALEPH Collaboration

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Abstract

Radiative returns to the Z resonance (Zgamma events) provide a method to determine the centre-of-mass energy of the high energy e+e- colliders and already at LEP2. The method is applied for the data collected with the ALEPH detector in 1997 at 181-184 GeV, using e+e- -> gammaZ -> hadrons events.

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ALEPH Collaboration. 1998-10-30. Determination of the LEP center-of-mass energy from Zgamma events. https://arxiv.org/abs/hep-ex/9810047

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