Determination of the LEP Beam Energy using Radiative Fermion-pair Events
High Energy Physics - Experiment
2008-11-26 v1
Abstract
We present a determination of the LEP beam energy using "radiative return" fermion-pair events recorded at centre-of-mass energies from 183 GeV to 209 GeV. We find no evidence of a disagreement between the OPAL data and the LEP Energy Workings Group's standard calibration. Including the energy- averaged 11 MeV uncertainty in the standard determination, the beam energy we obtain from the OPAL data is higher than that obtained from the LEP calibration by 0+-34(stat.)+-27(syst.)MeV
Cite
@article{arxiv.hep-ex/0408130,
title = {Determination of the LEP Beam Energy using Radiative Fermion-pair Events},
author = {The OPAL collaboration and G. Abbiendi},
journal= {arXiv preprint arXiv:hep-ex/0408130},
year = {2008}
}
Comments
24 pages, 5 figures, Submitted to Phys. Letts. B