Abstract
The impact of higher-order final-state photonic corrections on the precise determination of the W-boson mass at the Tevatron and LHC colliders is evaluated. The W-mass shift from a fit to the transverse mass distribution is found to be about 10 MeV in the W → μ ν channel and a few MeV in the W → e ν channel. The calculation, which is implemented in the Monte Carlo event generator HORACE for data analysis, can contribute to reduce the uncertainty associated to the W mass measurement at present and future hadron collider experiments.
PACS: 12.15.Lk Electroweak radiative corrections – 13.40.K Electromagnetic corrections to strong- and weak-interaction processes
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Calame, C.C., Montagna, G., Nicrosini, O. et al. Multi-photon corrections to W boson mass determination at hadron colliders. Eur Phys J C 33 (Suppl 1), s665–s667 (2004). https://doi.org/10.1140/epjcd/s2003-03-712-1
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DOI: https://doi.org/10.1140/epjcd/s2003-03-712-1