https://doi.org/10.1140/epjcd/s2003-03-712-1
PS07 Tests of the Standard Model
Multi-photon corrections to W boson mass determination at hadron colliders
1
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, and Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, via A. Bassi 6, I-27100, Pavia, Italy
2
Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, and Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, via A. Bassi 6, I-27100, Pavia, Italy
3
Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, via A. Bassi 6, I-27100, Pavia, Italy
Received:
15
October
2003
Accepted:
24
October
2003
Published online:
6
November
2003
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
© Società Italiana di Fisica, Springer-Verlag, 2004
