Measurement of the Mass and the Width of the W Boson at LEP

Preprint

23 November 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0511049

Abstract

The mass and the total decay width of the W boson are measured with the L3 detector at the LEP e+e- collider using W-boson pairs produced in 0.7/fb of data collected at centre-of-mass energies between 161 and 209GeV. Combining semi-leptonic and fully-hadronic final states, the mass and the width of the W boson are determined to be mW = 80.270 +/- 0.046 +/- 0.031 GeV and GW = 2.18 +/- 0.11 +/- 0.09 GeV, where the first uncertainty is statistical and the second systematic.

Keywords

PAIRS PRODUCED
STATISTICAL
TOTAL DECAY
UNCERTAINTY
WIDTH
BOSON
MASS
GEV
LEP

All Related Versions

Version 1, 2005-11-23, ArXiv
Published version: The European Physical Journal C, 45 (3), 569.

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