Measurement of the mass and the width of the W boson at LEP
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 1 of data collected at centre-of-mass energies between 161 and 209 GeV. Combining semi-leptonic and fully-hadronic final states, the mass and the width of the W boson are determined to be <Equation ID="Eq1"> begin{array}{*{20}c} {m_{{text{W}}} = 80.270}{ ± 0.046}{ ± 0.031{text{GeV}}}{{text{and}}} \ {Γ _{{text{W}}} = 2.18}{ ± 0.11}{ ± 0.09{text{GeV}}}{} \ </Equation> where the first uncertainty is statistical and the second systematic.
- Publication:
-
European Physical Journal C
- Pub Date:
- March 2006
- DOI:
- 10.1140/epjc/s2005-02459-6
- arXiv:
- arXiv:hep-ex/0511049
- Bibcode:
- 2006EPJC...45..569L
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- Eur.Phys.J. C45 (2006) 569-587