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.

Measurement of the mass and the width of the W boson at LEP

CAVALLO, Nicola;
2006

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 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}}}{} \ where the first uncertainty is statistical and the second systematic.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11563/8302
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