Measurement of the W Mass at LEP2 C.J. Parkes a On behalf of the Lep Collaborations
نویسنده
چکیده
The mass of the W boson has been measured by the Lep collaborations from the data recorded during the Lep2 programme at e + e − centre of mass energies from 161 to 209 GeV, giving the result : MW = 80.450 ± 0.039 GeV/c 2. This paper discusses the measurements of the W Mass from direct reconstruction of the invariant mass of the W + W − decay products, particular emphasis is placed on the evaluation of systematic errors. Results on the direct measurement of the W width are also presented.
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