W mass measurement at LEP

Details W mass measurement at LEP W mass measurement at LEP

1999-06-24

arxiv.org/abs/hep-ex/9906036v1

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 2 figures; uses Moriond.sty; to appear in the proceedings of the XXXIVth Recontres de Moriond QCD, March 1999

Scientific paper

In 1998, the four experiments of LEP, i.e. ALEPH, DELPHI, L3 and OPAL, collected data of about 175 /pb per experiment at the center-of-mass energy of 189 GeV. Using these data, the mass of W boson was directly measured by reconstructing the decay products of two W bosons from the e+e- collisions. The W mass measurement was combined personally with the results obtained from data at 161, 172, and 183 GeV. This yielded the private LEP2 average of Mw = 80.350 +/- 0.056 GeV.

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