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Direct Measurement of the W Boson Width in pp Collisions at √s=1.8TeV

CollaborationWith : Clark, Allan Geoffrey / Kambara, Hisanori / Speer, Thomas / Strumia Michelini, Federica / Wu, Xin
Published in Physical Review Letters. 2000, vol. 85, no. 16, p. 3347--3352
Abstract This Letter describes a direct measurement of the W boson total decay width, ΓW, using the Collider Detector at Fermilab. The measurement uses an integrated luminosity of 90pb−1, collected during the 1994–1995 run of the Fermilab Tevatron pp¯ collider. The width is determined by normalizing predicted signal and background distributions to 49 844 W→eν candidates and 21 806 W→μν candidates in the transverse-mass region MT<200 GeV and then fitting the predicted shape to the 438 electron events and 196 muon events in the high- MT region, 100<MT<200 GeV. The result is ΓW=2.04±0.11(stat)±0.09(syst)GeV.
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CDF COLLABORATION. Direct Measurement of the W Boson Width in pp Collisions at √s=1.8TeV. In: Physical Review Letters, 2000, vol. 85, n° 16, p. 3347--3352. doi: 10.1103/PhysRevLett.85.3347 https://archive-ouverte.unige.ch/unige:37898

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Deposited on : 2014-06-17

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