Direct Measurement of the W Boson Width in ppbar Collisions at roots = 1.8 TeV

Details Direct Measurement of the W Boson Width in ppbar Collisions at roots = 1.8 TeV Direct Measurement of the W Boson Width in ppbar Collisions at roots = 1.8 TeV

2000-04-15

arxiv.org/abs/hep-ex/0004017v1

Phys.Rev.Lett.85:3347-3352,2000

Physics

High Energy Physics

High Energy Physics - Experiment

RevTex, 8 pages, 1 figure, submitted to PRL

Scientific paper

10.1103/PhysRevLett.85.3347

This Letter describes a direct measurement of the $W$ boson total decay width, $\gw$, using the Collider Detector at Fermilab. The measurement uses an integrated luminosity of $90\invpb$, collected during the 1994--1995 run of the Fermilab Tevatron $p\pbar$ collider. The width is determined by normalizing predicted signal and background distributions to 49844 $\wenu$ candidates and 21806 $\wmunu$ candidates in the transverse-mass region $M_T<200\gev$ and then fitting the predicted shape to the 438 electron events and 196 muon events in the high-$M_T$ region, $100

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