F. Abe et al., MEASUREMENT OF JET MULTIPLICITY IN W-EVENTS PRODUCED IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV, Physical review letters, 70(26), 1993, pp. 4042-4050
The W production cross section times the branching ratio for W-->lnu,
l=e,mu decays has been measured as a function of the associated jet mu
ltiplicity. The data have been recorded at the Collider Detector at Fe
rmilab during the 1988-89 run. A recent leading order QCD calculation
agrees well with the data up to a jet multiplicity of 4.