Search for the Higgs Boson Produced in Association with Z -> l(+) l(-) in p (p)over-bar Collisions at root s=1.96 TeV

We present a search for the Higgs boson in the process q (q) over bar -> ZH -> l(+) l(-) b (b) over bar. The analysis uses an integrated luminosity of 1 fb(-1) of p (p) over bar collisions produced at root s = 1.96 TeV and accumulated by the upgraded Collider Detector at Fermilab (CDF II). We employ artificial neural networks both to correct jets mismeasured in the calorimeter and to distinguish the signal kinematic distributions from those of the background. We see no evidence for Higgs boson production, and set 95% C.L. upper limits on sigma B-ZH(H -> b (b) over bar), ranging from 1.5 to 1.2 pb for a Higgs boson mass (m(H)) of 110 to 150 GeV/c(2).