We present a search for the standard model Higgs boson
produced in association with a Z boson, using up to 7.9/fb of integrated
luminosity collected with the CDF II detector. We utilize several novel
techniques, including multivariate lepton selection, multivariate
trigger parametrization, and a multi-stage signal discriminant
consisting of specialized functions trained to distinguish individual
backgrounds. Having observed no signal, we proceed to set limits on the
ZH production cross section. For a Higgs boson with mass 115 GeV/c2, we
expect (observe) a limit of 3.9 (4.8) times the standard model predicted
value, at the 95% credibility limit. The new analysis techniques and
larger dataset have improved the expected limit by ~40% relative to
previous searches using this channel.
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Updated: Friday, 2013 February 01 11:04:06 CST automatically from input from Barbara Hehner