TL;DR
This paper reports a search for the Higgs boson decaying into WW pairs in proton-antiproton collisions at 1.96 TeV, using neural networks to enhance sensitivity, but finds no evidence of the Higgs and sets upper limits on its production.
Contribution
First search for H -> WW -> ll in ppbar collisions at Tevatron using neural networks to improve detection sensitivity.
Findings
No excess observed above background.
Limits set on sigma x BR for Higgs masses 115-200 GeV.
Abstract
A search for the Higgs boson in H -> WW -> ll(l = e, mu) decays in ppbar collisions at a center-of-mass energy of sqrt{s}=1.96 TeV is presented. The data have been collected by the Run II DO detector between April 2002 and June 2008, corresponding to 3 fb^{-1} of integrated luminosity. In order to maximize the sensitivity the multivariate technique of Artificial Neural Networks is used. No excess above the Standard Model background is observed and limits on the production cross section times branching ratio sigma x BR(H -> WW -> ll) for m_H=115 - 200 GeV using a Higgs mass grid of 5 GeV have been set.
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Taxonomy
TopicsComputational Physics and Python Applications · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research