A search for ZH --> μμb¯b production at the Tevatron
L. S. Ancu · Radboud Repository (Radboud University) · 2010
The Standard Model of particle physics describes with a very good accuracy all interactions of the, so far, known elementary particles. This thesis presents a search for the Higgs particle, which was not yet put into evidence. The data analyzed consists of 3.1 fb-1 of proton anti-proton collisions at the Tevatron at a center of mass energy of 1.96 TeV recorded by the D0 detector. The search focused on the Higgs associated production with a Z boson. The final signature that was searched was the one in which the Z boson decays into two muons and the Higgs boson decays into two b-quarks. In order to improve the power of the analysis boosted decision trees are used to increase the separation between signal and background. Not observing an excess over the expected background, limits on the Higgs boson production cross-section at the Tevatron are set.