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T: Teilchenphysik

T 309: Higgs II

T 309.2: Talk

Tuesday, March 28, 2006, 16:55–17:10, HG2-HS8

Searches for Higgs Bosons in H → WW^* → l l ν ν (ll = ee, eµ) decays in p p collisions at √s=1.96 TeV. — •Maxim Titov, Volker Buescher, and Karl Jakobs — Freiburg University

The D0 experiment at Tevatron p p collider has collected data corresponding to an integrated luminosity of 1 fb⁻¹. These data are used to search for Higgs bosons decaying into WW^* final states. To achive a good signal-to-background ratio leptonic decays of the W’s are selected, leading to final states with two leptons and missing transverse momentum. The H → WW^* → l l ν ν  decay mode provides the largest sensitivity for the SM Higgs boson searches at the Tevatron in the mass range around M_H∼ 160 GeV/c². If combined with WH and ZH associated production, this decay mode increases the sensitivity for the Higgs boson searches in the low mass region M_H ∼120 GeV/c². In this talk the results of the analysis of the full data set collected from April 2002 to December 2005 with the Run II D0 Detector, corresponding to an integrated luminosity of 1 fb⁻¹, is presented.