Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-07-11
Physics
High Energy Physics
High Energy Physics - Experiment
27 pages, 13 figures. Figures supplied as .eps files. This note summarizes the LEP combined SM Higgs search results to be pres
Scientific paper
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have collected 2465 pb-1 of e+e- collision data at energies between 189 and 209 GeV, of which 542 pb-1 were collected above 206 GeV. Searches for the Standard Model Higgs boson have been performed by each of the LEP collaborations. Their data have been combined and examined for their consistency with the Standard Model background and various Standard Model Higgs boson mass hypotheses. A lower bound of 114.1 GeV has been obtained at the 95% confidence level for the mass of the Higgs boson. The likelihood analysis shows a preference for a Higgs boson with a mass of 115.6 GeV. At this mass, the probability for the background to generate the observed effect is 3.4%.
ALEPH Collaboration
DELPHI Collaboration
L3 Collaboration
OPAL Collaboration
Working Group the LEP Higgs
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