Search for the Standard Model Higgs Boson at LEP

By Aleph collaboration, Delphi collaboration, L3 Collaboration, Opal Collaboration, T. Group. 2001

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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%.

Subfields: Artificial Intelligence, Computer Networks and Communications, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/01527b1f8ef9026228a91b5ebd1ba984adda45af

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Citations in the corpus

The Next-to-Minimal Supersymmetric extension of the Standard Model reviewed (2009, methodology): “Here we mention the subsequent decays H → bb̄ and H → τ+τ− [75], H → jj, with j denoting a jet [113, 114], H → γγ [115], H → invisible, that is into LSP neutralinos [116, 117], H → X, that is independent of the decay product X in e+e− → ZX.”
Focus Point Supersymmetry Redux (2011, methodology): “[16] LEP Working Group for Higgs boson searches, ALEPH Collaboration, DELPHI Collaboration, L3 Collaboration, OPAL Collaboration Collaboration, R.”