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Search for the Standard Model Higgs boson at LEP
Wilson, Graham Wallace ALEPH Collaboration DELPHI Collaboration L3 Collaboration OPAL Collaboration The LEP Working Group for Higgs Boson Searches
Wilson, Graham Wallace
ALEPH Collaboration
DELPHI Collaboration
L3 Collaboration
OPAL Collaboration
The LEP Working Group for Higgs Boson Searches
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Abstract
The four LEP Collaborations, ALEPH, DELPHI, L3 and OPAL, have collected a total of 2461 pb^(−1) of e^+e^− collision data at centre-of-mass energies between 189 and 209 GeV. The data are used to search for the Standard Model Higgs boson. The search results of the four Collaborations are combined and examined in a likelihood test for their consistency with two hypotheses: the background hypothesis and the signal plus background hypothesis. The corresponding confidences have been computed as functions of the hypothetical Higgs boson mass. A lower bound of 114.4 GeV/c^2 is established, at the 95% confidence level, on the mass of the Standard Model Higgs boson. The LEP data are also used to set upper bounds on the HZZ coupling for various assumptions concerning the decay of the Higgs boson.
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2003-07-17
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Elsevier
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ALEPH Collaboration, DELPHI Collaboration, L3 Collaboration, OPAL Collaboration, The LEP Working Group for Higgs Boson Searches, Search for the Standard Model Higgs boson at LEP, Physics Letters B, Volume 565, 17 July 2003, Pages 61-75, ISSN 0370-2693, http://dx.doi.org/10.1016/S0370-2693(03)00614-2.