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Search for the Standard Model Higgs boson at LEP.

ALEPH Collaboration, . and Heister, A. and Bouhova-Thacker, E. V. and Finch, A. J. and Hughes, G. and Jones, Roger and Smizanska, M. and Clarke, D. P. and Ellis, G. , et al. and DELPHI Collaboration, . and Abdallah, J. and Sopczak, A. and Borissov, G. , et al. and L3 Collaboration, . and OPAL Collaboration, . and Abbiendi, G. and Kartvelishvili, V. , et al. and LEP Working Group, . (2003) Search for the Standard Model Higgs boson at LEP. Physics Letters B, 565. pp. 61-75. ISSN 0370-2693

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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/c2 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.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 10518
Deposited By: Users 810 not found.
Deposited On: 16 Jul 2008 15:34
Refereed?: Yes
Published?: Published
Last Modified: 17 Nov 2017 09:55
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/10518

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