Search for Neutral MSSM Higgs Bosons at LEP

Details Search for Neutral MSSM Higgs Bosons at LEP Search for Neutral MSSM Higgs Bosons at LEP

2006-02-23

arxiv.org/abs/hep-ex/0602042v1

Eur.Phys.J.C47:547-587,2006

Physics

High Energy Physics

High Energy Physics - Experiment

81 pages, 22 figures, Submitted to Euro. Phys. J. C

Scientific paper

10.1140/epjc/s2006-02569-7

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. The combined LEP data show no significant excess of events which would indicate the production of Higgs bosons. The search results are used to set upper bounds on the cross-sections of various Higgs-like event topologies. The results are interpreted within the MSSM in a number of "benchmark" models, including CP-conserving and CP-violating scenarios. These interpretations lead in all cases to large exclusions in the MSSM parameter space. Absolute limits are set on the parameter tanb and, in some scenarios, on the masses of neutral Higgs bosons.

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