Search for Neutral MSSM Higgs Bosons at LEP

By S. Schael, R. Barate, R. Brunelière, I. Bonis, D. Decamp, C. Goy, S. Jézéquel, J. Lees, F. Martin, E. Merle and 74 more. 2006

369 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0f130baa181ea5bf343ec4ae4a8e33c28d81a806

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Citations in the corpus

Singlet Higgs phenomenology and the electroweak phase transition (2007, background): “The inclusion of V T=01 leads to a shift in the minimization conditions6, corresponding to a shift in the dependence of µ2 and b2 on the zero temperature vevs and other parameters: ∆µ2 = 1 v ∂ ∂v V T=01 (2.21) ∆b2 = − 1 x ∂ ∂x V T=01 .”
Higgs Physics at the HL-LHC and HE-LHC (2019, background): “It is interesting to note that the CMS search in the di-photon channel [1000] shows an excess of events at⇠ 96 GeV, in the same mass range where the LEP searches in the bb̄ final state observed a 2 excess [602].”
Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions (2014, background): “which gives an upper bound on the light scalar Higgs boson mass, mh, in terms of the Zboson mass of mh ≤ mZ cos 2β, which is below the excluded value of the LEP experiments [22].”
Search for neutral MSSM Higgs bosons at LEP (2006, background): “The lightest of the neutral Higgs bosons is predicted to have a mass less than about 140GeV/c(2) including radiative corrections [7].”
Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb−1 of pp collisions at s=13$$ \sqrt{s}=13 $$ TeV with the ATLAS detector (2018, background): “This has motivated a variety of searches for a scalar boson (generically called φ) in ττ and bb final states1 at LEP [22], the Tevatron [23–25] and the LHC [26–29].”