6533b7d5fe1ef96bd1264db6
RESEARCH PRODUCT
Search for neutral Higgs bosons in e(+)e(-) collisions at root s=183 GeV
Delphi CollaborationReyes Alemany FernándezSusana Cabrera UrbánMaría Victoria Castillo GiménezEduardo Cortina GilAntonio Ferrer SoriaJuan A. Fuster VerdúCarmen García GarcíaInés Gil BotellaJuan José Hernández ReyEmilio Higón RodríguezFernando Martínez VidalSergio Navas ConchaJosé Salt Cairolssubject
Condensed Matter::Quantum GasesHigh Energy Physics::PhenomenologyHigh Energy Physics::ExperimentFísica nuclearPartícules (Física nuclear)description
Neutral Higgs bosons were searched for in the data collected by DELPHI at a centre-of-mass energy of 183 GeV, corresponding to an integrated luminosity of 54 pb TeX . The production of the lightest neutral Higgs boson with either an on-shell Z boson or a neutral pseudo-scalar Higgs boson was analysed. Lower limits at the 95% confidence level were obtained on the Higgs boson masses. The limits are 85.7 GeV/ TeX for the Standard Model Higgs boson and 74.4 GeV/ TeX for the scalar and 75.3 GeV/ TeX for the pseudo-scalar Higgs bosons as predicted by the minimal super-symmetric extension of the Standard Model with commonly used assumptions on the model parameters, plus the assumption that the mass of the pseudo-scalar boson is greater than 20 GeV/ TeX . These results significantly improve the limits reached with previous data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-01-01 |