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Title

Search for a Higgs boson decaying into two photons in e+e interactions at √s=189 GeV

CollaborationWith : Achard, Pablo / Ambrosi, Giovanni / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Pohl, Martin
Published in Physics Letters. B. 2000, vol. 489, no. 1-2, p. 115-124
Abstract A search is performed for a Higgs boson produced in association with a Z boson and decaying into two photons, using the L3 data collected at LEP at a centre-of-mass energy of 189 GeV. All decay modes of the Z are considered. No signal is observed and limits on the branching fraction of the Higgs boson decay into two photons as a function of the Higgs mass are derived assuming a Standard Model production rate. A lower limit on the mass of a fermiophobic Higgs is set at 94.9 GeV at 95% confidence level.
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L3 COLLABORATION. Search for a Higgs boson decaying into two photons in e+e interactions at √s=189 GeV. In: Physics Letters. B, 2000, vol. 489, n° 1-2, p. 115-124. https://archive-ouverte.unige.ch/unige:47347

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Deposited on : 2015-02-27

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