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Search for gamma gamma decays of a Higgs boson in e+ e- collisions at s**(1/2) up to 209-GeV

ALEPH Collaboration, The and Heister, A. and Bouhova-Thacker, Evelina and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Smizanska, Maria (2002) Search for gamma gamma decays of a Higgs boson in e+ e- collisions at s**(1/2) up to 209-GeV. Physics Letters B, 544 (1-2). pp. 16-24. ISSN 0370-2693

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Abstract

A search for events with a photon pair arising from the decay of a Higgs boson produced in association with a fermion pair, is performed in 893 pb−1 of data recorded by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV. No excess of such events is found over the expected background. An upper limit is derived on the product of the e+e−→HZ cross section and the H→γγ branching fraction as a function of the Higgs boson mass. A fermiophobic Higgs boson produced with the Standard Model cross section is excluded at 95% confidence level for all masses below 105.4 GeV/c2.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63904
Deposited By: ep_importer_pure
Deposited On: 03 May 2013 10:28
Refereed?: Yes
Published?: Published
Last Modified: 18 Nov 2017 12:16
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63904

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