Journal article

Search for associated production of massive states decaying into two photons in e( )e(-) annihilations at root s-=88-209 GeV

G Abbiendi, C Ainsley, PF Akesson, G Alexander, J Allison, P Amaral, G Anagnostou, KJ Anderson, S Arcelli, S Asai, D Axen, G Azuelos, I Bailey, E Barberio, RJ Barlow, RJ Batley, P Bechtle, T Behnke, KW Bell, PJ Bell Show all

PHYSICS LETTERS B | ELSEVIER SCIENCE BV | Published : 2002

Abstract

A search is performed for production of short-lived particles in e+e- → XY, with X → γγ and Y → ff̄, for scalar X and scalar or vector Y. Model-independent limits in the range of 25-60 femtobarns are presented on (e+e- → XY) × B(X → γγ) × B(Y → ff̄) for centre-of-mass energies in the range 205-207 GeV. The data from all LEP centre-of-mass energies 88-209 GeV are also interpreted in the context of fermiophobic Higgs boson models, for which a lower mass limit of 105.5 GeV is obtained for a "benchmark" fermiophobic Higgs boson. © 2002 Elsevier Science B.V. All rights reserved.

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