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Search for the Higgs boson in events with isolated photons at LEP-2

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Abreu, P. [--] Cortina Gil, Eduardo [UCL] DELPHI Collaboration [--]

A search for the Higgs boson in final states with one, two or three isolated photons has been performed based on data taken at LEP 2 by the DELPHI detector. The data analysed correspond to a total integrated luminosity of 67.5 pb−1 at centre-of-mass energies of 161 GeV (9.7 pb−1), 172 GeV (10.1 pb−1) and 183 GeV (47.7 pb−1). No evidence for the processes e+e−→Hγ with View the MathML source or γγ and View the MathML source with H→γγ was observed. Model-independent limits on View the MathML source, View the MathML source and σ(e+e−→Hγ)×BR(H→γγ) are set, as well as model-dependent limits on Higgs boson anomalous couplings to vector bosons.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 1999
Language Anglais
Journal information "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics" - Vol. 458, no.2-3, p. 431–446 (1999)
Peer reviewed yes
Publisher Elsevier BV * North-Holland ((Netherlands) Amsterdam)
issn 0370-2693
e-issn 1873-2445
Publication status Publié
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
Links
Bibliographic reference Abreu, P. ; Cortina Gil, Eduardo ; DELPHI Collaboration ; et. al. Search for the Higgs boson in events with isolated photons at LEP-2 . In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 458, no.2-3, p. 431–446 (1999)
Permanent URL http://hdl.handle.net/2078.1/123040