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research article
Search for anomalous couplings in the Higgs sector at LEP
Anomalous couplings of the Higgs boson are searched for through the processes e+e-→Hγ, e+e -→e+e-H and e+e -→HZ. The mass range 70 GeV<mH<190 GeV is explored using 602 pb-1 of integrated luminosity collected with the L3 detector at LEP at centre-of-mass energies s=189-209 GeV. The Higgs decay channels H→ff̄, H→γγ, H→Zγ and H→WW(*) are considered and no evidence is found for anomalous Higgs production or decay. Limits on the anomalous couplings d, d B, Δg1 Z, Δκγ and ξ2 are derived as well as limits on the H→γγ and H→Zγ decay rates. © 2004 Published by Elsevier B.V.
Type
research article
Scopus ID
2-s2.0-2442476493
Authors
Achard, P.
•
Adriani, O.
•
Aguilar-Benitez, M.
•
Alcaraz, J.
•
Alemanni, G.
•
Allaby, J.
•
Aloisio, A.
•
Alviggi, M.G.
•
Anderhub, H.
•
Andreev, V.P.
Publication date
2004
Volume
589
Issue
3-4
Start page
89
End page
102
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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