Search for anomalous couplings in the Higgs sector at LEP

L3 Collaboration

doi:10.1016/j.physletb.2004.03.048

Scientific article

English

Search for anomalous couplings in the Higgs sector at LEP

Contributors

L3 Collaboration

Collaborators

Achard, Pablo; Bourquin, Maurice; Braccini, Saverio; Chamizo Llatas, Maria; Deglon, Patrick; Delmeire, Evelyne; Echenard, Bertrand; Extermann, Pierre; Field, John; Kienzle, Maria-Novella; Malgeri, Luca; Natale, Sonia; Pohl, Martin; Straessner, Arno

Published in

Physics letters. B, vol. 589, no. 3-4, p. 89-102

Publication date

2004

Abstract

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<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→γγ, H→Zγ and are considered and no evidence is found for anomalous Higgs production or decay. Limits on the anomalous couplings d, dB, Δg1Z, Δκγ and ξ2 are derived as well as limits on the H→γγ and H→Zγ decay rates.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

L3 Collaboration. Search for anomalous couplings in the Higgs sector at LEP. In: Physics letters. B, 2004, vol. 589, n° 3-4, p. 89–102. doi: 10.1016/j.physletb.2004.03.048

Article (Published version)

Identifiers

PID : unige:42269
DOI : 10.1016/j.physletb.2004.03.048

Additional URL for this publication

http://www.sciencedirect.com/science/article/pii/S0370269304005040

Journal ISSN

0370-2693

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209downloads

Creation

28/11/2014 10:01:00

First validation

28/11/2014 10:01:00

Update

13/10/2025 22:12:07

Status update

14/03/2023 22:18:36

Last indexation

10/11/2026 17:12:27

Search for anomalous couplings in the Higgs sector at LEP

Contributors

Collaborators

Published in

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

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Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation