Search for the single production of doubly-charged Higgs bosons and constraints on their couplings from Bhabha scattering
Abstract: A search for the single production of doubly-charged Higgs bosons is performed using e+e− collision data collected by the OPAL experiment at centre-of-mass energies between 189 GeV and 209 GeV. No evidence for the existence of H±± is observed. Upper limits are derived on hee, the Yukawa coupling of the H±± to like-signed electron pairs. A 95% confidence level upper limit of hee< 0.071 is inferred for M(H±±)<160 GeV assuming that the sum of the branching fractions of the H±± to all lepton flavour combinations is 100%. Additionally, indirect constraints on hee from Bhabha scattering at centre-of-mass energies between 183 GeV and 209 GeV, where the H±± would contribute via t-channel exchange, are derived for M(H±±)<2 TeV. These are the first results both from a single production search and on constraints from Bhabha scattering reported from LEP
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Physics letters / B. - 577, 3-4 (2003) , 93-108, ISSN: 1873-2445
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2022
- Urheber
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Boeriu, Oana
Feld, Lutz
Fleck, Ivor
Herten, Gregor
Lillich, Joachim
Ludwig, Jens
Mohr, Wolfgang
Mutter, Andreas
Runge, Kay
Vannerem, P.
- DOI
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10.1016/j.physletb.2003.10.034
- URN
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urn:nbn:de:bsz:25-freidok-2248214
- Rechteinformation
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Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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25.03.2025, 13:50 MEZ
Datenpartner
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Beteiligte
- Boeriu, Oana
- Feld, Lutz
- Fleck, Ivor
- Herten, Gregor
- Lillich, Joachim
- Ludwig, Jens
- Mohr, Wolfgang
- Mutter, Andreas
- Runge, Kay
- Vannerem, P.
- Universität
Entstanden
- 2022