Search for doubly-charged Higgs bosons at LEP
نویسندگان
چکیده
منابع مشابه
Searches for Charged Higgs Bosons at Lep
The four LEP experiments Aleph, Delphi, L3 and Opal updated their searches for pair production of charged Higgs bosons using more than 210 pb luminosity collected per experiment in the year 2000. Combining it with previously collected data, a significant deviation from background (equivalent to 4.4 σ) is found by the L3 collaboration for low values of the branching ratio H → τν around masses of...
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The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments have been statistically combined. The results are interpreted within the 2HDM for Type I and Type II benchmark scenarios. No statistically significant excess has been observed when compared to the Sta...
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The four LEP experiments (ALEPH, DELPHI, L3 and OPAL) collected around 2.5 fb data in total at energies √ s ≥ 189 GeV of which 536 pb was registered at √ s = 206−209 GeV in 2000. The data are used to search for Higgs bosons in a variety of models. In the Standard Model (SM) the electroweak (EW) symmetry is broken via the Higgs mechanism generating the masses of elementary particles. This implie...
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This work describes the results of the searches for a Higgs boson decaying into gauge bosons carried out by the four LEP collaborations: ALEPH, DELPHI, L3 and OPAL. A lower bound of 109.7 GeV is set at 95% confidence level on the mass of a fermiophobic Higgs boson decaying into photons. This mass limit can be extended by considering the Higgs decay mode into weak bosons. Such a combination has ...
متن کاملSingle production of doubly charged Higgs bosons at hadron colliders
We reconsider the single production of the doubly charged Higgs bosons ∆ R and ∆ ++ L at the LHC and TEVATRON in the framework of the left-right symmetric model and the Higgs triplet model. We show that in the left-right symmetric model the production of ∆ R by Drell-Yan process via WR exchange may give the dominant contribution. The same channel for the production of ∆ L in the Higgs triplet m...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2003
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2003.09.082