Search for doubly charged Higgs scalars inZdecay

Search for doubly charged Higgs bosons with lepton-flavor-violating decays involving tau leptons.

We search for pair production of doubly charged Higgs particles (H+/- +/-) followed by decays into electron-tau (etau) and muon-tau (mutau) pairs using data (350 pb(-1) collected from [over]pp collisions at sqrt[s]=1.96 TeV by the CDF II experiment. We search separately for cases where three or four final-state leptons are detected, and combine results for exclusive decays to left-handed etau (...

Searching a Doubly Charged Higgs Boson at Hera

The production of a single exotic Higgs particle is studied at Hera. Within the present limits on the Yukawa couplings this doubly charged particle, suggested by the left-right symmetric models, can be observed at Hera up to values of its mass of about 150 GeV. PACS numbers:

Single 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...

Limits on doubly charged Higgs bosons and lepton-flavor violation.

Signatures of Doubly Charged Higgs Bosons in eγ Collisions

We study the discovery potential for doubly charged Higgs bosons, ∆, in the process eγ → eμμ for centre of mass energies appropriate to high energy ee linear colliders and the CLIC proposal. For M∆ < √ seγ discovery is likely for even relatively small values of the Yukawa coupling to leptons. However, even far above threshold, evidence for the ∆ can be seen due to contributions from virtual int...