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arXiv · hep-ph/9606311

Doubly charged Higgs at LHC

K. Huitu·J. Maalampi·A. Pietila·M. Raidal
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Abstract

We have investigated production of doubly charged Higgs particles $Δ_{L,R}^{++}$ via WW fusion process in proton-proton collisions at LHC energies in the framework of the left-right symmetric model. The production cross section of the right-triplet Higgs is for representative values of model parameters at femtobarn level. The discovery reach depends on the mass of the right-handed gauge boson W_R. At best $Δ_R^{++}$ mass up to 2.4 TeV are achievable within one year run. For $Δ^{++}_L$ the corresponding limit is 1.75 TeV which depends on the value of the left-triplet vev v_L. Comparison with Drell-Yan pair production processes shows that studies of the WW fusion processes extend the discovery reach of LHC roughly by a factor of two. The main experimental signal of a produced Higgs would be a hard same-sign lepton pair. There will be no substantial background due to the Standard Model (SM) interactions, since in the SM a same-sign lepton pair will always be associated with missing energy, i.e. neutrinos, due to lepton number conservation.

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K. Huitu, J. Maalampi, A. Pietila, M. Raidal. 1997-01-06. Doubly charged Higgs at LHC. https://doi.org/10.1016/s0550-3213(97)87466-4

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