Constraints on doubly charged Higgs interactions at linear collider

Abstract

Production of a single doubly charged Higgs boson $Delt{a}^{--}$ in polarized $e^{+}{e}^{-}$ and $e^{+}\gamma$ collision modes of the linear collider have been investigated. The mass range of $Delt{a}^{--}$ to be probed extends up to the collision energy. The diagonal lepton number violating Yukawa coupling $h_{ee}$ will be tested at least three orders of magnitude more strictly than in present experiments.

Comments: LATEX, 15 pages, 7 ps figures included