Probing Lepton-Number Violating Couplings of Doubly Charged Higgs Bosons at an $e^{-}{e}^{-}$ Collider

Abstract

The doubly charged Higgs bosons ${\Delta }^{--}$ that are present in exotic Higgs representations can have lepton-number-violating couplings to $e^{-}{e}^{-}$. We discuss general constraints and phenomenology for the ${\Delta }^{--}$ and demonstrate that extremely small values for the $e^{-}{e}^{-}\to {\Delta }^{--}$ coupling (some 8 orders of magnitude smaller than the current limit) would produce observable signals for ${\Delta }^{--}$ production in direct $s$-channel production at an $e^{-}{e}^{-}$ collider.

Comments: 12 pages, full uuencoded postscript file has been submitted, to appear in the Proceedings of the Santa Cruz Workshop on $e^{-}{e}^{-}$ Physics at the NLC, U.C. Santa Cruz, Sept. 4-5, 1995; full postscript file also available via anonymous ftp at ftp://ucdhep.ucdavis.edu/gunion/ , get emem.ps