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Sensitivity to Doubly Charged Higgs bosons in the Process $e^- γ to e^+ μ^- μ^-$

S. Godfrey·P. Kalyniak·N. Romanenko
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Abstract

We study the sensitivity to doubly charged Higgs bosons, $Δ^{--}$, in the process $e^-γ\to e^+ μ^-μ^-$ for centre of mass energies appropriate to future high energy $e^+e^-$ collider proposals. For $M_Δ< \sqrt{s_{eγ}}$ discovery is likely for even relatively small values of the Yukawa coupling to leptons. However, even far above threshold, evidence for the $Δ$ can be seen due to contributions from virtual intermediate $Δ$'s although, in this case, $μ^-μ^-$ final states can only be produced in sufficient numbers for discovery for relatively large values of the Yukawa couplings.

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S. Godfrey, P. Kalyniak, N. Romanenko. 2001-12-10. Sensitivity to Doubly Charged Higgs bosons in the Process $e^- γ to e^+ μ^- μ^-$. https://arxiv.org/abs/hep-ph/0111191

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