Associated single photons and doubly-charged scalars at linear $e^{-} e^{-}$ colliders
Biswarup Mukhopadhyaya Santosh Kumar Rai
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Doubly-charged scalars, predicted in many models having exotic Higgs representations, can in general have lepton-number violating (LFV) couplings. We show that by using an associated monoenergetic final state photon seen at a future linear $e^{-} e^{-}$ collider, we can have a clear and distinct signature for a doubly-charged resonance. The strength of the $\Delta L = 2$ coupling can also be probed quite effectively as a function of the recoil mass of the doubly-charged scalar.
Biswarup Mukhopadhyaya1 Santosh Kumar Rai1
Volume 97, 2023
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