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Abstract
The doubly charged scalar boson (H±±) is introduced in several models of the new physics beyond the standard model. The H±± can have Yukawa interactions with two left-handed charged leptons or two righthanded charged leptons. We study kinematical properties of H±± decay products through tau leptons in order to discriminate the chiral structures of the new Yukawa interaction. The chirality of tau leptons can be measured by the energy distributions of the tau decay products, and thus the chiral structure of the new Yukawa interaction can be traced in the invariant-mass distributions of the H±± decay products [1].
Highlights
The doubly charged scalar boson H−−, which has a twice electrical charge of the electron, exists in several models to generate Majorana neutrino masses
The chirality of tau leptons can be measured by the energy distributions of the tau decay products, and the chiral structure of the new Yukawa interaction can be traced in the invariant-mass distributions of the H±± decay products [1]
We study the consequence of the chiral structure of the Yukawa interaction to the kinematical distribution involving the decay of tau leptons
Summary
The doubly charged scalar boson H−−, which has a twice electrical charge of the electron, exists in several models to generate Majorana neutrino masses. We study kinematical properties of H±± decay products through tau leptons in order to discriminate the chiral structures of the new Yukawa interaction. The chirality of tau leptons can be measured by the energy distributions of the tau decay products, and the chiral structure of the new Yukawa interaction can be traced in the invariant-mass distributions of the H±± decay products [1].
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