ν-Two Higgs doublet model and its collider phenomenology

Naoyuki Haba, Koji Tsumura

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Smallness of neutrino masses can be explained by introducing a tiny vacuum expectation value of an extra-Higgs doublet which couples to right-handed neutrinos (NR). This situation is naturally realized in ν-Two Higgs Doublet Model (νTHDM), where a TeV-scale seesaw mechanism can work well. We investigate observable phenomenology of νTHDM at LHC and ILC experiments. Charged Higgs boson (H±) in νTHDM is almost originated from the extra-Higgs doublet and its coupling strength to neutrinos are not small. Then this model induces rich phenomenology at the LHC, for example, when m H± > MN, observable charged tracks can be induced from long lived charged Higgs. On the other hand, when mH ± < MN, right-handed neutrinos can be long-lived, and secondary vertices may be tagged at the LHC. The νTHDM also predicts observable lepton number violating process at the ILC.

Original languageEnglish
Article number68
JournalJournal of High Energy Physics
Volume2011
Issue number6
DOIs
Publication statusPublished - Jan 1 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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