期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 6, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP06(2011)068
关键词
Beyond Standard Model; Higgs Physics; Neutrino Physics
资金
- Ministry of Education and Science [20540272, 20039006, 20025004]
- Grants-in-Aid for Scientific Research [22011005, 20244028, 20540272, 20039006, 23340070] Funding Source: KAKEN
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 (N-R). This situation is naturally realized in nu-Two Higgs Doublet Model (nu THDM), where a TeV-scale seesaw mechanism can work well. We investigate observable phenomenology of nu THDM at LHC and ILC experiments. Charged Higgs boson (H-+/-) in nu THDM 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 +/-) < M-N, observable charged tracks can be induced from long lived charged Higgs. On the other hand, when m(H +/-) > M-N, right-handed neutrinos can be long-lived, and secondary vertices may be tagged at the LHC. The nu THDM also predicts observable lepton number violating process at the ILC.
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