TeV-scale seesaw with non-negligible left-right neutrino mixings Yukihiro Mimura (National Taiwan University) Based on arXiv:1110.2252 [hep-ph] Collaboration with N. Haba, T. Horita, and K. Kaneta (Osaka U) 1 Seminar at Academia Sinica (2012.1.13, Friday)
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TeV-scale seesaw with non-negligible left-right neutrino mixings
TeV-scale seesaw with non-negligible left-right neutrino mixings . Yukihiro Mimura (National Taiwan University). Based on arXiv:1110.2252 [hep-ph]. Collaboration with N. Haba , T. Horita , and K. Kaneta (Osaka U). Seminar at Academia Sinica (2012.1.13, Friday). Introduction. - PowerPoint PPT Presentation
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TeV-scale seesaw with non-negligible
left-right neutrino mixings
Yukihiro Mimura (National Taiwan University)
Based on arXiv:1110.2252 [hep-ph]
Collaboration with N. Haba, T. Horita, and K. Kaneta (Osaka U)
1
Seminar at Academia Sinica (2012.1.13, Friday)
Introduction
Neutrinos are massive, but active neutrino masses are tiny, < O(1) eV
The simplest mechanism is type-I seesaw.
“Natural” scale for
3
Q. Is there a chance to “observe” the right-handed neutrino?
Ex.
C.f.
Right-handed neutrino mass can be O(100) GeV,but, …..
4
Left-right neutrino mixing:
Ex.
Negligibly small to create the Majorana neutrino at the collider.
5
Q. Is it possible to make the left-right mixing large enough to detect the existence of the right-handed neutrino?
A. Yes, if generation structure is taken into account.