Theory Seminar

Theory Seminar /Takeuchi

Start:2015/06/30 (Tue) 11:00 AM
End:2015/06/30 (Tue) 12:00 PM
Location:kenkyu Honkan 1F Meeting Room1

Speaker:Professor Tatsu Takeuchi (Virginia Tech)
Lecture: Matter Effect from Non-Standard Interactions of the Neutrino
Contact:kei Yamamoto/


Abstract: Neutrino oscillation in matter is sensitive to interactions

between the neutrinos and the matter particles, including

the Standard Model W-exchange interaction and any

Non-Standard Interactions (NSI's) that the neutrinos may have.

In this talk, I will show how the Jacobi method can be

utilized to find analytical expressions for the effective

mixing angles and effective CP violating phase of the

neutrinos in matter, which lead to extremely simple and

compact expressions for the oscillation probabilities.

All matter effects can be absorbed into the "running" of

the effective parameters. It will be shown that the SM

interactions cause theta12 and theta13 to run, while NSI's

involving the mu and tau neutrinos cause theta23 and delta

to run. By looking at the "running" of the effective

parameters, it is possible to find the best conditions

under which the NSI effects will be manifest.

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