UTAPwiki/セミナー/宇宙物理学セミナー

Special seminar by Ayuki Kamada (UC Riverside)

Title: Resonant Neutrino Self-Interaction in IceCube
Time: 10:30- (note a different time)

Abstract: Recently IceCube experiment has revealed the spectrum of cosmic neutrinos in TeV-PeV range. However, null detection of 400-800 TeV neutrinos disagrees with a power law energy spectrum implied by the others. We interpret this "dip" feature as a hint of neutrino self-interactions. We investigate the possibility that well-motivated U(1)Lmu-Ltau model can explain the feature. We show that future (null-)detection of 400-800 TeV neutrinos can give us invaluable hints about structure of the neutrino sector. We also discuss its implication for CMB/BBN and supernova. Resonant neutrino self-interaction has a big impact on SN cooling.


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Last-modified: 2015-02-17 (火) 08:58:51 (952d)