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TH Cosmo Coffee

Looking for the origin of astrophysical neutrinos

by Dmitri Semikoz (APC, Paris)

Europe/Zurich
4-2-011 - TH common room (CERN)

4-2-011 - TH common room

CERN

40
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Description
IceCube neutrino telescope discovered astrophysical neutrinos in the energy range from 10 TeV to 10 PeV. This discovery challenged existed theoretical models due to unexpected observation of soft 1/E^{2.5} neutrino spectrum. Together with limits from diffuse gamma-ray flux measured with Fermi LAT this excluded most of existed theoretical predictions. In my talk I'll discuss significance of the galactic component observation in the 4 years IceCube data. Also I'll review theoretical models, which can explain observed data both with Galactic and extra-galactic sources of neutrinos.
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