Date and Time: Friday, 31 May 2019, at 3:00 PM

Venue: Conference Hall (bld. 3), Dzhelepov Laboratory of Nuclear Problems

Seminar topic: “Multi-messenger signatures of high energy neutrino sources”

Speaker: Dmitri Semikoz (Research Director, CNRS, Paris)

Abstract:

Astrophysical neutrinos were discovered by the IceCube experiment in 2013. More than 100 of such neutrinos was detected by IceCube in last years in several detection channels including all flavours of electron, muon and tau neutrinos. Fast construction of the GVD detector in lake Baikal gives hope to make the first detection of astrophysical neutrinos in the North hemisphere already 2019-2020.
In this talk, I’ll review theoretical models which attempt to describe neutrino data. I’ll argue that only combined analysis of neutrino, gamma-ray and cosmic ray data can allow studying the origin of astrophysical neutrinos. Finally, I’ll show that present data can be described with two components, which have galactic and extragalactic origin and present several models for each of those components.