Speaker
Prof.
Sergey Troitsky
(Institute for Nuclear Research, Russian Academy of Sciences (RU))
Description
In baseline scenarios, energetic astrophysical neutrinos are produced in decays of charged pions, which in turn originate from proton-proton or proton-gamma collisions. Neutral-pion decays produce an accompanying gamma-ray flux, and observational data on gamma rays and cosmic rays impose serious constraints on scenarios explaining the origin of IceCube high-energy events. I review these constraints, present some promising models and discuss prospects of their testing in the yet-unexplored field of (sub)-PeV gamma-ray astronomy.
Primary author
Prof.
Sergey Troitsky
(Institute for Nuclear Research, Russian Academy of Sciences (RU))
