Speaker
Nele Volmer
(Max-Planck-Institut für Kernphysik)
Description
Using the Glashow resonance candidate event recently identified by IceCube we infer the ultrahigh energy astrophysical neutrino source. The Glashow resonance is a valuable probe to identify the source of astrophysical neutrinos because it distinguishes $\bar{\nu_e}$ from $\nu_e$. With the available experimental information we set a constraint on the $\bar{\nu_e}$ fraction of astrophysical neutrinos. We find that the $\mu$-damped p$\gamma$ source is excluded at about 2$\sigma$ confidence level and that there is a weak preference for the pp source. Next generation experiments will be able to distinguish between ideal pp and p$\gamma$ sources with a high significance assuming a single power-law neutrino spectrum.
Primary authors
Guoyuan Huang
Prof.
Manfred Lindner
(Max-Planck-Institut für Kernphysik)
Nele Volmer
(Max-Planck-Institut für Kernphysik)
Peer reviewing
Paper
Paper files:
