Neutrino yield from Galactic cosmic rays

Understand

We calculate the neutrino yield from collisions of cosmic ray (CR) nuclei on gas using the event generator QGSJET-II.

• We present first the general characteristics and numerical results for the neutrino yield assuming power-law fluxes for the primary CR nuclei.
• Then we use three parameterisations for the Galactic CR flux to derive the neutrino yield for energies around and above the knee.
• The shape and the normalization of the resulting neutrino flux above $\sim 10^{14}$ eV depends on the composition of the Galactic CR flux employed, but is generally dominated by its proton component.