Speaker
Description
Diffuse galactic neutrinos are produced in interactions of hadronic cosmic rays with the interstellar medium in the Milky Way. This flux is a practically guaranteed signal for high-energy neutrino observatories. It has not been identified yet, but recent searches indicate that a discovery might be in reach within the near future. Because of the large background from atmospheric neutrinos, these searches require detailed modelling of the diffuse galactic flux. These models also relate the observations to the propagation and injection properties of galactic cosmic rays at PeV energies.
In this talk, after a brief recap of the existing models, an approach to construct updated models for the galactic diffuse neutrino flux tuned to the latest direct cosmic ray data is presented and the systematic dependencies of these models are discussed.
