Abstract

In light of the recent MILAGRO collaborations publication of the detection of diffuse multi‐TeV emission from a region close to the inner Galaxy, we reinvestigate the diffuse neutrino flux calculation from this region. Conventional determinations of the diffuse neutrino flux following cosmic ray propagation through the Galaxy, tuned to reproduce the locally observed cosmic ray spectrum, give rise to diffuse fluxes that are significantly below the detected diffuse flux. Assuming that this excess is hadronic in origin and is emitted by the entire inner Galactic region, we determine the diffuse neutrino flux expected from a region of the Galactic disk with coordinates −40°<l<40°. The calculated diffuse flux of neutrinos, for this hadronic only scenario, is found to be detectable by a km3—scale detector located in the northern hemisphere.

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