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Diffuse Emission of Galactic High-Energy Neutrinos from a Global Fit of Cosmic Rays

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arxiv 2211.15607 v2 pith:3AFYCISC submitted 2022-11-28 astro-ph.HE astro-ph.GA

Georg Schwefer , Philipp Mertsch , Christopher Wiebusch This is my paper
classification astro-ph.HEastro-ph.GA
keywords cosmicgalactichigh-energymodeldiffusefluxneutrinosrays
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In the standard picture of galactic cosmic rays, a diffuse flux of high-energy gamma-rays and neutrinos is produced from inelastic collisions of cosmic ray nuclei with the interstellar gas. The neutrino flux is a guaranteed signal for high-energy neutrino observatories such as IceCube, but has not been found yet. Experimental searches for this flux constitute an important test of the standard picture of galactic cosmic rays. Both the observation and non-observation would allow important implications for the physics of cosmic ray acceleration and transport. We present CRINGE, a new model of galactic diffuse high-energy gamma-rays and neutrinos, fitted to recent cosmic ray data from AMS-02, DAMPE, IceTop as well as KASCADE. We quantify the uncertainties for the predicted emission from the cosmic ray model, but also from the choice of source distribution, gas maps and cross-sections. We consider the possibility of a contribution from unresolved sources. Our model predictions exhibit significant deviations from older models. Our fiducial model is available at https://doi.org/10.5281/zenodo.7373010 .

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The potential of diffuse Galactic Ridge neutrino measurements to constrain dark matter

    astro-ph.HE 2026-05 unverdicted novelty 6.0 of 10

    ANTARES Galactic Ridge upper limits yield competitive dark-matter annihilation/decay bounds, the first neutrino-based branon constraints, and a negative KM3NeT forecast for the thermal relic cross-section.

  2. Exploring New Propagation Scales With Galactic Neutrinos

    hep-ph 2025-12 conditional novelty 6.0 of 10

    A projected joint IceCube+KM3NeT Galactic-neutrino analysis could constrain quasi-Dirac mass splittings near 10^-14-10^-12 eV^2 and nu3-to-nu1 decay rates above 5e-13 eV^2 at 90% CL.

  3. Dissecting the Diffuse Emission of the Galaxy with the HAWC Observatory

    astro-ph.HE 2025-09 conditional novelty 6.0 of 10

    HAWC's Pass 5 analysis of 8 years of data yields new TeV diffuse galactic emission profiles with tails beyond 3 degrees latitude and a galactic-center excess relative to standard cosmic-ray propagation models.

  4. LHAASO protons versus LHAASO diffuse gamma-rays: a consistency check

    astro-ph.HE 2025-06 conditional novelty 6.0 of 10

    The LHAASO proton spectrum, folded with gas maps and interaction models, predicts a diffuse gamma-ray flux that exceeds LHAASO's measured diffuse gamma-ray flux, especially in the inner Galaxy.

  5. Search for an all-sky and a Galactic Ridge diffuse neutrino emission with the first 2 years of KM3NeT/ARCA data

    astro-ph.HE 2026-08 accept novelty 5.0 of 10

    Using 640 days of KM3NeT/ARCA data, the collaboration finds no significant diffuse astrophysical neutrino flux and sets upper limits for all-sky and Galactic Ridge emission.

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