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Photon Spectrum Produced by the Late Decay of a Cosmic Neutrino Background

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arxiv astro-ph/9903397 v2 pith:EXGWY5OA submitted 1999-03-25 astro-ph hep-ph

Eduard Masso , Ramon Toldra This is my paper · ORCID
classification astro-phhep-ph
keywords backgroundcosmicneutrinosphotonspectrumneutrinoallowbeen
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We obtain the photon spectrum induced by a cosmic background of unstable neutrinos. We study the spectrum in a variety of cosmological scenarios and also we allow for the neutrinos having a momentum distribution (only a critical matter dominated universe and neutrinos at rest have been considered until now). Our results can be helpful when extracting bounds on neutrino electric and magnetic moments from cosmic photon background observations.

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  1. Testing an unstable cosmic neutrino background

    hep-ph 2025-05 unverdicted novelty 2.0 of 10

    A proceedings review argues that unstable relic neutrinos could ease the DESI neutrino mass tension and explain the EDGES and ARCADE2 anomalies, but the radiative decay solution clashes with magnetic moment bounds by ...

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