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Invisible Neutrino Decays as Origin of TeV Gamma Rays from GRB221009A

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arxiv 2212.03477 v2 pith:7DWOAWRL submitted 2022-12-07 hep-ph astro-ph.COastro-ph.HEhep-ex

classification hep-phastro-ph.COastro-ph.HEhep-ex
keywords gammaraysaxion-likeburstgamma-raygrb221009ainterpretationsparticle
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Recently, the LHAASO collaboration has observed the gamma rays of energies up to ten TeV from the gamma-ray burst GRB221009A, which has stimulated the community of astronomy, particle physics and astrophysics to propose various possible interpretations. In this paper, we put forward a viable scenario that neutrinos are produced together with TeV photons in the gamma-ray burst and gradually decay into the axion-like particles, which are then converted into gamma rays in the galactic magnetic fields. In such a scenario, the tension between previous axion-like particle interpretations and the existing observational constraints on the relevant coupling constant and mass can be relaxed.

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  1. Carpet-3 detection of a photon-like air shower with estimated primary energy above 100 TeV in a spatial and temporal coincidence with GRB 221009A

    astro-ph.HE 2025-02 conditional novelty 6.0 of 10

    Carpet-3 reports a photon-like air shower with estimated energy around 300 TeV arriving from the direction of GRB 221009A about 75 minutes after the trigger, with a coincidence probability of about 0.9 percent.

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