Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 4, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2023/04/056
Keywords
neutrino properties; ultra high energy photons and neutrinos; axions; gamma ray bursts theory
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Recently, the LHAASO collaboration has observed gamma rays with energies up to ten TeV from the gamma-ray burst GRB221009A, generating interest in the astronomy, particle physics, and astrophysics communities for possible interpretations. In this paper, a plausible scenario is proposed where neutrinos are produced alongside TeV photons in the gamma-ray burst and subsequently decay into axion-like particles, which then convert into gamma rays in the galactic magnetic fields. This scenario helps alleviate the tension between previous interpretations of axion-like particles and the observational constraints on relevant coupling constant and mass.
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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