Can Sterile Neutrino Explain Very High Energy Photons from GRB221009A?

Abstract

The LHAASO collaboration has reported their observation of very high energy photons ($E_{\gamma }^{max}\simeq 18$ TeV) from the gamma-ray burst GRB221009A. The sterile neutrino that involves both mixing and transition magnetic moment may be a viable explanation for these high energy photon events. However, we demonstrate that such a solution is strongly disfavored by the cosmic microwave background (CMB) and Big Bang nucleosynthesis (BBN) in the standard cosmology.

5 pages, 2 figures. Accepted for publication in Physical Review D Letter

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Cited by in corpus (4)

• Revisiting Lorentz invariance violation from GRB 221009A
• Towards a model of photon-axion conversion in the host galaxy of GRB 221009A
• 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
• Lorentz invariance violation from GRB221009A