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arXiv · 2301.03523

Can Sterile Neutrino Explain Very High Energy Photons from GRB221009A?

Shu-Yuan Guo·Maxim Khlopov·Lei Wu·Bin Zhu
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Abstract

The LHAASO collaboration has reported their observation of very high energy photons ($E^{max}_\gamma \simeq 18$ 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.

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Shu-Yuan Guo, Maxim Khlopov, Lei Wu, Bin Zhu. 2023-01-09. Can Sterile Neutrino Explain Very High Energy Photons from GRB221009A?. https://doi.org/10.1103/physrevd.108.l021302

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