Can Sterile Neutrino Explain Very High Energy Photons from GRB221009A?

Shuangshuang Guo,Maxim Yu. Khlopov,Lei Wu,Bin Zhu

arXiv (Cornell University)(2023)

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摘要
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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sterile neutrino,high energy photons,grb221009a
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