Can sterile neutrinos explain the very high energy photons from GRB221009A?
S. Guo, Maxim Khlopov, Lei Wu, Bin Zhu
Abstract
The LHAASO Collaboration has reported their observation of very high energy photons (${E}_{\ensuremath{\gamma}}^{\mathrm{max}}\ensuremath{\simeq}18\text{ }\text{ }\mathrm{TeV}$) from the gamma-ray burst GRB221009A. The sterile neutrino that involves both mixing and a 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 and big bang nucleosynthesis in standard cosmology.
Topics & Concepts
PhysicsCosmic microwave backgroundNeutrinoPhotonBig Bang nucleosynthesisCosmologyCosmic neutrino backgroundParticle physicsNucleosynthesisAstrophysicsSterile neutrinoMixing (physics)High energyNuclear physicsBig Bang (financial markets)Gamma-ray burstAstronomySolar neutrinoNeutrino oscillationStarsQuantum mechanicsEconomicsAnisotropyFinanceGamma-ray bursts and supernovaeCosmology and Gravitation TheoriesAstrophysics and Cosmic Phenomena