The paper derives a range of sterile neutrino masses and transition magnetic moments that would reproduce the LORRI cosmic optical background excess, but the excess is only a 1.5-sigma signal.
The FN symme- try constrains the structure of the mass matrix, enforcing degeneracy at leading order
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Bounds on decaying sterile neutrinos via magnetic dipole moment from COB intensity
The paper derives a range of sterile neutrino masses and transition magnetic moments that would reproduce the LORRI cosmic optical background excess, but the excess is only a 1.5-sigma signal.