A modified scotogenic model makes the lightest pseudo-Dirac singlet a dark matter candidate that annihilates mostly to neutrino pairs near threshold, reproducing the relic abundance while satisfying direct detection and lepton data bounds.
Lepton Flavor Violation in the Scotogenic Model
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High-scale leptogenesis in the scotogenic model decouples from LFV bounds and remains viable, while low-scale resonant leptogenesis is viable only in a narrow parameter region with suppressed flavor violation.
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Monochromatic neutrinos from scotogenic dark matter
A modified scotogenic model makes the lightest pseudo-Dirac singlet a dark matter candidate that annihilates mostly to neutrino pairs near threshold, reproducing the relic abundance while satisfying direct detection and lepton data bounds.
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When Does Leptogenesis Survive Lepton Flavor Violation Constraints? High- and Low-Scale Realizations in the Scotogenic Model
High-scale leptogenesis in the scotogenic model decouples from LFV bounds and remains viable, while low-scale resonant leptogenesis is viable only in a narrow parameter region with suppressed flavor violation.