PeV Scale Right Handed Neutrino Dark Matter in $S_4$ Flavor Symmetric extra U(1) model

Abstract

Recent observation of high energy neutrino in IceCube experiment suggests existence of superheavy dark matter beyond PeV. We identify the parent particles of neutrino as two degenerated right handed neutrinos, assuming the dark matter is the heaviest right handed neutrino. The $O(V_{cb})\sim O(10^{-2})$ flavor symmetry breaking accounts for the $O(10^{-4})$ mass degeneracy of right handed neutrinos which is a sizable scale to explain the successful resonant leptogenesis at the PeV scale. At the same time, non-thermal production of the heaviest right handed neutrino gives the right amount of dark matter for $T_{RH}\sim 10$PeV. The footprint of flavor symmetry is left in degenerated mass spectra of extra Higgs multiplet and colored Higgs multiplet which may be testable for LHC or future colliders.

16 pages, 3 tables: version accepted for publication in Physical Review D

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Cited by in corpus (5)

• Boosted Dark Matter in IceCube and at the Galactic Center
• Probing decaying heavy dark matter with the 4-year IceCube HESE data
• Perspectives for tests of neutrino mass generation at the GeV scale: Experimental reach versus theoretical predictions
• Lepton Anomalous Magnetic Moments in an $S_4$ Flavor-Symmetric Extra U(1) Model
• LHAASO Galactic Plane $\gamma$-rays Strongly Constrain Heavy Dark Matter