Debasish Borah, Arnab Dasgupta, Ujjal Kumar Dey, Gaurav Tomar Physical Review D 101, 075039 (2020) https://doi.org/10.1103/PhysRevD.101.075039 Abstract The ANtarctic Impulsive Transient Antenna (ANITA) Collaboration has observed two EeV-energy, upward-going events originating from below the horizon. As no standard-model (SM) particles propagating through the Earth at such energy and exit angles can give rise to the required survival probability for the observed events, severa

Haiying Cai Physical Review D 101, 035006 (2020) https://doi.org/10.1103/PhysRevD.101.035006 Abstract We propose a two-loop induced radiative neutrino model with hidden gauged U (1) symmetry, in which dark matter of Dirac fermions arises. The relic density gets a contribution from annihilation and semiannihilation due to a residual Z_3 parity. After imposing the requirement of neutrino oscillation data and lepton flavor violation bounds, we find that semiannihilation plays a