On the minimal active-sterile neutrino mixing in seesaw type I mechanism with sterile neutrinos at GeV scale
arXiv:1312.2887 · doi:10.1103/PhysRevD.89.017302
Abstract
Renewed interest in GeV-scale sterile neutrinos capable of explaining active neutrino oscillations via see-saw type I mechanism has been expressed in several proposals of direct searches. Given this activity we estimate the minimal values of sterile-active mixing angles provided one, two, or three sterile neutrinos are lighter than D-meson.
7 pages, 2 figures