Search for heavy neutrinos at Belle

Dr. Dmitri Liventsev (KEK)

The Standard Model (SM) is very successful in explanating almost all experimental results but still fails to explain certain phenomena, namely baryon asymmetry of the Universe, existence of dark matter and neutrino oscillations. Heavy neutrinos appear in many extensions of the SM as a way to establish neutrino masses, provide a dark matter particle etc. We report on the search for heavy neutrinos using data collected by the Belle detector at the asymmetric e+e- collider KEKB in KEK, Tsukuba, Japan