Leptons are a family of subatomic particles that play an important part in particle physics. Leptons include electrons, muons and tauons and their associated neutrinos. Kerons may be a type of lepton. The Omeyocan used the crystal skull to release leptons which would shift humans into the dimension they occupied. (SG1: "Crystal Skull")
Merlin later created a device which would shift someone into another dimension by releasing leptons, allowing him to work on the Sangraal while hiding it from the Others. (SG1: "Arthur's Mantle")