Search for New Sequential Leptons in E exp + E exp - Annihilation at PETRA Energies

摘要

We have searched for new heavy leptons produced in e exp + e exp - annihilations at c.m. energies up to 36.6 GeV. The existence of a sequential lepton with a mass less than 15.5 GeV can be excluded with 95% C.L. This conclusion is almost independent of the lepton's decay properties. (ERA citation 07:044930)