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New constraints on exotic fermion masses from theories
Phys. Rev. D 35, 3519 – Published 1 June, 1987
DOI: https://doi.org/10.1103/PhysRevD.35.3519
Abstract
The recent limit obtained by the UA1 Collaboration on the mass of a possible fourth-generation charged lepton (M>41 GeV) is used to place new (model-dependent) constraints on the masses of exotic leptons which occur in models. These new limits only apply if the sum of the charged- and neutral-exotic-fermion masses is less than that of the W boson and the charged exotic fermion is heavier than its neutral partner.
References (2)
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