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arXiv · hep-ph/0001302

Weak-Singlet Fermions: Models and Constraints

Marko B. Popovic·Elizabeth H. Simmons
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Abstract

We employ data from precision electroweak tests and collider searches to derive constraints on the possibility that weak-singlet fermions mix with the ordinary Standard Model fermions. Our findings are presented within the context of a theory with weak-singlet partners for all ordinary fermions and theories in which only third-generation fermions mix with weak singlets. In addition, we indicate how certain results can be applied more widely in theories containing exotic fermions.

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Marko B. Popovic, Elizabeth H. Simmons. 2000-02-09. Weak-Singlet Fermions: Models and Constraints. https://doi.org/10.1103/physrevd.62.035002

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