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arXiv · 1404.4398

Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications

Sebastian A. R. Ellis·Rohini M. Godbole·Shrihari Gopalakrishna·James D. Wells
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Abstract

With the renewed interest in vector-like fermion extensions of the Standard Model, we present here a study of multiple vector-like theories and their phenomenological implications. Our focus is mostly on minimal flavor conserving theories that couple the vector-like fermions to the SM gauge fields and mix only weakly with SM fermions so as to avoid flavor problems. We present calculations for precision electroweak and vector-like state decays, which are needed to investigate compatibility with currently known data. We investigate the impact of vector-like fermions on Higgs boson production and decay, including loop contributions, in a wide variety of vector-like extensions and their parameter spaces.

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Sebastian A. R. Ellis, Rohini M. Godbole, Shrihari Gopalakrishna, James D. Wells. 2014-04-16. Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications. https://doi.org/10.1007/jhep09(2014)130

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