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Non-Unitary Mixing Matrices in Neutrino and Vector-like Quark Models

Authors :
Pereira, Pedro M. F.
Publication Year :
2022

Abstract

This work analyses a class of extensions of the Standard Model through the lens of a novel exact parameterisation. This parameterisation is specially suitable to the analysis of extensions of the Standard Model with non-unitary mixing matrices, like models with vector-like fermions or right-handed neutrinos. The usefulness of this parameterisation is motivated with two example models: A) Standard Model with the addition of $n_u$ up and $n_d$ down singlet vector-like quarks and B) Standard Model with the addition of $n_R$ right-handed neutrinos.<br />Comment: Proceedings of the Corfu Summer Institute 2021 "Workshop on the Standard Model and Beyond" August 29 - September 8, 2021, 9 pages. Typo in the 1st version: In equation 24 $Z$ should be $\overline{K}$. Versions 3 and 4: Clarified notation in the neutrino section

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2205.05101
Document Type :
Working Paper