109 citations · 955 across the 47 of their papers we have counts for
47 papers
Feasible Deviations from Unitarity with Vector-Like Quark Singlets
Francisco Albergaria, Francisco J. Botella, G. C. Branco +2
We deduce pertinent relations between the elements of the CKM matrix, and find that not all of these are totally compatible with experiment and/or the assumption of the SM $3 \time…
Vector-like quark doublets, weak-basis invariants and CP violation
F. Albergaria, J. F. Bastos, B. Belfatto +4
We study Standard Model extensions with isodoublet vector-like quarks with standard charges. Their presence induces right-handed charged and neutral currents. We identify minimal s…
Reducing Complex Phases and other Subtleties of CP Violation
José Filipe Bastos, J. I. Silva-Marcos
When extending the SM, e.g. with vector-like quarks (VLQ), one inevitably encounters more than one CP violating complex phases. In this work, we develop a method useful in reducing…
Leptonic CP violation from the seesaw
C. C. Nishi, J. I. Silva-Marcos
The seesaw extension of the SM explains the tiny neutrino masses and it is accompanied by many CP violating phases. We study the case where all leptonic CP violation arises from th…
Does Quark Mixing play a role in the Lepton Sector?
Francisco Albergaria, G. C. Branco, José Filipe Bastos +1
We suggest a simple relation between the quark and the lepton mixing within the framework of type-I seesaw mechanism. We show that within our ansatz the empirical King-Mohapatra-Sm…
Vector-like Singlet Quarks: a Roadmap
João M. Alves, G. C. Branco, A. L. Cherchiglia +5
We review the theory and phenomenology of isosinglet vector-like quarks (VLQs). In recent years, interest in VLQs has been increasing, due to their contributions to new physics eff…