4 citations · 12 across the 8 of their papers we have counts for
8 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…
Unitarity Relations in the Presence of Vector-Like Quarks
Francisco Albergaria, Gustavo C. Branco
We study, in a systematic way, the unitarity relations which arise in extensions of the three generations Standard Model (3gSM) involving the addition of vector-li…
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…
Oblique corrections from leptoquarks
Francisco Albergaria, Luís Lavoura
We present general formulas for the oblique-correction parameters , , , , , and in a model of New Physics having arbitrary numbers of scalar leptoquarks of the f…
Oblique corrections from triplet quarks
Francisco Albergaria, Luís Lavoura, Jorge C. Romão
We present general formulas for the oblique-correction parameters , , , , , and in an extension of the Standard Model having arbitrary numbers of singlet, double…
CP-odd and CP-even Weak-Basis Invariants in the Presence of Vector-Like Quarks
Francisco Albergaria, G. C. Branco, José Filipe Bastos +1
We propose a minimal set of weak-basis invariants in an extension of the SM where one up-type isosinglet vector-like quark is introduced, which allows us to obtain all the physical…
Prescription for finite oblique parameters and in extensions of the SM with
Francisco Albergaria, Luís Lavoura
We consider extensions of the Standard Model with neutral scalars in multiplets of larger than doublets. When those scalars acquire vacuum expectation values, the resulting…