154 citations · 448 across the 8 of their papers we have counts for
8 papers
Enlarging the window for radiative leptogenesis
G. C. Branco, R. Gonzalez Felipe, F. R. Joaquim +1
We investigate the scenario of resonant thermal leptogenesis, in which the leptonic asymmetries are generated through renormalization group corrections induced at the leptogenesis…
Radiatively induced leptogenesis in a minimal seesaw model
R. Gonzalez Felipe, F. R. Joaquim, B. M. Nobre
We study the possibility that the baryon asymmetry of the universe is generated in a minimal seesaw scenario where two right-handed Majorana neutrinos with degenerate masses are ad…
Polychromatic Grand Unification
G. C. Branco, J. -M. Gerard, R. Gonzalez Felipe +1
The possibility of achieving a gauge coupling grand unification by increasing the QCD degrees of freedom at higher energies is investigated. When confronted with precision low-ener…
Rare top decays t -> c gamma, t -> c g and CKM unitarity
J. A. Aguilar-Saavedra, B. M. Nobre
Top flavour-changing neutral decays are extremely suppressed within the Standard Model (SM) by the GIM mechanism, but can reach observable rates in some of its extensions. We compu…
Extra Dimensions, Isosinglet Charged Leptons and Neutrino Factories
G. C. Branco, D. Delepine, B. Nobre +1
Isosinglet fermions naturally arise in a variety of extensions of the Standard Model, in particular in models with extra dimensions. In this paper, we study the effect of the addit…
Leptogenesis and Low Energy CP Violation
G. C. Branco, T. Morozumi, B. M. Nobre +1
We discuss the possibility of relating the size and sign of the observed baryon asymmetry of the universe to CP violation observable at low energies, in a framework where the obser…