69 citations · 84 across the 3 of their papers we have counts for
3 papers
Weak Basis Transformations and Texture Zeros in the Leptonic Sector
G. C. Branco, D. Emmanuel-Costa, R. Gonzalez Felipe +1
We investigate the physical meaning of some of the texture zeros which appear in most of the Ansatze on leptonic masses and their mixing. It is shown that starting from arbitrary l…
CP Violation and Neutrino Masses and Mixings from Quark Mass Hierarchies
Wilfried Buchmuller, Laura Covi, David Emmanuel-Costa +1
We study the connection between quark and lepton mass matrices in a supersymmetric SO(10) GUT model in six dimensions, compactified on an orbifold. The physical quarks and leptons…
Natural Gauge and Gravitational Coupling Unification and the Superpartner Masses
David Emmanuel-Costa, Pavel Fileviez Perez, Ricardo Gonzalez Felipe
The possibility to achieve unification at the string scale in the context of the simplest supersymmetric grand unified theory is investigated. We find conservative upper bounds on…