2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT201 papers
- University of LisbonPT82 papers
- Universidade Técnica de LisboaPT54 papers
- Universitat de ValènciaES44 papers
- Instituto Politécnico de LisboaPT30 papers
- Instituto de Física CorpuscularES16 papers
- Thomas Jefferson National Accelerator FacilityUS15 papers
- European Organization for Nuclear ResearchCH13 papers
- Centre National de la Recherche ScientifiqueFR12 papers
- Consejo Superior de Investigaciones CientíficasES10 papers
- Centro de Física Teórica e Computacional9 papers
- University of ÉvoraPT9 papers
9 papers · 2 filters
Predictions of an A_4 model with a five-parameter neutrino mass matrix
L. Lavoura, H. Kuhbock
We consider a model with an A_4 flavour symmetry, recently proposed by E. Ma, and make a numerical study, through scatter plots, of its neutrino mass matrix.
Another Look at Minimal Lepton Flavour Violation, l_i -> l_j gamma, Leptogenesis, and the Ratio M_nu/ Lambda_LFV
Gustavo C. Branco, Andrzej J. Buras, Sebastian Jager +2
We analyze lepton flavour violation (LFV), as well as generation of the observed baryon-antibaryon asymmetry of the Universe (BAU) within a generalized minimal lepton flavour viola…
Upper Bound on the Proton Lifetime and the Minimal Non-SUSY Grand Unified Theory
Pavel Fileviez Perez
In this talk we show that it is possible to find an upper bound on the total proton lifetime. We conclude that the minimal realistic non-supersymmetric grand unified theory is the…
A new mechanism of neutrino mass generation in the NMSSM with broken lepton number
Asmaa Abada, Gautam Bhattacharyya, Gregory Moreau
In the Minimal Supersymmetric Standard Model with bilinear R-parity violation, only one neutrino eigenstate acquires a mass at tree level, consequently experimental data on neutrin…
Spontaneous CP Violation in a SUSY Model with a complex CKM
G. C. Branco, D. Emmanuel-Costa, J. C. Romao
It is pointed out that the recent measurement of the angle of the unitarity triangle, providing irrefutable evidence for a complex Cabibbo-Kobayashi-Maskawa (CKM) matrix, prese…
Charged-fermion masses in SO(10): analysis with scalars in 10+120
L. Lavoura, H. Kuhbock, W. Grimus
We consider the scenario in which the mass matrices of the charged fermions in the SO(10) Grand Unified Theory are generated exclusively by renormalizable Yukawa couplings to one $…
Looking for Delta I = 5/2 amplitude components in B -> pi pi and B -> rho rho experiments
F. J. Botella, David London, Joao P. Silva
We discuss how experiments measuring B -> pi pi and B -> rho rho may be used to search for a Delta I = 5/2 amplitude component. This component could be the explanation for a recent…
Braneworld cosmology: sneutrino inflation and leptogenesis
N. M. C. Santos, M. C. Bento, R. González Felipe
Modifications to the Friedmann equation in brane cosmology can have important implications for early universe phenomena such as inflation and the generation of the baryon asymmetry…
Proton stability in grand unified theories, in strings, and in branes
Pran Nath, Pavel Fileviez Perez
A broad overview of the current status of proton stability in unified models of particle interactions is given which includes non - supersymmetric unification, SUSY and SUGRA unifi…