output
20022023
most citedTheory and phenomenology of two-Higgs-doublet models

2.6k citations

Showing 2006Show all

9 papers · 1 filter

hep-ph2006★ 54 cited

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.

hep-ph2006★ 83 cited

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…

hep-ph2006★ 8 cited

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…

hep-ph2006★ 16 cited

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…

hep-ph2006★ 8 cited

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…

hep-ph2006★ 31 cited

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 $…

hep-ph2006★ 7 cited

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…

hep-ph2006

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…

hep-ph2006★ 409 cited

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…