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

2.6k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2010 · hep-phShow all

12 papers · 2 filters

hep-ph2010

Phenomenology of LFV at low-energies and at the LHC: strategies to probe the SUSY seesaw

A. M. Teixeira, A. Abada, A. J. R. Figueiredo +1

We study the impact of a type-I SUSY seesaw concerning lepton flavour violation (LFV) at low-energies and at the LHC. At the LHC, $ χ_2^0\to \tilde \ell \,\ell \to \ell \,\ell\,χ_1…

hep-ph2010★ 1 cited

NSI can improve LMA predictions: neutrino decay in solar matter?

Joao Pulido, C. R. Das

We investigate the prospects for non-standard interactions (NSI) in solar neutrino propagation and detection and find that these may solve the tension between the observed flatness…

hep-ph2010★ 4 cited

Valence quark contributions for the gamma N -> P11(1440) transition

G. Ramalho, K. Tsushima

A covariant spectator quark model is applied to estimate the valence quark contributions to the$ F1*(Q2) and F2*(Q2) transition form factors for the gamma N -> P11(1440) reaction.…

hep-ph2010★ 43 cited

A model for the Delta(1600) resonance and gamma N -> Delta(1600) transition

G. Ramalho, K. Tsushima

A covariant spectator constituent quark model is applied to study the gamma N -> Delta(1600) transition. Two processes are important in the transition: a photon couples to the indi…

hep-ph2010★ 2 cited

A covariant formalism for the N* electroproduction at high momentum transfer

G. Ramalho, Franz Gross, M. T. Pena +1

A constituent quark model based on the spectator formalism is applied to the gamma N -> N* transition for the three cases, where N* is the nucleon, the Delta and the Roper resonanc…

hep-ph2010★ 14 cited

Improving LMA predictions with non-standard interactions: neutrino decay in solar matter?

C. R. Das, Joao Pulido

It has been known for some time that the well established LMA solution to the observed solar neutrino deficit fails to predict a flat energy spectrum for SuperKamiokande as opposed…

hep-ph2010★ 8 cited

Basis invariant conditions for supersymmetry in the two-Higgs-doublet model

P. M. Ferreira, Howard E. Haber, Joao P. Silva

The minimal supersymmetric standard model involves a rather restrictive Higgs potential with two Higgs fields. Recently, the full set of classes of symmetries allowed in the most g…

hep-ph2010★ 33 cited

CP properties of symmetry-constrained two-Higgs-doublet models

P. M. Ferreira, M. Maniatis, O. Nachtmann +1

The two-Higgs-doublet model can be constrained by imposing Higgs-family symmetries and/or generalized CP symmetries. It is known that there are only six independent classes of such…

hep-ph2010★ 44 cited

Nearest-Neighbour Interaction from an Abelian Symmetry and Deviations from Hermiticity

G. C. Branco, D. Emmanuel-Costa, C. Simoes

We show that Nearest-Neighbour Interaction (NNI) textures for the quark mass matrices can be obtained through the introduction of an Abelian flavour symmetry. The minimal realisati…

hep-ph2010★ 50 cited

Electromagnetic form factors of the Delta with D-waves

G. Ramalho, M. T. Pena, Franz Gross

The electromagnetic form factors of the Delta baryon are evaluated within the framework of a covariant spectator quark model, where S and D-states are included in the wave func…

hep-ph2010★ 55 cited

Valence quark contributions for the gamma N -> P11(1440) form factors

G. Ramalho, Kazuo Tsushima

Using a covariant spectator quark model we estimate valence quark contributions to the F1*(Q2) and F2*(Q2) transition form factors for the gamma N -> P11(1440) reaction. The Roper…

hep-ph2010★ 91 cited

Renormalization-group constraints on Yukawa alignment in multi-Higgs-doublet models

P. M. Ferreira, L. Lavoura, Joao P. Silva

We write down the renormalization-group equations for the Yukawa-coupling matrices in a general multi-Higgs-doublet model. We then assume that the matrices of the Yukawa couplings…