Universidade Técnica de Lisboa

output

19952020

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.

collaborating institutions

Showing 2011Show all

93 papers · 1 filter

physics.space-ph2011★ 12 cited

Testing the Flyby Anomaly with the GNSS Constellation

O. Bertolami, F. Francisco, P. J. S. Gil +1

We propose the concept of a space mission to probe the so called flyby anomaly, an unexpected velocity change experienced by some deep-space probes using earth gravity assists. The…

hep-ph2011★ 66 cited

Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?

P. M. Ferreira, Rui Santos, Marc Sher +1

LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decaying into two photons. We focus on two-Higgs-doublet Models, and study the interesting possibility that the…

gr-qc2011

Black holes and quasiblack holes: Some history and remarks

José P. S. Lemos

A brief reference to the two Schwarzschild solutions and what Petrov had to say about them is given. Comments on how the Schwarzschild vacuum solution describes a black hole are al…

q-fin.ST2011★ 39 cited

The topology of cross-border exposures: beyond the minimal spanning tree approach

Alessandro Spelta, Tanya Araújo

The recent financial crisis has stressed the need to understand financial systems as networks of interdependent countries, where cross-border financial linkages play the fundamenta…

hep-ph2011★ 72 cited

Implications of the LHC two-photon signal for two-Higgs-doublet models

P. M. Ferreira, Rui Santos, Marc Sher +1

We study the implications for Two Higgs Doublet Models of the recent announcement at the LHC giving a tantalizing hint for a Higgs boson of mass 125 GeV decaying into two photons.…

hep-ph2011★ 9 cited

Invariants, Alignment and the Pattern of Fermion Masses and Mixing

G. C. Branco, J. I. Silva-Marcos

We show that the main features of the pattern of fermion masses and mixing can be expressed in terms of simple relations among weak-basis invariants. In the quark sector, we identi…

hep-lat2011★ 22 cited

Generating SU(Nc) pure gauge lattice QCD configurations on GPUs with CUDA

Nuno Cardoso, Pedro Bicudo

The starting point of any lattice QCD computation is the generation of a Markov chain of gauge field configurations. Due to the large number of lattice links and due to the matrix…

gr-qc2011★ 155 cited

Gravitational Waves from Quasicircular Extreme Mass-Ratio Inspirals as Probes of Scalar-Tensor Theories

Nicolas Yunes, Paolo Pani, Vitor Cardoso

A stellar-mass compact object spiraling into a supermassive black hole, an extreme-mass-ratio inspiral (EMRI), is one of the targets of future gravitational-wave detectors and it o…

gr-qc2011★ 29 cited

Localizing modes of massive fermions and a U(1) gauge field in the inflating baby-skyrmion branes

Térence Delsate, Nobuyuki Sawado

We consider the six dimensional brane world model, where the brane is described by a localized solution to the baby-Skyrme model extending in the extradimensions. The branes have a…

math.DS2011★ 16 cited

Chaos in the square billiard with a modified reflection law

Gianluigi Del Magno, João Lopes Dias, Pedro Duarte +2

The purpose of this paper is to study the dynamics of a square billiard with a non-standard reflection law such that the angle of reflection of the particle is a linear contraction…

hep-ph2011★ 3 cited

Towards Meson Spectroscopy Instead of Bump Hunting

George Rupp, Susana Coito, Eef van Beveren

Mesonic resonances are generally observed in data as narrow, moderately broad, or wide peaks in scattering or production processes. In the eyes of nearly all experimentalists, any…

hep-ph2011

Dark Matter and Leptogenesis in the Inverse Seesaw

Francois-Xavier Josse-Michaux, Emiliano Molinaro

We study a seesaw-type extension of the Standard Model in which the symmetry group is enlarged by a global U(1). We introduce adequate scalar and fermion representations which natu…

hep-ph2011★ 1 cited

Phenomenology of TeV Scale See-Saw Mechanism

Emiliano Molinaro

We review the low energy constraints on type I see-saw extensions of the Standard Model in which the scale of new physics, associated to lepton number violation, can be probed at c…

cs.LO2011★ 3 cited

Towards Automated Verification of Web Services

C. Vaz, C. Ferreira

This paper proposes the use of model-checking software technology for the verification of workflows and business processes behaviour based on web services, namely the use of the SP…

hep-ph2011★ 3 cited

Possible trace of neutrino nonstandard interactions in the supernova

C. R. Das, Joao Pulido

Neutrino non-standard interactions (NSI), previously introduced for the sun, are studied in the supernova context. For normal hierarchy the probability for electron neutrinos and a…

hep-ph2011★ 214 cited

Leptonic CP violation

G. C. Branco, R. Gonzalez Felipe, F. R. Joaquim

Several topics on CP violation in the lepton sector are reviewed. A few theoretical aspects concerning neutrino masses, leptonic mixing, and CP violation will be covered, with spec…

cs.IT2011★ 56 cited

Large Deviations Performance of Consensus+Innovations Distributed Detection with Non-Gaussian Observations

Dragana Bajovic, Dusan Jakovetic, Jose M. F. Moura +2

We establish the large deviations asymptotic performance (error exponent) of consensus+innovations distributed detection over random networks with generic (non-Gaussian) sensor obs…

math.DG2011

Stable 3-spheres in $C^{3}$

Isabel M. C. Salavessa

By only using spectral theory of the Laplace operator on spheres, we prove that the unit 3-dimensional sphere of a 2-dimensional complex subspace of $C^{3}$ is a $Ω$ -stable…

cond-mat.str-el2011★ 38 cited

Charge dynamics in half-filled Hubbard chains with finite on-site interaction

R. G. Pereira, K. Penc, S. R. White +2

We study the charge dynamic structure factor of the one-dimensional Hubbard model with finite on-site repulsion U at half filling. Numerical results from the time-dependent density…

hep-lat2011★ 45 cited

Lattice QCD computation of the SU(3) String Tension critical curve

N. Cardoso, P. Bicudo

We investigate the critical curve of the string tension sigma(T) as a function of temperature in quenched gauge invariant SU(3) lattice gauge theory. We extract sigma(T) from the c…

hep-lat2011

Colour flux-tubes in static Pentaquark systems

Pedro Bicudo, Nuno Cardoso, Marco Cardoso

The colour fields created by the static tetraquark and pentaquark systems are computed in quenched SU(3) lattice QCD, with gauge invariant lattice operators, in a 24^3 x 48 lattice…

hep-lat2011★ 13 cited

Colour flux-tubes in static Pentaquark and Tetraquark systems