2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
10 papers · 2 filters
TeV-scale seesaw mechanism catalyzed by the electron mass
W. Grimus, L. Lavoura
We construct a model in which the neutrino Dirac mass terms are of order the electron mass and the seesaw mechanism proceeds via right-handed neutrinos with masses of order TeV. In…
Trimaximal lepton mixing with a trivial Dirac phase
W. Grimus, L. Lavoura, A. Singraber
We present a model which employs the seesaw mechanism with five right-handed neutrinos, leading to trimaximal and CP-conserving lepton mixing. Tri-bimaximal mixing is a natural lim…
Astrophysical Implications of the Superstring-Inspired E_6 Unification and Shadow Theta-Particles
C. R. Das, L. V. Laperashvili, A. Tureanu
We have developed a concept of parallel existence of the ordinary (O) and mirror (M), or shadow (Sh) worlds. E_6 unification, inspired by superstring theory, restores the broken mi…
Remaining inconsistencies with solar neutrinos: can spin flavour precession provide a clue?
Joao Pulido, C R Das, Marco Picariello
A few inconsistencies remain after it has been ascertained that LMA is the dominant solution to the solar neutrino problem: why is the SuperKamiokande spectrum flat and why is the…
Multichannel calculation of excited vector resonances and the
Susana Coito, George Rupp, Eef van Beveren
A multichannel calculation of excited states is carried out within a generalization of the Resonance-Spectrum Expansion, which may shed light on the classificat…
Production of hadron pairs in electron-positron annihilation near the K(+)K(-), D-Dbar, B-Bbar and Lambda(c)(+)-Lambda(c)(-) thresholds
Eef van Beveren, George Rupp
We study the structures in cross sections and R ratios concerning electron-positron annihilation reactions, for open-strangeness, open-charm and open-beauty hadron-pair production,…
Real-time approach to quark confined systems at finite temperatures
A. V. Nefediev, J. E. F. T. Ribeiro
Generalised Nambu-Jona-Lasinio model for QCD is considered at finite temperatures in the framework of a real-time formalism. The proposed approach allows one to study various prope…
Type II seesaw mechanism for Higgs doublets and the scale of new physics
W. Grimus, L. Lavoura, B. Radovcic
We elaborate on an earlier proposal by Ernest Ma of a type II seesaw mechanism for suppressing the vacuum expectation values of some Higgs doublets. We emphasize that, by nesting t…
Cosmological Constant in a Model with Superstring-Inspired E_6 Unification and Shadow Theta-Particles
C. R. Das, L. V. Laperashvili, A. Tureanu
We have developed a concept of parallel existence of the ordinary (O) and mirror (M), or shadow (Sh) worlds. In the first part of the paper we consider a mirror world with broken m…
Quasi-degenerate neutrinos and tri-bi-maximal mixing
Ivo de Medeiros Varzielas
Assuming high-energy tri-bi-maximal mixing we study the radiative running of leptonic mixing angles and obtain limits on the high-energy scale from requiring consistency with the o…