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hep-ph2006★ 10 cited

Just so Higgs boson

F. Bazzocchi, M. Fabbrichesi, P. Ullio

We discuss a minimal extension to the standard model in which there are two Higgs bosons and, in addition to the usual fermion content, two fermion doublets and one fermion singlet…

hep-ph2006★ 22 cited

A Dark Matter Candidate from an Extra (Non-Universal) Dimension

Marco Regis, Marco Serone, Piero Ullio

We show that a recently constructed five-dimensional (5D) model with gauge-Higgs unification and explicit Lorentz symmetry breaking in the bulk, provides a natural dark matter cand…

hep-ph2006★ 211 cited

Leptogenesis and Low Energy CP Violation in Neutrino Physics

S. Pascoli, S. T. Petcov, Antonio Riotto

Taking into account the recent progress in the understanding of the lepton flavour effects in leptogenesis, we investigate in detail the possibility that the CP-violation necessary…

hep-ph2006★ 8 cited

Analysis of Rotation Curves in the Framework of the Gravitational Suppression Model

Christiane Frigerio Martins, Paolo Salucci

We present an analysis of suitable rotation curves (RCs) of eight galaxies, aimed at checking the consistency and universality of the gravitational suppression (GraS) hypothesis, a…

hep-ph2006★ 1 cited

Gauge-Higgs Unification on Flat Space Revised

Giuliano Panico

Models with gauge-Higgs unification on a flat space are typically affected by common problems, the main of which are the prediction of a too small top and Higgs mass and a too low…

hep-ph2006★ 31 cited

Increasing the Neutralino Relic Abundance with Slepton Coannihilations: Consequences for Indirect Dark Matter Detection

Stefano Profumo, Alessio Provenza

We point out that if the lightest supersymmetric particle (LSP) is a Higgsino- or Wino-like neutralino, the net effect of coannihilations with sleptons is to increase the relic abu…