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most citedSound Speeds, Cracking and Stability of Self-Gravitating Anisotropic Compact Objects

853 citations

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hep-ph2011★ 204 cited

Type II Seesaw at LHC: the Roadmap

Alejandra Melfo, Miha Nemevsek, Fabrizio Nesti +2

In this Letter we revisit the type-II seesaw mechanism based on the addition of a weak triplet scalar to the standard model. We perform a comprehensive study of its phenomenology a…

hep-ph2011★ 29 cited

Inert Doublet Dark Matter and Mirror/Extra Families after Xenon100

Alejandra Melfo, Miha Nemevsek, Fabrizio Nesti +2

It was shown recently that mirror fermions, naturally present in a number of directions for new physics, seem to require an inert scalar doublet in order to pass the electroweak pr…

hep-ph2011★ 12 cited

Three Extra Mirror or Sequential Families: a Case for Heavy Higgs and Inert Doublet

Homero Martínez, Alejandra Melfo, Fabrizio Nesti +1

We study the possibility of the existence of extra fermion families and an extra Higgs doublet. We find that requiring the extra Higgs doublet to be inert leaves space for three ex…

hep-ph2010★ 18 cited

Type II see-saw dominance in SO(10)

Alejandra Melfo, Alba Ramirez, Goran Senjanovic

Grand unified theories where the neutrino mass is given by Type II seesaw have the potential to provide interesting connections between the neutrino and charged fermion sectors. We…

hep-ph2008★ 15 cited

Metastable gauged O'Raifeartaigh

Borut Bajc, Alejandra Melfo

We study the possibility of obtaining metastable supersymmetry breaking vacua in a perturbative gauge theory without singlet fields, thus allowing for scenarios where a grand unifi…

hep-ph2007★ 2 cited

Grand Unification with and without Supersymmetry

Alejandra Melfo

Grand Unified Theories based on the group SO(10) generically provide interesting and testable relations between the charged fermions and neutrino sector masses and mixings. In the…