Publications (15)
Leptogenesis in SO(10)
Chee Sheng Fong, Davide Meloni, Aurora Meroni +1
We consider Grand Unified Theories (GUTs) with vacuum expectation values (vevs) for fermion masses in the representation. We show t…
Generalised Geometrical CP Violation in a Lepton Flavour Model
Ivan Girardi, Aurora Meroni, S. T. Petcov +1
We analyse the interplay of generalised CP transformations and the non-Abelian discrete group and use the semi-direct product , a…
Neutrinoless Double Beta Decay in the Presence of Light Sterile Neutrinos
Ivan Girardi, Aurora Meroni, S. T. Petcov
We investigate the predictions for neutrinoless double beta (-) decay effective Majorana mass in the 3+1 and 3+2 schemes wit…
Radiatively Induced Fermi Scale in Grand Unified Theories
Tommi Alanne, Aurora Meroni, Francesco Sannino +1
We consider Grand Unified Theories in which the hierarchy between the unification and the Fermi scale emerges radiatively. Within the Pati-Salam framework, we show that it is possi…
Predictions for Neutrino Masses, -Decay and Lepton Flavor Violation in a SUSY Model of Flavour
Mu-Chun Chen, Kalyana T. Mahanthappa, Aurora Meroni +1
We obtain predictions for the neutrino masses, the effective Majorana mass in neutrinoless double beta decay and for the rates of the lepton flavor violating processes $μ\rightarr…
Partially composite Higgs models: Phenomenology and RG analysis
Tommi Alanne, Diogo Buarque Franzosi, Mads T. Frandsen +3
We study the phenomenology of partially composite-Higgs models where electroweak symmetry breaking is dynamically induced, and the Higgs is a mixture of a composite and an elementa…
A Radiatively induced Elementary Goldstone Higgs in SU(4)/Sp(4)
Aurora Meroni
Using a pattern of chiral symmetry breaking, we investigate the pseudo-Goldstone nature of the Higgs boson in an elementary realisation that at the same ti…
Mixing Patterns from the Groups Sigma (n phi)
Claudia Hagedorn, Aurora Meroni, Lorenzo Vitale
We survey the mixing patterns which can be derived from the discrete groups Sigma (36 x 3), Sigma (72 x 3), Sigma (216 x 3) and Sigma (360 x 3), if these are broken to abelian subg…
Neutrino mass generation and leptogenesis via pseudo-Nambu-Goldstone Higgs portal
Tommi Alanne, Aurora Meroni, Kimmo Tuominen
We consider an extension of the Standard Model with the global symmetry breaking pattern SO(5)/SO(4), where the Higgs boson arises as a pseudo-Nambu-Goldstone boson. The scalar con…
Neutrino masses and ordering via multimessenger astronomy
Kasper Langaeble, Aurora Meroni, Francesco Sannino
We define the theoretical framework and deduce the conditions under which multi-messenger astronomy can provide useful information about neutrino masses and their ordering. The fra…
The nature of massive neutrinos and multiple mechanisms in neutrinoless double beta decay
Aurora Meroni
Determining the nature -Dirac or Majorana- of massive neutrinos is one of the most pressing and challenging problems in the field of neutrino physics. We discuss how one can possib…
A SUSY SU(5)xT' Unified Model of Flavour with large θ_{13}
Aurora Meroni, S. T. Petcov, Martin Spinrath
We present a SUSY SU(5)xT' unified flavour model with type I see-saw mechanism of neutrino mass generation, which predicts the reactor neutrino angle to be θ_{13} = 0.14 close to…
Theory and Phenomenology of the Elementary Goldstone Higgs
Helene Gertov, Aurora Meroni, Emiliano Molinaro +1
We show, via a careful analytical and numerical analysis, that a pseudo Goldstone nature of the Higgs is naturally embodied by an elementary realization that also serves as ultravi…
Uncovering Multiple CP-Nonconserving Mechanisms of $\betabeta$-Decay
Amand Faessler, Aurora Meroni, Serguey T. Petcov +2
We consider the possibility of several different mechanisms contributing to the $\betabeta$-decay amplitude in the general case of CP nonconservation: light Majorana neutrino excha…
Vacuum alignment with(out) elementary scalars
Tommi Alanne, Helene Gertov, Aurora Meroni +1
We systematically elucidate differences and similarities of the vacuum alignment issue in composite and renormalizable elementary extensions of the Standard Model featuring a pseud…