672 citations · 4.2k across the 59 of their papers we have counts for
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Modular Invariant Dynamics and Fermion Mass Hierarchies around
Ferruccio Feruglio, Valerio Gherardi, Andrea Romanino +1
We discuss fermion mass hierarchies within modular invariant flavour models. We analyse the neighbourhood of the self-dual point , where modular invariant theories possess a r…
Lepton Flavour Symmetries
Ferruccio Feruglio, Andrea Romanino
We provide a general classification of flavour symmetries according to their interplay with the proper Poincare' and gauge groups and to their linear or nonlinear action in field s…
Rank-One Flavor Violation and B-meson anomalies
Valerio Gherardi, David Marzocca, Marco Nardecchia +1
We assume that the quark-flavor coefficients matrix of the semileptonic operators addressing the neutral-current B-meson anomalies has rank-one, i.e. it can be described by a singl…
Can an unbroken flavour symmetry provide an approximate description of lepton masses and mixing?
Y. Reyimuaji, A. Romanino
We provide a complete answer to the following question: what are the flavour groups and representations providing, in the symmetric limit, an approximate description of lepton mass…
Stable lepton mass matrices
Valerie Domcke, Andrea Romanino
We study natural lepton mass matrices, obtained assuming the stability of physical flavour observables with respect to the variations of individual matrix elements. We identify all…
A closer look to the sgoldstino interpretation of the diphoton excess
P. Baratella, J. Elias-Miro, J. Penedo +1
We revisit the sgoldstino interpretation of the diphoton excess in the context of gauge mediation. While the bound on the gluino mass might seem to make the sgoldstino contribution…
Diphotons from Diaxions
Luis Aparicio, Aleksandr Azatov, Edward Hardy +1
We study models in which the 750 GeV diphoton excess is due to a scalar decaying to two pseudo-Nambu-Goldstone bosons that subsequently decay into two pairs of highly boosted photo…
Stable fermion mass matrices and the charged lepton contribution to neutrino mixing
David Marzocca, Andrea Romanino
We study the general properties of hierarchical fermion mass matrices in which the small eigenvalues are stable with respect to perturbations of the matrix entries and we consider…
A framework for baryonic R-parity violation in grand unified theories
Luca Di Luzio, Marco Nardecchia, Andrea Romanino
We investigate the possibility of obtaining sizeable R-parity breaking interactions violating baryon number but not lepton number within supersymmetric grand unified theories. Such…
Phenomenology of Minimal Unified Tree Level Gauge Mediation at the LHC
Maurizio Monaco, Maurizio Pierini, Andrea Romanino +1
We study the collider phenomenology of the minimal unified version of the supersymmetry breaking scheme called Tree-level Gauge Mediation. We identify a peculiar source of gaugino…
Nonzero |U_e3| from Charged Lepton Corrections and the Atmospheric Neutrino Mixing Angle
David Marzocca, Serguey T. Petcov, Andrea Romanino +1
After the successful determination of the reactor neutrino mixing angle θ_13 ~ 0.16 \neq 0, a new feature suggested by the current neutrino oscillation data is a sizeable deviation…
Simple and direct communication of dynamical supersymmetry breaking
Francesco Caracciolo, Andrea Romanino
We present a complete, calculable, and phenomenologically viable model of dynamical supersymmetry breaking. The model is a simple extension of the so called 3-2 model, with gauge g…
Neutrino Physics
Andrea Romanino
These lectures aim at providing a pedagogical overview of neutrino physics. We will mostly deal with standard neutrinos, the ones that are part of the Standard Model of particle ph…
Extended Tree-Level Gauge Mediation
Maurizio Monaco, Marco Nardecchia, Andrea Romanino +1
Tree-level gauge mediation (TGM) is a scenario of SUSY breaking in which the tree-level exchange of heavy (possibly GUT) vector fields generates flavor-universal sfermion masses. I…
Sizeable θ_13 from the Charged Lepton Sector in SU(5), (Tri-)Bimaximal Neutrino Mixing and Dirac CP Violation
David Marzocca, Serguey T. Petcov, Andrea Romanino +1
The recent results from T2K and MINOS experiments point towards a relatively large value of the reactor angle θ_13 in the lepton sector. In this paper we show how a large θ_13 can…
General Aspects of Tree Level Gauge Mediation
Marco Nardecchia, Andrea Romanino, Robert Ziegler
Tree level gauge mediation (TGM) may be considered as the simplest way to communicate supersymmetry breaking: through the tree level renormalizable exchange of heavy gauge messenge…
Flavour violation in supersymmetric SO(10) unification with a type II seesaw mechanism
Lorenzo Calibbi, Michele Frigerio, Stephane Lavignac +1
We study flavour violation in a supersymmetric SO(10) implementation of the type II seesaw mechanism, which provides a predictive realization of triplet leptogenesis. The experimen…
Tree Level Gauge Mediation
Marco Nardecchia, Andrea Romanino, Robert Ziegler
We propose a new scheme in which supersymmetry breaking is communicated to the MSSM sfermions by GUT gauge interactions at the tree level. The (positive) contribution of MSSM field…
Gauge coupling unification, the GUT scale, and magic fields
L. Calibbi, L. Ferretti, A. Romanino +1
We consider field sets that do not form complete SU(5) multiplets, but exactly preserve the one-loop MSSM prediction for independently of the value of their mass. Such f…
Hierarchical Soft Terms and Flavor Physics
Gian F. Giudice, Marco Nardecchia, Andrea Romanino
We study the framework of hierarchical soft terms, in which the first two generations of squarks and sleptons are heavier than the rest of the supersymmetric spectrum. This scheme…
Consequences of a unified, anarchical model of fermion masses and mixings
L. Calibbi, L. Ferretti, A. Romanino +1
We show that most features of the mass and mixing pattern of the second and third SM fermion families can be accounted for without making use of flavour symmetries or other types o…
A new, direct link between the baryon asymmetry and neutrino masses
Michele Frigerio, Pierre Hosteins, Stephane Lavignac +1
We point out that, in a class of SO(10) models with matter fields in 16 and 10 representations and type II realization of the seesaw mechanism, the light neutrino masses and the CP…
Flavour physics of leptons and dipole moments
M. Raidal, A. van der Schaaf, I. Bigi +82
This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the…
Physics at a future Neutrino Factory and super-beam facility
The ISS Physics Working Group
The conclusions of the Physics Working Group of the international scoping study of a future Neutrino Factory and super-beam facility (the ISS) are presented. The ISS was carried by…