Theory and phenomenology of Dirac neutrinos

Abstract

In this thesis I discuss in some detail the possibility that neutrinos are Dirac. If this is indeed the case, some extra symmetries beyond the Standard Model gauge group need to be enforced in order to protect Diracness and the smallness of neutrino mass. These symmetries may have a deep connection with other physics sectors, like Dark Matter stability. I also review the general seesaw framework applied to Dirac neutrinos in a model-independent way thanks to the analysis of generalized Weinberg operators and give some simple, elegant UV complete examples both for seesaw variants and radiative mass models. Finally I study in some detail two models with very rich phenomenological predictions.

148p, 25 figures, 9 tables

References in corpus (52)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• From the trees to the forest: a review of radiative neutrino mass models
• Neutrino tri-bi-maximal mixing from a non-Abelian discrete family symmetry
• Symmetry of Lepton Mixing
• Probing the scotogenic model with lepton flavor violating processes
• Pathways to Naturally Small Dirac Neutrino Masses
• Gauging U(1) symmetries and the number of right-handed neutrinos
• Systematic classification of two-loop realizations of the Weinberg operator
• Two-loop Dirac neutrino mass and WIMP dark matter
• Scotogenic Inverse Seesaw Model of Neutrino Mass
• Derivation of Dark Matter Parity from Lepton Parity
• Scotogenic $A_4$ Neutrino Model for Nonzero ${\theta }_{13}$ and Large ${\delta }_{CP}$
• Generalized Bottom-Tau unification, neutrino oscillations and dark matter: predictions from a lepton quarticity flavor approach
• Large U_{e3} and Tri-bimaximal Mixing
• Extended Black Box Theorem for Lepton Number and Flavor Violating processes
• Recipes and Ingredients for Neutrino Mass at Loop Level
• Radiative Left-Right Dirac Neutrino Mass
• Relating quarks and leptons with the T7 flavour group
• Common Origin of Neutrino Mass, Dark Matter and Dirac Leptogenesis
• Scotogenic $Z_2$ or $U(1{)}_D$ Model of Neutrino Mass with $\Delta (27)$ Symmetry
• T(13) Flavor Symmetry and Decaying Dark Matter
• A New Viable Region of Inert Higgs Doublet Dark Matter Model with Scotogenic Extension
• Simplest Radiative Dirac Neutrino Mass Models
• The simplest scoto-seesaw model: WIMP dark matter phenomenology and Higgs vacuum stability
• Scotogenic $U(1{)}_{\chi }$ Dirac Neutrinos
• Modular symmetry at level 6 and a new route towards finite modular groups
• Testing a lepton quarticity flavor theory of neutrino oscillations with the DUNE experiment
• Search for neutrinoless quadruple-$\beta$ decay of ${}^{150}$Nd with the NEMO-3 detector
• Simple theory for scotogenic dark matter with residual matter-parity
• Primordial black holes and scotogenic dark matter
• Two loop Induced Dirac Neutrino Model and Dark Matters with Global $U(1{)}^{\prime }$ Symmetry
• Dark matter stability from Dirac neutrinos in scotogenic 3-3-1-1 theory
• Anomaly-free Abelian gauge symmetries with Dirac scotogenic models
• Reloading the Axion in a 3-3-1 setup
• Influence of an inert charged Higgs boson on the muon $g-2$ and radiative neutrino masses in a scotogenic model
• Phenomenology of fermion dark matter as neutrino mass mediator with gauged B-L
• Inferring the nature of active neutrinos: Dirac or Majorana?
• Dynamical inverse seesaw mechanism as a simple benchmark for electroweak breaking and Higgs boson studies
• Dark matter in a charged variant of the Scotogenic model
• An ultraviolet completion for the Scotogenic model
• Muon $g-2$ in $U(1{)}_{\mu -\tau }$ Symmetric Gauged Radiative Neutrino Mass Model
• Anomaly-free Abelian gauge symmetries with Dirac seesaws
• A modular $A_4$ symmetric Scotogenic model for Neutrino mass and Dark Matter
• Two-Higgs-Doublet Models with a Flavored ${\mathbb{Z}}_2$
• Dirac neutrinos, dark matter stability and flavour predictions from Lepton Quarticity
• Cobimaximal Mixing with Dirac Neutrinos
• Gravitational wave induced baryon acoustic oscillations
• Indirect detection constraints on the scotogenic dark matter model
• Naturally Light Dirac Neutrinos from SU(6)
• Naturally Light Dirac Neutrinos from $SO(10)\times U(1{)}_{\psi }$