Dirac Neutrinos and Hybrid Inflation from String Theory

Abstract

We consider a possible scenario for the generation of Dirac neutrino masses motivated by Type I string theory. The smallness of the neutrino Yukawa couplings is explained by an anisotropic compactification with one compactification radius larger than the others. In addition to this we utilise small Yukawa couplings to develop strong links between the origin of neutrino masses and the physics driving inflation. We construct a minimal model which simultaneously accommodates small Dirac neutrino masses leading to bi-large lepton mixing as well as an inflationary solution to the strong CP and to the $\mu$ problem.

24 pages, 3 figures, typos corrected, reference added to section 1

References in corpus (43)

• False Vacuum Inflation with Einstein Gravity
• Model-Independent Analysis of Soft Terms in Effective Supergravity and in String Theory
• Hadronic Decay of Late-Decaying Particles and Big-Bang Nucleosynthesis
• The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
• Particle Physics from Stars
• Hybrid Inflation in Supergravity
• Large Mixing Angle MSW and Atmospheric Neutrinos from Single Right-Handed Neutrino Dominance and U(1) Family Symmetry
• Resolving the Constrained Minimal and Next-to-Minimal Supersymmetric Standard Models
• Leptogenesis with Dirac Neutrinos
• Particle Spectrum in Supersymmetric Models with a Gauge Singlet
• Atmospheric and Solar Neutrinos with a Heavy Singlet
• Aspects of Type I String Phenomenology
• Small Neutrino Masses from Supersymmetry Breaking
• D=4,N=1, Type IIB Orientifolds
• Atmospheric and Solar Neutrinos from Single Right-Handed Neutrino Dominance and U(1) Family Symmetry
• Realistic Dirac Leptogenesis
• Cosmological Implications of Radiatively Generated Axion Scale
• Low-Scale See-Saw Mechanisms for Light Neutrinos
• HIGGS PHENOMENOLOGY OF THE SUPERSYMMETRIC MODEL WITH A GAUGE SINGLET
• Unification Constraints in the Next-to-Minimal Supersymmetric Standard Model
• Towards a No-Lose Theorem for NMSSM Higgs Discovery at the LHC
• Massive Neutrinos and (Heterotic) String Theory
• A Next-to-Minimal Supersymmetric Model of Hybrid Inflation
• Minimal Mass Matrices for Dirac Neutrinos
• Sequential Dominance
• Neutrinoless double beta decay and direct searches for neutrino mass
• Super-Kamiokande atmospheric neutrino results
• Neutrino Mixing from the Charged Lepton Sector with Sequential Right-Handed Lepton Dominance
• Naturally small Dirac neutrino masses in supergravity
• F-term Hybrid Inflation in Effective Supergravity Theories
• Small Dirac neutrino masses in supersymmetric grand unified theories
• Lepton masses and mixing angles from heterotic orbifold models
• NMSSM Higgs Discovery at the LHC
• D Branes and Textures
• Yukawa Textures, Neutrino Masses and Horava-Witten M-Theory
• Leptogenesis in a Realistic Supersymmetric Model of Inflation with a Low Reheat Temperature
• Alternatives to the seesaw mechanism
• Alternatives to Seesaw
• Phenomenology of Twisted Moduli in Type I String Inspired Models
• Small Yukawa Couplings from Type I String Theory and the Inflationary Solution to the Strong CP and $\mu$ Problems
• Models of inflation and the spectral index of the adiabatic density perturbation
• Inflationary Solution to the Strong CP and $\mu$ Problems
• Twisted Moduli and Supersymmetry Breaking

Cited by in corpus (12)

• The Next-to-Minimal Supersymmetric Standard Model
• Neutrino Mass and Mixing with Discrete Symmetry
• Theory of Neutrinos: A White Paper
• Particle physics models of inflation and curvaton scenarios
• Physics at a future Neutrino Factory and super-beam facility
• Unified Models of Neutrinos, Flavour and CP Violation
• TeV physics and the Planck scale
• Renormalization Group Evolution of Dirac Neutrino Masses
• Neutrino Masses from the Top Down
• Precise predictions for Dirac neutrino mixing
• Five Texture Zeros for Dirac Neutrino Mass Matrices
• Neutrino Mass Models: a road map