Sterile Neutrinos in String Derived Models

Abstract

The MiniBooNE collaboration recently reported further evidence for the existence of sterile neutrinos, implying substantial mixing with the left-handed active neutrinos and at a comparable mass scale. I argue that while sterile neutrinos may arise naturally in large volume string models, they prove more of a challenge in heterotic-string models that replicate the Grand Unified Theory structure of the Standard Model matter states. Sterile neutrinos in heterotic-string models may imply the existence of an additional Abelian gauge symmetry of order 10-100TeV.

18 pages. Standard LaTex. Published version

References in corpus (15)

• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment
• Updated global analysis of neutrino oscillations in the presence of eV-scale sterile neutrinos
• Spinor-Vector Duality in fermionic Z2XZ2 heterotic orbifold models
• Classification of Heterotic Pati-Salam Models
• Z_2 x Z_2 Heterotic Orbifold Models of Non Factorisable Six Dimensional Toroidal Manifolds
• Top Quark Mass in Exophobic Pati--Salam Heterotic String Model
• Classification of Standard-like Heterotic-String Vacua
• Classification of Flipped SU(5) Heterotic-String Vacua
• Spinor-Vector Duality in Heterotic String Orbifolds
• A Light Z' Heterotic-String Derived Model
• Classification of Left-Right Symmetric Heterotic String Vacua
• Three sterile neutrinos in E6
• Wilsonian Dark Matter in String Derived $Z^{\prime }$ Model
• Masses and Mixing of Neutral Leptons in a Grand Unified E_6 Model with Intermediate Pati-Salam Symmetry

Cited by in corpus (3)

• Uncovering a Spinor-Vector Duality on a Resolved Orbifold
• Precision studies for string derived $Z^{\prime }$ dynamics at the LHC
• $Z^{\prime }$s and sterile neutrinos from heterotic string models: exploring $Z^{\prime }$ mass exclusion limits