Light Neutrinos from a Mini-Seesaw Mechanism in Warped Space
arXiv:1010.2659 · doi:10.1016/j.physletb.2010.12.059
Abstract
The seesaw mechanism provides a simple explanation for the lightness of the known neutrinos. Under the standard assumption of a weak scale Dirac mass and a heavy sterile Majorana scale the neutrino mass is naturally suppressed below the weak scale. However, Nature may employ Dirac and Majorana scales that are much less than typically assumed, possibly even far below the weak scale. In this case the seesaw mechanism alone would not completely explain the lightness of the neutrinos. In this work we consider a warped framework that realizes this possibility by combining naturally suppressed Dirac and Majorana scales together in a mini-seesaw mechanism to generate light neutrino masses. Via the AdS/CFT correspondence the model is dual to a 4D theory with a hidden strongly coupled sector containing light composite right-handed neutrinos.
15 pages, 2 Figs. V3 PLB version (extended discussion, results unchanged)
References in corpus (27)
- A Theory of Dark Matter
- Secluded WIMP Dark Matter
- How to find neutral leptons of the nuMSM?
- The nuMSM, leptonic asymmetries, and properties of singlet fermions
- Gravitational Waves from Warped Spacetime
- A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA
- Natural Neutrino Masses and Mixings from Warped Geometry
- The Little Randall-Sundrum Model at the Large Hadron Collider
- An A4 flavor model for quarks and leptons in warped geometry
- Cosmology of neutrinos and extra light particles after WMAP3
- Neutrino Mass and New Physics
- Warped Deformed Throats have Faster (Electroweak) Phase Transitions
- Low-Energy Signals from Kinetic Mixing with a Warped Abelian Hidden Sector
- A CoGeNT confirmation of the DAMA signal
- Low-Energy Probes of a Warped Extra Dimension
- Neutrino masses, leptogenesis and dark matter in hybrid seesaw
- Composite Dirac Neutrinos
- Holographic Mixing Quantified
- Field Theory on Multi-throat Backgrounds
- Warped Leptogenesis with Dirac Neutrino Masses
- Conformal Neutrinos: an Alternative to the See-saw Mechanism
- Solving problems of 4D minimal SO(10) model in a warped extra dimension
- Natural Realizations of Seesaw in Mini-Warped Minimal SO(10)
- Seesaw in the bulk
- Connections between the Seesaw and Dark Matter Searches
- Broken Symmetry as a Stabilizing Remnant
- Status of Neutrino Theory
Cited by in corpus (6)
- Sterile Neutrinos as the Origin of Dark and Baryonic Matter
- Low-Energy Signals from Kinetic Mixing with a Warped Abelian Hidden Sector
- A Dynamical Framework for KeV Dirac Neutrino Warm Dark Matter
- KeV Warm Dark Matter and Composite Neutrinos
- Neutrino Masses from Low Scale Partial Compositeness
- Composite Dark Matter and Neutrino Masses from a Light Hidden Sector