Ghost condensation and CPT violation in neutrino sector
arXiv:1009.1251 · doi:10.1016/j.physletb.2011.01.014
Abstract
We consider CPT violation in neutrino sector, which is induced by ghost condensation. A model with extra dimension is suggested where ghost condensation occurs at a distant location separated from the SM brane. Right handed neutrinos in the bulk, which are originally introduced to explain small Yukawa couplings, play the role of messenger fields communicating ghost condensation and the standard model sector and lead to a sizable CPT violation in neutrino sector at the leading order. The model provides a resolution to the recent MINOS anomaly without spoiling any experimental constraints and may be able to be tested by observing an interesting phenomenon, twinkling cosmic microwave background radiation, with timescale about O(10-100) minutes at future CMB observations e.g. Planck.
arXiv comment11 pages, 1 figures
References in corpus (18)
- A Large Mass Hierarchy from a Small Extra Dimension
- CPT Violation and the Standard Model
- Neutrino masses and mixings in non-factorizable geometry
- Ghost Condensation and a Consistent Infrared Modification of Gravity
- Neutrino Masses from Large Extra Dimensions
- CPT Violation Implies Violation of Lorentz Invariance
- LSND, SN1987A, and CPT Violation
- A Search for Lorentz Invariance and CPT Violation with the MINOS Far Detector
- Universal Dynamics of Spontaneous Lorentz Violation and a New Spin-Dependent Inverse-Square Law Force
- Dynamics of Gravity in a Higgs Phase
- Split-UED and Dark Matter
- MINOS and CPT-violating neutrinos
- CPT Tests: Kaon vs Neutrinos
- Apparent CPT Violation in Neutrino Oscillation Experiments
- Neutrino mass from a hidden world and its phenomenological implications
- Laboratory bounds on Lorentz symmetry violation in low energy neutrino physics
- Neutrino Constraints on Spontaneous Lorentz Violation
- Ghost Dark Matter