6533b7d3fe1ef96bd1260c52
RESEARCH PRODUCT
CPT Violating Decoherence and LSND: a possible window to Planck scale Physics
Gabriela BarenboimNick E. Mavromatossubject
PhysicsNuclear and High Energy PhysicsParticle physicsAntiparticleQuantum decoherenceOscillationHigh Energy Physics::PhenomenologyFOS: Physical sciencesMinimal modelHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Dark energyQuantum gravityHigh Energy Physics::ExperimentNeutrinoMixing (physics)description
Decoherence has the potential to explain all existing neutrino data including LSND results, without enlarging the neutrino sector. This particular form of CPT violation can preserve the equality of masses and mixing angles between particle and antiparticle sectors, and still provide seizable differences in the oscillation patterns. A simplified minimal model of decoherence is sufficient to explain the existing neutrino data quite neatly, while making dramatic predictions for the upcoming experiments. Some comments on the order of the decoherence parameters in connection with theoretically expected values from some models of quantum-gravity are given. In particular, the quantum gravity decoherence as a primary origin of the neutrino mass differences scenario is explored, and even a speculative link between the neutrino mass-difference scale to the dark energy density component of the Universe today is drawn.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-04-01 |