6533b7d2fe1ef96bd125f51a

RESEARCH PRODUCT

Neutrinos that violate CPT, and the experiments that love them

Joseph D. LykkenJoseph D. LykkenG. BarenboimL. Borissov

subject

PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)MINOSCP violationHigh Energy Physics::ExperimentNeutrinoAtmospheric neutrinoNeutrino oscillationPhenomenology (particle physics)

description

Recently we proposed a framework for explaining the observed evidence for neutrino oscillations without enlarging the neutrino sector, by introducing CPT violating Dirac masses for the neutrinos. In this paper we continue the exploration of the phenomenology of CPT violation in the neutrino sector. We show that our CPT violating model fits the existing SuperKamiokande data at least as well as the standard atmospheric neutrino oscillation models. We discuss the challenge of measuring CP violation in a neutrino sector that also violates CPT. We point out that the proposed off-axis extension of MINOS looks especially promising in this regard. Finally, we describe a method to compute CPT violating neutrino effects by mocking them up with analog matter effects.

10.1016/s0370-2693(02)01597-6http://dx.doi.org/10.1016/S0370-2693(02)01597-6