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RESEARCH PRODUCT
CPT and CP, an entangled couple
Christoph A. TernesGabriela BarenboimMariam Tórtolasubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsFOS: Physical sciences01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)CP violationBeyond Standard Model0103 physical scienceslcsh:QC770-798CP violationNeutrino Physicslcsh:Nuclear and particle physics. Atomic energy. RadioactivityNeutrino010306 general physicsNeutrino oscillationdescription
Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation. On the contrary, a CPT-violating CP-conserving scenario is in perfect agreement with current neutrino oscillation data. Therefore, to elucidate whether T2K results imply CP or CPT violation is of utter importance. We show that, even after combining with data from NO$\nu$A and from reactor experiments, no claims about CP violation can be made. Finally, we update the bounds on CPT violation in the neutrino sector.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-07-01 | Journal of High Energy Physics |