Constraint on the matter–antimatter symmetry-violating phase in neutrino oscillations

Nature, Published online: 15 April 2020; doi:10.1038/s41586-020-2177-0

The T2K experiment constrains CP symmetry in neutrino oscillations, excluding 46% of possible values of the CP violating parameter at a significance of three standard deviations; this is an important milestone to test CP symmetry conservation in leptons and whether the Universe’s matter–antimatter imbalance originates from leptons.
Source: Nature

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