Neutrino mixing anarchy: Alive and kicking

André de Gouvêa, Hitoshi Murayama*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


Neutrino mixing anarchy is the hypothesis that the leptonic mixing matrix can be described as the result of a random draw from an unbiased distribution of unitary three-by-three matrices. In light of the very strong evidence for a nonzero sin213, we show that the anarchy hypothesis is consistent with the choice made by the Nature - the probability of a more unusual choice is 41%. We revisit anarchy's ability to make predictions, concentrating on correlations - or lack thereof - among the different neutrino mixing parameters, especially sin2 θ13 and sin2 θ23. We also comment on anarchical expectations regarding the magnitude of CP-violation in the lepton sector, and potential connections to underlying flavor models or the landscape.

Original languageEnglish (US)
Pages (from-to)479-483
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - Jul 1 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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