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Trimaximal mixingTrimaximal mixing ^{[1]} (also known as threefold maximal mixing ^{[2]}) refers to the highly symmetric, maximally CPviolating, fermion mixing configuration, characterised by a unitary matrix (U) having all its elements equal in modulus (, a,i = 1,2,3) as may be written, e.g.: Additional recommended knowledgewhere ω = exp(i2π / 3) and are the complex cube roots of unity. In the standard PDG ^{[3]} convention, trimaximal mixing corresponds to: θ_{12} = θ_{23} = π / 4, and δ = π / 2. The Jarlskog CPviolating parameter J ^{[4]} takes its extremal value . Originally proposed as a candidate lepton mixing matrix ^{[5]} ^{[6]}, and actively studied ^{[1]} ^{[2]} ^{[7]} ^{[8]} as such (and even as a candidate quark mixing matrix ^{[9]}), trimaximal mixing is now definitively ruledout as a phenomenologically viable lepton mixing scheme by neutrino oscillation experiments, especially the CHOOZ reactor experiment ^{[10]}, in favour of the (related) tribimaximal mixing ^{[11]} scheme. References

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Trimaximal_mixing". A list of authors is available in Wikipedia. 