A non-standard CP transformation leading to maximal atmospheric neutrino mixing
By W. Grimus, L. Lavoura. 2003
215 citations recorded by the source corpus.
Abstract We discuss a neutrino mass matrix M ν originally found by Babu, Ma, and Valle (BMV) and show that this mass matrix can be characterized by a simple algebraic relation. From this relation it follows that atmospheric neutrino mixing is exactly maximal while at the same time an arbitrary mixing angle θ 13 of the lepton mixing matrix U is allowed and—in the usual phase convention— CP violation in mixing is maximal; moreover, neither the neutrino mass spectrum nor the solar mixing angle are restricted. We put forward a seesaw extension of the Standard Model, with three right-handed neutrinos and three Higgs doublets, where the family lepton numbers are softly broken by the Majorana mass terms of the right-handed neutrino singlets and the BMV mass matrix results from a non-standard CP symmetry.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/0d432d87767db38616a0adcf9924013fad7f11b6
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In Nuclear and High Energy Physics
Citations in the corpus
- Flavor structures of charged fermions and massive neutrinos (2019, unknown): “Then one will be left with Im〈m〉ee , 0 and (or) Im〈m〉μτ , 0, 〈m〉eτ , 〈m〉eμ, or 〈m〉ττ , 〈m〉μμ, respectively [439, 440, 446, 516, 743, 806, 854, 859, 860, 861, 862, 863, 864, 865, 866, 867, 868].”
- Spontaneous CP violation from vacuum alignment in S4 models of leptons (2013, background): “Despite these fundamental studies, there has been only little work on constructing explicit models which realise the idea of combining family and generalised CP symmetries [18–27].”
- CP and discrete flavour symmetries (2012, unknown): “[19–28].”