Flavour models for TM1 lepton mixing

Abstract

We present a framework for lepton flavour models such that the first column of the lepton mixing matrix is (2,-1,-1)/sqrt(6). We show that the flavour symmetry group adequate for this purpose is S4. Our models are based on a vacuum alignment that can be obtained in a supersymmetric framework.

Comments: 23 pages, 5 figures. v2: references added. v3: accepted by J. Phys. G