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Supersymmetry broken by anomaly mediation suffers from tachyonic sleptonmasses. A possible solution to this problem results in "decoupling", i.e., thefirst two generations of sfermions are much heavier than the third one. We notethat in this scenario a sizable loop-induced contribution to the neutrino massmatrix results. As an application of this scenario we take advantage of thefact that the decoupling evidently not obeys 2-3 generation exchange symmetry.In the neutrino sector, this 2-3 symmetry (or mu-tau symmetry) is a usefulAnsatz to generate zero theta_{13} and maximal theta_{23}. The induceddeviations from these values are given for some examples, thereby linking SUSYbreaking to the small parameters (including possibly the solar mass splitting)of the neutrino sector.Comment: 5 pages, 1 figur

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Supersymmetric contribution to the neutrino mass matrix and breaking of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>μ</mml:mi><mml:mo>–</mml:mo><mml:mi>τ</mml:mi></mml:math>symmetry

Supersymmetric contribution to the neutrino mass matrix and breaking ofμ–τsymmetry