Minimal supergravity radiative effects on the tri-bimaximal neutrino mixing pattern

Details Minimal supergravity radiative effects on the tri-bimaximal neutrino mixing pattern Minimal supergravity radiative effects on the tri-bimaximal neutrino mixing pattern

2006-06-07

arxiv.org/abs/hep-ph/0606082v3

Phys.Rev.D75:053006,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures; added reference; final version for publication

Scientific paper

10.1103/PhysRevD.75.053006

We study the stability of the Harrison-Perkins-Scott (HPS) mixing pattern, assumed to hold at some high energy scale, against supersymmetric radiative corrections. We work in the framework of a reference minimal supergravity model (mSUGRA) where supersymmetry breaking is universal and flavor-blind at unification. The radiative corrections considered include both RGE running as well as threshold effects. We find that in this case the solar mixing angle can only increase with respect to the HPS reference value, while the atmospheric and reactor mixing angles remain essentially stable. Deviations from the solar angle HPS prediction towards lower values would signal novel contributions from physics beyond the simplest mSUGRA model.

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