A SUSY GUT of flavour with S4 × SU(5) to NLO

被引：0
作者：
Claudia Hagedorn
Stephen F. King
Christoph Luhn
机构：
[1] SISSA and INFN-Sezione di Trieste,School of Physics and Astronomy
[2] University of Southampton,undefined
来源：
Journal of High Energy Physics | / 2010卷
关键词：
Beyond Standard Model; Neutrino Physics; GUT; Discrete and Finite Symmetries;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We construct a Supersymmetric (SUSY) Grand Unified Theory (GUT) of Flavour based on S4 × SU(5), together with an additional (global or local) Abelian symmetry, and study it to next-to-leading order (NLO) accuracy. The model includes a successful description of quark and lepton masses and mixing angles at leading order (LO) incorporating the Gatto-Sartori-Tonin (GST) relation and the Georgi-Jarlskog (GJ) relations. We study the vacuum alignment arising from F-terms to NLO and such corrections are shown to have a negligible effect on the results for fermion masses and mixings achieved at LO. Tri-bimaximal (TB) mixing in the neutrino sector is predicted very accurately up to NLO corrections of order 0.1%. Including charged lepton mixing corrections implies small deviations from TB mixing described by a precise sum rule, accurately maximal atmospheric mixing and a reactor mixing angle close to three degrees.
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