Finite Unified Theories and the Higgs boson

Abstract

All-loop Finite Unified Theories (FUTs) are very interesting N = 1 supersymmetric Grand Unified Theories (GUTs) realising an old field theory dream, and moreover have a remarkable predictive power due to the required reduction of couplings. Based on this theoretical framework phenomenologically consistent FUTs have been constructed. Here we review two FUT models based on the SU(5) gauge group, which can be seen as special, restricted and thus very predictive versions of the MSSM. We show that from the requirement of correct prediction of quark masses and other experimental constraints a light Higgs-boson mass in the range M_h ~ 121 - 126 GeV is predicted, in striking agreement with recent experimental results from ATLAS and CMS. The model furthermore naturally predicts a relatively heavy spectrum with colored supersymmetric particles above ~ 1.5 TeV in agreement with the non-observation of those particles at the LHC.

13 pages, 5 figures. Proceedings devoted to the Scientific and Human Legacy of Julius Wess, initiated by the JW2011 Workshop, August 27 - 28, 2011, Donji Milanovac, Serbia

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Cited by in corpus (10)

• Reduction of Couplings and its application in Particle Physics
• Finite Theories after the discovery of a Higgs-like boson at the LHC
• The LHC Higgs Boson Discovery: Implications for Finite Unified Theories
• Finite Theories Before and After the Discovery of a Higgs Boson at the LHC
• Updates and New Results in Models with Reduced Couplings
• Reduction of the Parameters in MSSM
• Phenomenological Consequences of Supersymmetric Theories from Dimensional Reduction and Reduction of Couplings
• Probing Unified Theories with Reduced Couplings at Future Hadron Colliders
• Reduction of Couplings in Quantum Field Theories with applications in Finite Theories and the MSSM
• From Veltman's conditions to Finite Unification