Finite Theories after the discovery of a Higgs-like boson at the LHC

Abstract

Finite Unified Theories (FUTs) are N = 1 supersymmetric Grand Unified Theories (GUTs) which can be made finite to all-loop orders, based on the principle of reduction of couplings, and therefore are provided with a large predictive power. Confronting the predictions of SU(5) FUTs with the top and bottom quark masses and other low-energy experimental constraints a light Higgs-boson mass in the range M_h ~ 121-126 GeV was predicted, in striking agreement with the recent discovery of a Higgs-like state around ~ 125.7 GeV at ATLAS and CMS. Furthermore the favoured model, a finiteness constrained version of the MSSM, naturally predicts a relatively heavy spectrum with coloured supersymmetric particles above ~ 1.5 TeV, consistent with the non-observation of those particles at the LHC. Restricting further the best FUT's parameter space according to the discovery of a Higgs-like state and B-physics observables we find predictions for the rest of the Higgs masses and the s-spectrum.

17 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:0712.3630

References in corpus (6)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• First evidence for the decay Bs -> mu+ mu-
• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• Confronting Finite Unified Theories with Low-Energy Phenomenology
• Finiteness and the Higgs mass prediction

Cited by in corpus (11)

• Reduction of Couplings and its application in Particle Physics
• Reduction of Couplings in the MSSM
• 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
• Gauge hierarchy problem, supersymmetry and fermionic symmetry
• Probing Unified Theories with Reduced Couplings at Future Hadron Colliders
• Phenomenological Consequences of Supersymmetric Theories from Dimensional Reduction and Reduction of Couplings
• Tera Scale Remnants of Unification and Supersymmetry at Planck Scale
• From Veltman's conditions to Finite Unification