Amelioration of the little hierarchy problem inSU(4)c×SU(2)L×SU(2)R

2009/07/03 by Ilia Gogoladze, Mansoor Ur Rehman, Qaisar Shafi · 4 citations
Mathematics · Physics and Astronomy · #Algorithm #Black Holes and Theoretical Physics #Combinatorics #Computer science #Electroweak interaction #Higgs boson #Machine learning #Mathematics #Minimal Supersymmetric Standard Model #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Supersymmetry #Symmetry breaking #hep-ph

paper · pdf · doi:10.1103/physrevd.80.105002

published as Phys.Rev.D80:105002,2009 · 14 pages, 5 figures, 2 tables

arxiv created 2009/07/03 · openalex publication_date 2009/11/05 · arxiv updated 2009/12/01 · openalex created_date 2017/05/26 · openalex updated_date 2026/08/05

Abstract

The little hierarchy problem encountered in the constrained minimal supersymmetric model can be ameliorated in supersymmetric models based on the gauge symmetry G₄₂₂\ensuremath≡SU(4)_c\ifmmode×\else\texttimes\fiSU(2)_L\ifmmode×\else\texttimes\fiSU(2)_R. The standard assumption in the constrained minimal supersymmetric model [and in SU(5) and SO(10)] of universal gaugino masses can be relaxed in SU(4)_c\ifmmode×\else\texttimes\fiSU(2)_L\ifmmode×\else\texttimes\fiSU(2)_R, and this leads to a significant improvement in the degree of fine-tuning required to implement radiative electroweak breaking in the presence of a characteristic supersymmetry breaking scale of around a TeV. Examples of Higgs and sparticle mass spectra realized with 10% fine-tuning are presented.

Citations

• No-scale solution to little hierarchy
• Relaxed fine-tuning in models with nonuniversal gaugino masses
• Re-examination of electroweak symmetry breaking in supersymmetry and implications for light superpartners
• SPARTICLE MASS SPECTRUM IN GRAND UNIFIED THEORIES
• Proton decay, supersymmetry breaking and its mediation
• Lepton number as the fourth "color"
• Living dangerously with low-energy supersymmetry
• Higgs boson mass, sparticle spectrum, and the little hierarchy problem in an extended MSSM
• Search for the Standard Model Higgs boson at LEP

Cited by

• Supersymmetric SU(5) grand unification for a post Higgs boson era
• Improving naturalness in gauge mediation with nonunified messenger sectors
• Nonuniversal gaugino masses, the supersymmetric little hierarchy problem, and dark matter
• Natural MSSM after the LHC 8 TeV run

Related

• A solution to the little hierarchy problem in a partly N=2 extension of the MSSM
• Little hierarchies solve the little fine-tuning problem: a case study in supersymmetry with heavy guinos
• Beyond the MSSM
• Supersymmetry with Small mu: Connections between Naturalness, Dark Matter, and (Possibly) Flavor
• Electroweak symmetry breaking by a neutral sector: Dynamical relaxation of the little hierarchy problem