2016/07/28 by Junwu Huang, Huang, Junwu, John March-Russell +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1607.08622
openalex publication_date 2016/07/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Maximally Natural Supersymmetry, an unusual weak-scale supersymmetric extension of the Standard Model based upon the inherently higher-dimensional mechanism of Scherk-Schwarz supersymmetry breaking (SSSB), possesses remarkably good fine tuning given present LHC limits. Here we construct a version with precision SU(2)\rm L × U(1)\rm Y unification: sin2 θW(MZ) ≃ 0.231 is predicted to ± 2% by unifying SU(2)\rm L × U(1)\rm Y into a 5D SU(3)\rm EW theory at a Kaluza-Klein scale of 1/R5 ∼ 4.4 \rm TeV, where SSSB is simultaneously realised. Full unification with SU(3)\rm C is accommodated by extending the 5D theory to a N=4 supersymmetric SU(6) gauge theory on a 6D rectangular orbifold at 1/R6 ∼ 40 \rm TeV. TeV-scale states beyond the SM include exotic charged fermions implied by SU(3)\rm EW with masses lighter than ∼ 1.2 \rm TeV, and squarks in the mass range 1.4 \rm TeV - 2.3 \rm TeV, providing distinct signatures and discovery opportunities for LHC run II.