2016/04/28 by Aditya Hebbar, G.K. Leontaris, George K. Leontaris +1 · 9 citations
Physics and Astronomy · #Electron #Lepton #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.93.111701
published in Physical review. D/Physical review. D. 93(11) (American Physical Society) · 10 pages, 4 figures
arxiv created 2016/04/28 · openalex publication_date 2016/06/16 · arxiv updated 2016/06/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In supersymmetric E6 the masses of the third family quarks and charged lepton, t\ensuremath-b\ensuremath-\ensuremathτ, as well as the masses of the vectorlike quarks and leptons, D\ensuremath-D and L\ensuremath-L, may arise from the coupling 273\ifmmode×\else\texttimes\fi273\ifmmode×\else\texttimes\fi27H, where 273 and 27H denote the third family matter and Higgs multiplets, respectively. We assume that the SO(10) singlet component in 27H acquires a TeV-scale vacuum expectation value that spontaneously breaks U(1)_\ensuremathψ and provides masses to the vectorlike particles in 273, while the Minimal Supersymmetric Standard Model doublets in 27H provide masses to t, b, and \ensuremathτ. Imposing Yukawa coupling unification ht=hb=h_\ensuremathτ=hD=hL at MGUT and employing the ATLAS and CMS constraints on the Z_\ensuremathψ^\ensuremath' boson mass, we estimate the lower bounds on the third family vectorlike particles D\ensuremath-D and L\ensuremath-L masses to be around 5.85 TeV and 2.9 TeV, respectively. These bounds apply in the supersymmetric limit.