2019/11/22 by Christopher T. Hill, Hill, Christopher T. · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #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.1911.10223
openalex publication_date 2019/11/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider multi-Higgs-doublet models which, for symmetry reasons, have a universal Higgs-Yukawa (HY) coupling, g. This is identified with the top quark g=gt≈ 1. The models are concordant with the quasi-infrared fixed point, and the top quark mass is correctly predicted with a compositeness scale (Landau pole) at Mplanck, with sensitivity to heavier Higgs states. The observed Higgs boson is a tt composite, and a first sequential Higgs doublet, Hb, with g≈ gt≈ 1 coupled to bR(t,b)L is predicted at a mass 3.0 \lesssim Mb \lesssim 5.5 TeV and accessible to LHC and its upgrades. This would explain the mass of the b-quark, and the tachyonic SM Higgs boson mass2. The flavor texture problem is no longer associated with the HY couplings, but rather is determined by the inverted multi-Higgs boson mass spectrum, e.g., the lightest fermions are associated with heaviest Higgs bosons and vice versa. The theory is no less technically natural than the standard model. The discovery of Hb at the LHC would confirm the general compositeness idea of Higgs bosons and anticipate additional states potentially accessible to the 100 TeV pp machine.