2012/10/31 by Satoshi Iso, Yuta Orikasa · 2 citations
Physics and Astronomy · #Electroweak interaction #Electroweak scale #Hierarchy problem #Higgs boson #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Planck #Quantum Chromodynamics and Particle Interactions #Scalar (mathematics) #Standard Model (mathematical formulation) #Symmetry breaking #Technicolor #hep-ph
paper · pdf · doi:10.1093/ptep/pts099
18 pages, 5 figures; report number changed
openalex publication_date 2013/02/01 · arxiv created 2015/05/26 · arxiv updated 2016/06/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The recent discovery of a Higgs-like particle at around 126 GeV has provided a big hint towards the origin of the Higgs potential. In particular, the running quartic coupling vanishes near the Planck scale, which indicates a possible link between the physics in the electroweak and Planck scales. Motivated by this and the hierarchy problem, we investigate a possibility that the Higgs has a flat potential at the Planck scale. In particular, we study the renormalization group analysis of the B − L (baryon number minus lepton number) extension of the standard model [1,2] with classical conformality. The B − L symmetry is radiatively broken at the TeV scale via the Coleman–Weinberg mechanism. The electroweak symmetry breaking is triggered by a radiatively generated scalar mixing so that its scale, 246 GeV, is dynamically related to the B − L breaking scale at the TeV level. The Higgs boson mass is given at the border of the stability bound, which is lowered by a few GeV from the standard model by the effect of the B − L gauge interaction.