2005/03/31 by Alex G. Dias, C. A. de S. Pires, V. Pleitez +1 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1016/j.physletb.2005.06.048
published as Phys.Lett. B621 (2005) 151-159 · 12 pages, typos corrected, improved text, conclusions unchanged
arxiv created 2005/05/13 · openalex publication_date 2005/06/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/02
We show that in SU(3)C⊗SU(3)L⊗U(1)N (3–3–1) models embedded with a singlet scalar playing the role of the axion, after imposing scale invariance, the breaking of Peccei–Quinn symmetry occurs through the one-loop effective potential for the singlet field. We, then, analyze the structure of spontaneous symmetry breaking by studying the new scalar potential for the model, and verify that electroweak symmetry breaking is tightly connected to the 3–3–1 breaking by the strong constraints among their vacuum expectation values. This offers a valuable guide to write down the correct pattern of symmetry breaking for multi-scalar theories. We also obtained that the accompanying massive pseudo-scalar, instead of acquiring mass of order of Peccei–Quinn scale as we would expect, develops a mass at a much lower scale, a consequence solely of the breaking via Coleman–Weinberg mechanism.