2006/07/31 by A. Patkós, A. Patkos, Zs. Szép +1 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.1016/j.physletb.2006.09.058
published as Phys.Lett. B642 (2006) 384-388 · 9 pages, uses elsart.cls, version to appear in Phys. Lett. B
arxiv created 2006/09/21 · openalex publication_date 2006/10/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Symmetry breaking solutions are investigated in the N→ ∞ limit for the ground state of a system consisting of a Lorentz-scalar, N component ``phantom'' field and an O(N) singlet. The most general form of O(N) x Z2 invariant quartic interaction is considered. The non-perturbatively renormalised solution demonstrates the possibility for Z2 symmetry breaking induced by phantom fluctuations. It becomes also evident that the strength of the ``internal'' dynamics of the N-component field tunes away the ratio of the Higgs condensate and the Higgs mass from its perturbative (nearly tree-level) expression.