Infrared Fixed Points and Fixed Lines for Couplings in the Chiral Lagrangian

2000/09/06 by Mario Atance, Atance, Mario, Barbara Schrempp +2
Mathematics · Physics and Astronomy · #Advanced Algebra and Geometry #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0009069

9 pages, 2 encapsulated postscript figures, uses epsfig.sty; 2 more postscript figures added

openalex publication_date 2000/09/06 · arxiv created 2000/09/25 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the framework of the low energy chiral Lagrangian renormalization group equations for the couplings are investigated up to order p⁶ -- as well for SU(2)xSU(2) as for SU(3)xSU(3) chiral symmetry. Infrared attractive fixed points for ratios of O(p⁴) couplings are found, which turn out to agree with the values determined from experiment in a surprisingly large number of cases. Infrared attractive fixed line solutions for O(p⁶) couplings in terms of O(p⁴) couplings and among O(p⁶) couplings are determined.

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