2006/09/14 by C. Hanhart · 22 citations
Mathematics · Physics and Astronomy · #Classical mechanics #Consistency (knowledge bases) #Geometry #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quark #Scalar (mathematics) #Scalar field #Theoretical physics #hep-ph
paper · pdf · doi:10.1140/epja/i2006-10193-6
published in The European Physical Journal A 31(4), 543-548 (Springer Science+Business Media) · 6 pages; invited talk at the IVth International Conference on Quarks and Nuclear Physics (QNP06), Madrid, June 5th-10th 2006
arxiv created 2006/09/14 · openalex publication_date 2007/02/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Although studied for many years the nature of the light scalar mesons remains controversial. Here we shall present a method, applicable for s-wave states located close to a threshold, that allows one to quantify the molecular part of a given state. When applied to the f0(980) a dominance of the molecular component is found. In the second part we show that requirements of field theoretic consistency and chiral symmetry, when applied to the scattering of light pseudo--scalars, naturally lead to the appearance of dynamical poles in the scalar sector. A program is proposed on how to further investigate experimentally the mixing between these dynamical states and possible genuine quark states.