Structure of Scalar Mesons f(0)(600), a(0)(980), f(0)(1370) and a(0)(1450)

Abstract

We calculate low-energy meson decay processes and pion-pion scattering lengths in a globally chirally invariant two-flavour linear sigma model exploring the quark content of the scalar mesons f(0)(600) and a(0)(980), as well as f(0)(1370) and a(0)(1450). To this end, we investigate which one of these sets of fields is more likely to contain quark-antiquark states.

arXiv commentPresented at Excited QCD 2010, Tatranska Lomnica, Slovakia, 31.1.-6.2.2010. Six pages, two figures.

References in corpus (12)

• A new look at scalar mesons
• Scalar Quarkonium Masses and Mixing with the Lightest Scalar Glueball
• Vacuum Properties of Mesons in a Linear Sigma Model with Vector Mesons and Global Chiral Invariance
• Toy model for two chiral nonets
• Mixing of scalar tetraquark and quarkonia states in a chiral approach
• Scalar meson and glueball decays within a effective chiral approach
• Strong and electromagnetic decays of the light scalar mesons interpreted as tetraquark states
• A Study in Depth of f0(1370)
• Role of the tetraquark in the chiral phase transition
• Dynamical generation and dynamical reconstruction
• Low energy scattering with a nontrivial pion
• Decay widths of resonances and pion scattering lengths in a globally invariant linear sigma model with vector mesons