Decay widths of resonances and pion scattering lengths in a globally invariant linear sigma model with vector mesons

Abstract

We calculate low-energy meson decay processes and pion-pion scattering lengths in a two-flavour linear sigma model with global chiral symmetry, exploring the scenario in which the scalar mesons $f_0$(600) and $a_0$(980) are assumed to be $\bar{q}q$ states.

Talk at the 8th Conference on Quark Confinement and the Hadron Spectrum, Mainz (Germany), 1-6 September 2008; 6 pages

References in corpus (7)

• Mixing of scalar tetraquark and quarkonia states in a chiral approach
• Strong and electromagnetic decays of the light scalar mesons interpreted as tetraquark states
• Role of the tetraquark in the chiral phase transition
• Vector and axialvector mesons at nonzero temperature within a gauged linear sigma model
• Low energy scattering with a nontrivial pion
• How Universal is the Coupling in the Sigma Model?
• Two-photon decay of light scalars: a comparison of tetraquark and quarkonium assignments

Cited by in corpus (1)

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