Scalar Mesons as q̄2q2? Insight from the Lattice
Scalar Mesons as q̄2q2? Insight from the Lattice
I describe some insight obtained from a lattice calculation on the possibility that the light scalar mesons are q̄2q2 states rather than q̄q. First I review some general features of q̄2q2 states in QCD inspired quark models. Then I describe a lattice QCD calculation of pseudoscalar meson scattering amplitudes, ignoring …