Coulomb gauge approach to scalar hadrons

摘要

The Coulomb gauge model, involving an effective QCD Hamiltonian in theCoulomb gauge, is applied to scalar hadrons. Mass predictions are presented forboth conventional q-qbar meson and q-qbar-q-qbar tetra-quark states. Mixingmatrix elements between these states were also computed and diagonalized toprovide a reasonable description of the scalar spectrum below 2 GeV.