QUARK CONFINEMENT DYNAMICS

Starting from Buchmuller's observation that a chromoelectric flux tube meson will exhibit only the Thomas-type spin-orbit interaction, we sh ow that a model built upon the related assumption that a quark feels o nly a constant radial chromoelectric field in its rest frame implies a complete relativistic effective Hamiltonian that can be written expli citly in terms of quark canonical variables. The model yields linear R egge trajectories and exhibits some similarities to scalar confinement , but with the advantage of being more closely linked to QCD.