Dilaton effective lagrangian in gluodynamics

The paper is aimed at obtaining tree lagrangian which would automatically saturate the usual Ward identities and more general conformal Ward identities. In gluodynamics the lagrangian is constructed describing one scalar field σsub(g) (dilaton) which realizes all Ward identities. Although the mass of σsub(g) is non-vanishing, it seams to be small in the natural mass scale inherent to the scalar gluonic channel