2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174336We present a model for odd-$C$ (negative charge parity) glueballs with three constituent gluons. The model is an extension of a previous study of two-gluon glueballs. We show that, even if spin-1 gluons seem to reproduce properly the lattice QCD spectrum for $C=+$ states, the extension for $C=-$ cannot match with the lattice results. Resorting to the helicity formalism, we show how transverse gluons fit in better agreement the lattice QCD spectrum.Invited talk at 'Selected Problems of Modern Theoretical Physics', Dubna June 23-27 2008. Talk at 'Confinement 8', Mainz, September 1-6 2008High Energy Physics - Phenomenologytext