2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148061If the dual Meissner effect due to abelian monopole condensation is the quark confinement mechanism of QCD as suggested in recent Monte-Carlo simulations of lattice QCD, new axial-vector and scalar bosons with the mass of O(1GeV) would appear as physical states which are different from ordinary hadrons and glueballs. The axial-vector boson can not decay into ordinary color-singlet hadrons and glueballs owing to a remainig global discrete permutation symmetry with respect to colors (Weyl symmetry) if the vacuum respects the symmetry as suggested from lattice MC simulations.20 Pages, REVTeX; Incorrect expressions are revised and some new descriptions are addedHigh Energy Physics - PhenomenologyHigh Energy Physics - LatticeHigh Energy Physics - Theorytext