  A non-perturbative quantization of the Yang-Mills energy-mass functional with
a compact semi-simple gauge group entails an infinite discrete energy-mass
spectrum of gauge bosons. The bosonic spectrum is bounded from below, and has a
positive mass gap due to the quartic self-interaction term of pure Yang-Mills
Lagrangian (with no Higgs term involved). This quantization is based on
infinite-dimensional analysis in Kree nuclear triple of sesqui-holomorphic
functionals of initial data for the the non-linear classical Yang-Mills
equations in the temporal gauge.
