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Independent and analytic estimates of the two-quark and two-gluon bound states have been performed within a relativistic quantum-field model in the presence of analytic confinement. The ladder Bethe-Salpeter equation is solved for the spectra of two-gluon and two-quark bound states by involving a minimal set of physical parameters (the quark masses, the coupling constant and the confinement scale). The model provides a reasonable framework to compute data simultaneously in three sectors of low-energy particle physics, namely, the lowest glueball mass, the conventional meson masses (from π(140) up to ϒ(9460)), and the pion and kaon weak decay constants. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

Analytic confinement: the glueball and meson masses, and the weak decay constants