The strong coupling constant

In this paper we fix our attention on hadron structure, and show that also the strong interaction strength alpha(s), ordinarily called the "(perturbat ive) coupling-constant square", call be evaluated within our theory, and fo und to decrease (increase) as the "distance" r decreases (increases). This yields both the confinement of the hadron constituents, and their asymptoti c freedom in qualitative agreement with the experimental evidence. In other terms, our approach leads us, on a purely theoretical ground, to a depende nce of alpha(s) on r which had been previously found only on phenomenologic al and heuristic grounds. We expect the above agreement to be also quantita tive, on the basis of a few checks performed in this work.