The coefficient turns out to be the Newtonian gravitational constant G.
This gives Newton's "inverse square law" for r > R, but in which we see that the effective Newtonian gravitational constant is [G.sub.N] = (1+ [alpha]/2)G, which is different to the fundamental gravitational constant G in (2).
The expressions in the brackets of (22) and (23) are obtained by substituting the PV expressions for the gravitational constant (G = [e.sup.2.sub.*]/[m.sup.2.sub.*]), the Planck constant ([??]=[e.sup.2.sub.*]/c), and the Compton relation in (8).