tusenfem

Either r or 2r produces a constant, I changed to 2r on realizing that de Broglie's wavelength is equal to 2r.
Throughout all my web pages over eighteen years I have always referred to the force as the vacuum force.
The units used (ev and fermi) are those used by the experimenters when reporting their results. This is good enough for the international Particle Data Group and therefore I see no cause for change.
The points you make about velocity and momentum are perfectly valid, this lead me to look for an alternative solution which you will find on my web page. As you are allergic to pop-ups and do not use a pop-up blocker; the new equation, found (using algebraic symbols) is:

mass x wavelength
----------------------------- = 1
linear (vacuum) force constant

This can be confirmed numerically using table 4. and applies equally to all velocities and momentum values.
elas