Can Feynman-Stueckelberg explain cosmological constant problem?

Question

According to the uncertainty principle each Planck sized region of space has a Planck scale amount of momentum associated with it. The energy in that momentum can be converted to particle-antiparticle pairs. According to the standard interpretation each pair has equal and opposite charges so that it can be argued that the charge density of space is zero. According to the Feynman-Stueckelberg interpretation these pairs can also be considered to have equal and opposite masses so that the mass density of space is zero. Would this explain why the Universe does not exponentially increase in size due to zero-point energy?

Comments

Any distance is meaningless by itself; it must be a distance, say, between two particles with the de Broglie lengths much shorter than this distance. Thus, fot two particles with so short de Broglie lengths (hight momentum-enrgie of collision) many other particles may be created. Vacuum itself does not produce anything since it is the ground state with a certain enery equal to zero.