  The nature of a dark matter in the Universe can be connected with realization
of the (plus/minus) Planck mass in final state of the beta-plus-decay of the
nuclei Na-22, Ga-68, etc. and in a gravitational field of sufficient force.
This hypothesis (the topological quantum transition - a generalized
"displacement current") follows out of the phenomenological model that has
explained the anomalies of the orthopositronium, forming in substance by the
beta-decay positrons. Vacuumlike state of substance of the positive mass
(Gliner, 1965) is structured in this model (the "microstructure" of vacuum) as
the long-range "atom" with the Planck mass in the limited macroscopic "volume"
of space-time. Accordingly, the negative mass C-field (Hoyle & Narlikar, 1964)
plays the role of a compensating field.
