Double charged heavy constituents of dark atoms and superheavy nuclear objects

摘要

We consider the model of composite dark matter assuming stable particles of charge ? 2 bound with primordial He nuclei by the Coulomb force in O He atoms. We study the capture of such dark atoms in matter and propose the possibility of the existence of stable O -enriched superheavy nuclei and O nuclearites, in which heavy O dark matter fermions are bound by electromagnetic forces with ordinary nuclear matter. O He atoms accumulation in stars and its possible effect on stellar evolution is also considered, extending the set of indirect probes for composite dark matter.