Double charged heavy constituents of dark atoms and superheavy nuclear objects

TL;DR

This paper explores a model of composite dark matter involving stable charged particles bound with helium nuclei, proposing the existence of superheavy nuclei and nuclearites enriched with these particles, and examines their potential effects in stellar evolution.

Contribution

It introduces a novel model of dark matter with charged constituents forming bound states with helium and explores the implications for superheavy nuclei and stellar processes.

Findings

Possible existence of stable O-enriched superheavy nuclei.

Potential formation of O-nuclearites with electromagnetic binding.

Impact of OHe atoms on stellar evolution processes.

Abstract

We consider the model of composite dark matter assuming stable particles of charge $-2$ bound with primordial helium nuclei by Coulomb force in $O$He atoms. We study capture of such dark atoms in matter and propose a possibility of 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 in stellar evolution is also considered, extending the set of indirect probes for composite dark matter.