Composite dark matter from stable charged constituents

TL;DR

This paper explores models where heavy stable charged particles form atomlike states called O-helium, which could explain dark matter and certain astrophysical phenomena like positron excess and experimental detection discrepancies.

Contribution

It introduces the concept of composite dark matter from stable charged constituents, proposing O-helium as a key component and linking it to astrophysical observations and experimental results.

Findings

O-helium can constitute a significant part of dark matter

O-helium may explain the positron excess in the galactic bulge

O-helium could reconcile DAMA positive results with other null experiments

Abstract

Heavy stable charged particles can exist, hidden from us in bound atomlike states. Models with new stable charged leptons and quarks give rise to realistic composite dark matter scenarios. Significant or even dominant component of O-helium (atomlike system of He4 nucleus and heavy -2 charged particle) is inevitable feature of such scenarios. Possible O-helium explanation for the positron excess in the galactic bulge and for the controversy between the positive results of DAMA and negative results of other experiments is proposed.