# Are superheavy stable quark clusters viable candidates for the dark matter?

## TL;DR

This paper investigates the viability of superheavy quark clusters as dark matter candidates, analyzing their stability and interaction cross-sections to ensure consistency with experimental observations.

## Contribution

It provides a theoretical analysis of superheavy quark baryons as dark matter candidates within the Spin-Charge-Family framework, focusing on their stability and scattering properties.

## Key findings

- Cross-section for scattering is very small, consistent with experiments.
- Stable superheavy baryons could constitute dark matter if quark mass exceeds 100 TeV.
- Supports the viability of heavy quark clusters as dark matter candidates.

## Abstract

The explanation for the origin of families of quarks and leptons and their properties is one of the most promising ways to understand the assumptions of the Standard Model. The Spin-Charge-Family theory, which does propose the mechanism for the appearance of families and offers an explanation for all the assumptions of the Standard Model, predicts two decoupled groups of four families. The lightest of the upper four families has stable members, which are correspondingly candidates to constitute the dark matter. We study the weak and the "nuclear" (determined by the colour interaction among the heavy fifth family quarks) scattering of such a very heavy baryon by ordinary nucleons in order to show that the cross-section is very small and consistent with the observation in most experiments so far, provided that the quark mass of this baryon is about 100 TeV or above.