Colour-octet bound states, induced by Higgs mechanism

TL;DR

This paper investigates how Higgs-induced attraction between heavy fourth-generation quarks can lead to the formation of colour octet bound states, which may resemble a nuclear structure with potential implications for particle physics.

Contribution

It introduces the concept of Higgs mechanism-induced attraction forming colour octet bound states of heavy quarks, expanding understanding of quark interactions at high masses.

Findings

Higgs-induced attraction exceeds strong force at 500 GeV quark masses.

Formation of small, nucleus-like bound states of heavy quarks.

Potential for new particle structures similar to Deuterium.

Abstract

The current limits for fourth generation quarks allows to expect their mass of the order of 500 GeV. In this mass region for quark-anti-quark pair the additional Yukawa-type attraction due to Higgs mechanism is expected to emerge. This Higgs induced attraction greatly exceeds strong interaction between quarks and leads to the formation of bound states in both colour octet $S^{(8)}$ and singlet $S^{(1)}$ states. In the key of recent works on significance of colour octet channel for production of colour singlet state of fourth generation $Q\bar{Q}$ we calculated the binding energies for both octet and singlet states. Such attraction localizes quarks in extremely small area. Hence colour octet pair of fourth generation quarks can form the "nucleus" and together with colour neutralizing light particle that is captured by strong interaction in orbit around the nucleus, create particle, similar by its structure to Deuterium.