Colour sextet baryons in composite Higgs models

Abstract

Composite Higgs models with underlying fermionic descriptions predict a rich spectrum beyond the Standard Model. Besides the colour triplet fermionic resonances that act as top partners, also exotically coloured baryons can appear. In this contribution we summarise the phenomenology of colour sextet baryons. The dominant decay channel proceeds via a colour octet scalar, resulting in pair production signatures with four or six top quarks. In an alternative mass hierarchy, the sextets produce bottom quarks and a collider-stable colour singlet. We derive recasting bounds on the sextet mass, which reach up to $2.64$ TeV.