Radiative corrections to the composite Higgs mass from a gluon partner

Understand

In composite Higgs models light fermionic top partners often play an important role in obtaining a 126 GeV Higgs mass.

• The presence of these top partners implies that coloured vector mesons, or massive gluon partners, most likely exist.
• Since the coupling between the top partners and gluon partners can be large there are then sizeable two-loop contributions to the composite Higgs mass.
• We compute the radiative correction to the Higgs mass from a gluon partner in the minimal composite Higgs model and show that the Higgs mass is in fact reduced.