Four-Fermion Limit of Gauge-Yukawa Theories

Understand

We elucidate and extend the conditions that map gauge-Yukawa theories at low energies into time-honoured gauged four-fermion interactions at high energies.

• These compositeness conditions permit to investigate theories of composite dynamics through gauge-Yukawa theories.
• Here we investigate whether perturbative gauge-Yukawa theories can have a strongly coupled limit at high-energy, that can be mapped into a four-fermion theory.
• Interestingly, we are able to precisely carve out a region of the perturbative parameter space supporting such a composite limit.