Four-point amplitudes in $\mathcal{N}=2$ SCQCD

Understand

We compute four-point scattering amplitudes in $\mathcal{N}=2$ SCQCD with general external matter configurations using $\mathcal{N}=1$ superspace Feynman diagrams, at one loop in the general case and up to two loops in the fundamental sector.

• In the pure adjoint sector at one loop we confirm exact agreement with the corresponding amplitudes in $\mathcal{N}=4$ SYM theory, supporting the idea that a closed subsector of the SCQCD might be exactly integrable.
• External matter in the fundamental representation breaks dual conformal invariance already at one loop and also the maximum transcendentality principle at two loops.