Simple loop integrals and amplitudes in N=4 SYM

Understand

We use momentum twistors to evaluate planar loop integrals.

• Infrared divergences are regulated by the recently proposed AdS-inspired mass regulator.
• We show that two-loop amplitudes in N=4 super Yang-Mills can be expanded in terms of basis integrals having twistor numerators.
• We argue that these integrals are considerably simpler compared to the ones conventionally used.