Single Cut Integration

Understand

We present an analytic technique for evaluating single cuts for one-loop integrands, where exactly one propagator is taken to be on shell.

• Our method extends the double-cut integration formalism of one-loop amplitudes to the single-cut case.
• We argue that single cuts give meaningful information about amplitudes when taken at the integrand level.
• We discuss applications to the computation of tadpole coefficients.