Abstract
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.
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Britto, R., Mirabella, E. Single cut integration. J. High Energ. Phys. 2011, 135 (2011). https://doi.org/10.1007/JHEP01(2011)135
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DOI: https://doi.org/10.1007/JHEP01(2011)135