Resonance-aware subtraction in the dipole method
2019
We present a technique for infrared subtraction in next-to-leading order QCD calculations that preserves the virtuality of resonant propagators. The approach is based on the pseudo-dipole subtraction method proposed by Catani and Seymour in the context of identified particle production. As the first applications, we compute the \(e^+e^- \rightarrow W^+W^-b{\bar{b}}\) and \(pp \rightarrow W^+W^-j_bj_b\) cross-section, which are both dominated by top-quark pair production above the threshold. We compare the efficiency of our approach with a calculation performed using the standard dipole subtraction technique.
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