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arXiv · 1807.04348

Resonance-aware subtraction in the dipole method

Stefan Höche·Sebastian Liebschner·Frank Siegert
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Abstract

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 ee > WWbb and pp > WWjbjb 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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Stefan Höche, Sebastian Liebschner, Frank Siegert. 2018-07-11. Resonance-aware subtraction in the dipole method. https://doi.org/10.1140/epjc%2Fs10052-019-7212-7

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