Four-dimensional formulation of the sector-improved residue subtraction scheme
By D. Heymes. 2014
183 citations recorded by the source corpus.
Abstract Four years ago, one of us introduced a novel subtraction scheme [1] for the evaluation of double-real radiation contributions to cross sections at next-to-next-to-leading order (NNLO) in QCD. This approach, named SecToR Improved Phase sPacE for Real radiation (STRIPPER), has already found several non-trivial applications. In particular, it has allowed for the determination of NNLO corrections to hadronic top-quark pair production, fully differential top-quark decays, inclusive semileptonic charmless b-quark decays, associated Higgs boson and jet production in gluon fusion, muon decay spin asymmetry, and t-channel single-top production. Common to these calculations was the use of conventional dimensional regularization (CDR). In this publication, we present a complete formulation of the subtraction scheme for arbitrary processes with any number of colored partons in the final state, and up to two partons in the initial state. Furthermore, we modify the integrated subtraction terms of the double-real radiation to enable the introduction of the 't Hooft–Veltman version of dimensional regularization (HV), in which resolved states are four-dimensional. We demonstrate the correctness of our approach on the example of top-quark pair production in the gluon fusion channel.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e65e68034477a1282645eb4813cf49a517412d13
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In Nuclear and High Energy Physics
- Atlas Collaboration
- Cms Collaboration
- Gudrun Heinrich
- M. Schönherr
- A. Larkoski
- Ansgar Denner
- I. Moult
- Stefan Kallweit
Citations in the corpus
- Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, unknown): “Recently formulated in a four-dimensional setting [79].”
- Fully differential NNLO computations with MATRIX (2017, background): “cluster_submit_line[1-99] Lines in cluster submit file to add cluster-specific options.”
- Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, background): “Recently formulated in a four-dimensional setting [144].”
- N-jettiness subtractions for NNLO QCD calculations (2015, methodology): “Over the past decade enormous effort has been devoted to extend such local subtraction methods to NNLO using different approaches [7–38].”