NNLO QCD corrections to leptonic observables in top-quark pair production and decay
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Peer-reviewed
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Abstract
We calculate a comprehensive set of spin correlations and differential distributions in top-quark pair production and decay to dilepton final states. This is the first time such a complete study is performed at next-to-next-to leading order in QCD. Both inclusive and fiducial distributions are presented and analyzed. Good agreement between NNLO QCD predictions and data is found. We demonstrate that it is possible to perform high-precision comparisons of fixed-order calculations with fiducial-level data. Subtleties of the top quark definition are raised and clarified. Some of those are found to have a very significant impact on top-quark pair production at absolute threshold.
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Keywords
QCD Phenomenology
Journal Title
Journal of High Energy Physics
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Journal ISSN
1029-8479
1029-8479
1029-8479
Volume Title
2021
Publisher
Springer Science and Business Media LLC
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Sponsorship
European Research Council (683211)
Science and Technology Facilities Council (ST/K004883/1)
Science and Technology Facilities Council (ST/L002760/1)
Science and Technology Facilities Council (ST/M007065/1)
STFC (ST/M007073/1)
STFC (ST/T001550/1)
Science and Technology Facilities Council (ST/K004883/1)
Science and Technology Facilities Council (ST/L002760/1)
Science and Technology Facilities Council (ST/M007065/1)
STFC (ST/M007073/1)
STFC (ST/T001550/1)