Next-to-Next-to-Leading Order Event Generation for Top-Quark Pair Production.
| Autor: | Mazzitelli J; Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München, Germany., Monni PF; CERN, Theoretical Physics Department, CH-1211 Geneva 23, Switzerland., Nason P; Università di Milano Bicocca and INFN, Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy., Re E; LAPTh, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, 74940 Annecy, France., Wiesemann M; Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München, Germany., Zanderighi G; Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München, Germany. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2021 Aug 06; Vol. 127 (6), pp. 062001. |
| DOI: | 10.1103/PhysRevLett.127.062001 |
| Abstrakt: | The production of top-quark pairs in hadronic collisions is among the most important reactions in modern particle physics phenomenology and constitutes an instrumental avenue to study the properties of the heaviest quark observed in nature. The analysis of this process at the Large Hadron Collider relies heavily on Monte Carlo simulations of the final state events, whose accuracy is challenged by the outstanding precision of experimental measurements. In this Letter we present the first matched computation of top-quark pair production at next-to-next-to-leading order in QCD with all-order radiative corrections as implemented via parton-shower simulations. Besides its intrinsic relevance for LHC phenomenology, this work also establishes an important step towards the simulation of other hadronic processes with color charges in the final state. |
| Databáze: | MEDLINE |
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