NNLL-fast 2.0: Coloured Sparticle Production at the LHC Run 3 with $\sqrt{S}$ = 13.6 TeV
| Autor: | Beenakker, Wim, Borschensky, Christoph, Krämer, Michael, Kulesza, Anna, Laenen, Eric, Mamužić, Judita, Valero, Laura Moreno |
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| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | SciPost Phys. Core 7, 072 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.21468/SciPostPhysCore.7.4.072 |
| Popis: | We report on updated precision predictions for total cross sections of coloured supersymmetric particle production at the LHC with a centre-of-mass energy of $\sqrt S$ = 13.6 TeV, computed with the modern PDF4LHC21 set. The cross sections are calculated at an approximated NNLO accuracy in QCD and contain corrections from the threshold resummation of soft-gluon emission up to NNLL accuracy as well as Coulomb-gluon contributions including bound-state terms. The corrections are found to increase the cross sections and reduce the theoretical uncertainty as compared to the best available fixed-order calculations. These predictions constitute the state-of-the-art calculations and update the existing results for $\sqrt S$ = 13 TeV. We make our new results publicly available in the version 2.0 update to the code package NNLL-fast. Comment: 40 pages, 9 figures; NNLL-fast code available from https://www.uni-muenster.de/Physik.TP/~akule_01/nnllfast; matches version published in SciPost PhysCore |
| Databáze: | arXiv |
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