Abstract
We present updated predictions for the cross-sections for pair production of squarks and gluinos at the LHC Run II. First of all, we update the calculations based on NLO+NLL partonic cross-sections by using the NNPDF3.0NLO global analysis. This study includes a full characterization of theoretical uncertainties from higher orders, PDFs and the strong coupling. Then, we explore the implications for this calculation of the recent NNPDF3.0 PDFs with NLO+NLL threshold resummation. We find that the shift in the results induced by the threshold-improved PDFs is within the total theory uncertainty band of the calculation based on NLO PDFs. However, we also observe that the central values of the cross-sections are modified both in a qualitative and a quantitative way, illustrating the relevance and impact of using threshold-improved PDFs together with resummed partonic cross-sections. The updated NLO+NLL cross-sections based on NNPDF3.0NLO are publicly available in the NLL-fast format, and should be an important ingredient for the interpretation of the searches for supersymmetric particles at Run II.
Original language | English |
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Article number | 53 |
Number of pages | 23 |
Journal | European Physical Journal C. Particles and Fields |
Volume | 76 |
Issue number | 2 |
DOIs | |
Publication status | Published - 28 Jan 2016 |
Bibliographical note
23 pages, 8 figures. The updated NLL-fast grids with NNPDF3.0NLO can be obtained from http://pauli.uni-muenster.de/~akule_01/nllwiki/index.php/NLL-fast. Accepted for publication in EPJCKeywords
- hep-ph
- hep-ex