Abstract
The Minimal R-symmetric Supersymmetric Standard Model (MRSSM) provides a realisation of supersymmetry in which the parameter space is less constrained by the current LHC data than in the simplest supersymmetric scenarios. In the present paper, we obtain the most precise theoretical predictions in the MRSSM for squark production at the LHC, enabling accurate interpretations of LHC data in terms of the MRSSM. We perform threshold resummation of soft gluon corrections to the total cross sections for the production of squark-(anti)squark pairs at the LHC in the MRSSM framework. The resummation is carried out using the direct QCD method and reaches the next-to-next-to-leading-logarithmic (NNLL) accuracy, which requires calculating the one-loop matching coefficients in the relevant production channels. The resummed cross sections are then matched to the available NLO results and evaluated for \( \sqrt{S} \) = 13.6 TeV. Compared with the Minimal Supersymmetric Standard Model (MSSM), the cross sections in the MRSSM can be significantly reduced, implying less stringent limits on squark and gluino masses. Our results carry significant implications for exploring the viability of supersymmetry at the LHC. The results of our calculation are publicly available as a numerical package.
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Acknowledgments
WK is supported by the National Science Centre (Poland) grant 2020/38/E/ST2/00126 and by the German Research Foundation (DFG) under grant numbers STO 876/4 and STO 876/2. FF acknowledges support from the DFG Research Training Group “GRK 2149: Strong and Weak Interactions — from Hadrons to Dark Matter” and by the German Research Foundation (DFG) under grant number STO 876/4.
The authors are grateful to the Centre for Information Services and High Performance Computing [Zentrum für Informationsdienste und Hochleistungsrechnen (ZIH)] TU Dresden and to the PALMA HPC cluster of the University of Münster for providing its facilities for high throughput calculations.
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Borschensky, C., Frisenna, F., Kotlarski, W. et al. Squark production with R-symmetry beyond NLO at the LHC. J. High Energ. Phys. 2024, 151 (2024). https://doi.org/10.1007/JHEP05(2024)151
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DOI: https://doi.org/10.1007/JHEP05(2024)151