Squark production with R-symmetry beyond NLO at the LHC
arXiv:2402.10160 · doi:10.1007/JHEP05(2024)151
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 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.
27 pages, 7 figures, the numerical code package is available from https://www.uni-muenster.de/Physik.TP/~akule_01/nnllfast
References in corpus (21)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- LHAPDF6: parton density access in the LHC precision era
- Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
- Threshold resummation for squark-antisquark and gluino-pair production at the LHC
- SARAH 3.2: Dirac Gauginos, UFO output, and more
- Soft gluon resummation for the production of gluino-gluino and squark-antisquark pairs at the LHC
- GoSam-2.0: a tool for automated one-loop calculations within the Standard Model and beyond
- Flavor in Supersymmetry with an Extended R-symmetry
- Threshold Resummation in Momentum Space from Effective Field Theory
- The PDF4LHC21 combination of global PDF fits for the LHC Run III
- NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation
- Threshold resummation for pair production of coloured heavy (s)particles at hadron colliders
- Color-Octet Scalars of N=2 Supersymmetry at the LHC
- NNLL resummation for squark and gluino production at the LHC
- Higgs boson mass and electroweak observables in the MRSSM
- Precise calculation of the W boson pole mass beyond the Standard Model with FlexibleSUSY
- QCD threshold corrections for gluino pair production at hadron colliders
- Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
- Squark Production and Decay matched with Parton Showers at NLO
- Sgluons in the same-sign lepton searches
- NNLL soft and Coulomb resummation for squark and gluino production at the LHC