Higher-Order QCD Predictions for Dark Matter Production in Mono-$Z$ Searches at the LHC

Abstract

We present theoretical predictions for mono-$Z$ production in the search for dark matter in Run-II at the LHC, including next-to-leading order QCD corrections and parton-shower effects. We consider generic simplified models with vector and scalar $s$-channel mediators. The calculation is performed by implementing the simplified models in the FeynRules/MadGraph5_aMC@NLO framework, which allows us to include higher-order QCD corrections and parton-shower effects in an automated way. We find that these corrections are sizeable and help to reduce the theoretical uncertainties. We also investigate the discovery potential in several benchmark scenarios in the 13 TeV run at the LHC.

29 pages, 12 figures; v2: references added

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Cited by in corpus (22)

• Review of LHC Dark Matter Searches
• Simplified Models vs. Effective Field Theory Approaches in Dark Matter Searches
• Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• LHC Searches for Dark Sector Showers
• Search for dark matter produced in association with a leptonically decaying Z boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• A comprehensive approach to dark matter studies: exploration of simplified top-philic models
• Constraining new physics with collider measurements of Standard Model signatures
• Simplified dark matter models with a spin-2 mediator at the LHC
• Search for new physics in events with a leptonically decaying Z boson and a large transverse momentum imbalance in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Automated simulations beyond the Standard Model: supersymmetry
• Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
• Non-linear Higgs portal to Dark Matter
• Impact of cosmological and astrophysical constraints on dark matter simplified models
• Actual Physics behind Mono-X
• Robust Limits from Upcoming Neutrino Telescopes and Implications on Minimal Dark Matter Models
• Probing the Dark Sector through Mono-Z Boson Leptonic Decays
• Towards a method to anticipate dark matter signals with deep learning at the LHC
• Constraints on neutrino non-standard interactions from LHC data with large missing transverse momentum
• Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel
• Threshold Resummation for Dark-Matter Production at the LHC
• Boosted and semi-boosted all-hadronic $t\bar{t}$ reconstruction performance on kinematic variables for selected BSM models using a 2D extesion of the BumpHunter algorithm
• Study of semi-boosted top quark reconstruction performance on the line shape of a $t\bar{t}$ resonance