Next-to-leading-order QCD corrections and parton-shower effects for weakino+squark production at the LHC
arXiv:2110.04211 · doi:10.1007/JHEP12(2021)020
Abstract
We present a calculation of the next-to-leading order QCD corrections to weakino+squark production processes at hadron colliders and their implementation in the framework of the POWHEG-BOX, a tool for the matching of fixed-order perturbative calculations with parton-shower programs. Particular care is taken in the subtraction of on-shell resonances in the real-emission corrections that have to be assigned to production processes of a different type. In order to illustrate the capabilities of our code, representative results are shown for selected SUSY parameter points in the pMSSM11. The perturbative stability of the calculation is assessed for the process. For the squark+chargino production process distributions of the chargino's decay products are provided with the help of the decay feature of PYTHIA 8.
arXiv comment26 pages, 13 figures, version accepted by JHEP
References in corpus (49)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- The anti-k_t jet clustering algorithm
- An Introduction to PYTHIA 8.2
- A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
- A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
- Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
- Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
- Automatized One-Loop Calculations in 4 and D dimensions
- Generating Feynman Diagrams and Amplitudes with FeynArts 3
- LHAPDF6: parton density access in the LHC precision era
- New parton distribution functions from a global analysis of quantum chromodynamics
- Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
- MadGraph/MadEvent v4: The New Web Generation
- Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC collision data at 7 and 8 TeV
- Measurement of the Negative Muon Anomalous Magnetic Moment to 0.7 ppm
- Three-jet cross sections to next-to-leading order
- Single-top Wt-channel production matched with parton showers using the POWHEG method
- Automatic Generation of Tree Level Helicity Amplitudes
- A standard format for Les Houches Event Files
- Stop Production at Hadron Colliders
- The Production of Charginos/Neutralinos and Sleptons at Hadron Colliders
- SUSY Les Houches Accord 2
- Squark and gluino hadroproduction
- Soft-gluon resummation for squark and gluino hadroproduction
- PROSPINO: A Program for the Production of Supersymmetric Particles in Next-to-leading Order QCD
- Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
- Regularization Dependence of Running Couplings in Softly Broken Supersymmetry
- Supersymmetric top and bottom squark production at hadron colliders
- Search for new physics in final states with an energetic jet or a hadronically decaying W or Z boson and transverse momentum imbalance at 13 TeV
- NNLL-fast: predictions for coloured supersymmetric particle production at the LHC with threshold and Coulomb resummation
- Likelihood Analysis of the pMSSM11 in Light of LHC 13-TeV Data
- NNLL resummation for squark and gluino production at the LHC
- NNLL resummation for squark-antisquark pair production at the LHC
- Squark Production at the Tevatron
- NNLL resummation for stop pair-production at the LHC
- The Implementation of the Renormalized Complex MSSM in FeynArts and FormCalc
- Gluino-Pair Production at the Tevatron
- Regularization and supersymmetry-restoring counterterms in supersymmetric QCD
- Automized Squark-Neutralino Production to Next-to-Leading Order
- Matching Squark Pair Production at NLO with Parton Showers
- NLO corrections to squark-squark production and decay at the LHC
- Squark Production and Decay matched with Parton Showers at NLO
- Supersymmetric Monojets at the Large Hadron Collider
- Higgs and SUSY Particle Production at Hadron Colliders
- Electroweakino pair production at the LHC: NLO SUSY-QCD corrections and parton-shower effects
- Precise predictions for electroweakino-pair production in association with a jet at the LHC