Higher-Order QCD prediction for dark matter pair associated with a b-jet production at the LHC
arXiv:1608.02106
Abstract
Dark matter associated visible particle production at high energy colliders provides a unique way to determine the microscopic properties of the dark matter. We investigate a pair of fermionic dark matter particles associated with a b-jet production at the LHC, through a mediator which couples to standard model or dark matter particles via either a vector or axial-vector coupling. The calculation is performed by implementing these simplified models in the FeynRules/MadGraph5 aMC@NLO framework. In our calculation, next-to-leading order QCD corrections and parton-shower effects are considered. We find that this process has a sizeable cross section and the QCD correction can reach more than 2 times than LO results. We also investigate the discovery potential in several benchmark scenarios at the 13TeV LHC.
arXiv comment13 pages, 5 figures
References in corpus (32)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- Particle Dark Matter: Evidence, Candidates and Constraints
- FeynRules 2.0 - A complete toolbox for tree-level phenomenology
- Matching NLO QCD computations and parton shower simulations
- Dark Matter Results from 225 Live Days of XENON100 Data
- Bounds on Universal Extra Dimensions
- Results from 730 kg days of the CRESST-II Dark Matter Search
- Reducing full one-loop amplitudes to scalar integrals at the integrand level
- Parton distributions with QED corrections
- Search for an Annual Modulation in a P-type Point Contact Germanium Dark Matter Detector
- CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes
- Automation of one-loop QCD corrections
- The WIMPless Miracle: Dark Matter Particles without Weak-scale Masses or Weak Interactions
- Automation of next-to-leading order computations in QCD: the FKS subtraction
- Automatic evaluation of UV and R2 terms for beyond the Standard Model Lagrangians: a proof-of-principle
- Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector
- CoGeNT Interpretations
- Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at sqrt(s)=8 TeV with the ATLAS detector
- Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
- Implications of CoGeNT and DAMA for Light WIMP Dark Matter
- A light scalar WIMP through the Higgs portal and CoGeNT
- Search for dark matter candidates and large extra dimensions in events with a photon and missing transverse momentum in pp collision data at sqrt(s) = 7 TeV with the ATLAS detector
- Probing dark matter couplings to top and bottom at the LHC
- Complex Scalar Dark Matter vis-à-vis CoGeNT, DAMA/LIBRA and XENON100
- Next-to-Leading Order Predictions for Dark Matter Production at Hadron Colliders
- Associated Production of a Z Boson and a Single Heavy-Quark Jet
- Energy Dependence of Direct Detection Cross Section for Asymmetric Mirror Dark Matter
- Light Neutralinos with Large Scattering Cross Sections in the Minimal Supersymmetric Standard Model
- Singlet Fermionic Dark Matter explains DAMA signal
- On Mono-W Signatures in Spin-1 Simplified Models
- Next-to-leading order QCD predictions for the signal of Dark Matter and photon associated production at the LHC
- Searching for the signal of dark matter and photon associated production at the LHC beyond leading order