Calculation of W b bbar Production via Double Parton Scattering at the LHC
arXiv:1107.3150 · doi:10.1103/PhysRevD.84.074021
Abstract
We investigate the potential to observe double parton scattering at the Large Hadron Collider in p p -> W b bbar X -> l nu b bbar X at 7 TeV. Our analysis tests the efficacy of several kinematic variables in isolating the double parton process of interest from the single parton process and relevant backgrounds for the first 10 inverse fb of integrated luminosity. These variables are constructed to expose the independent nature of the two subprocesses in double parton scattering, pp -> l nu X and pp -> b bbar X. We use next-to-leading order perturbative predictions for the double parton and single parton scattering components of W b bbar and for the pertinent backgrounds. The next-to-leading order contributions are important for a proper description of some of the observables we compute. We find that the double parton process can be identified and measured with significance S/sqrt(B) ~ 10, provided the double parton scattering effective cross section sigma_{eff} ~ 12 mb.
21 pages, 9 figures; v2: improved presentation and figures, version published in Phys. Rev. D
References in corpus (13)
- Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
- New parton distributions for collider physics
- NLO vector-boson production matched with shower in POWHEG
- Jet pair production in POWHEG
- Theoretical considerations on multiparton interactions in QCD
- A fresh look at double parton scattering
- Search for New Physics via Single Top Production at the LHC
- NLO QCD corrections to W boson production with a massive b-quark jet pair at the Fermilab Tevatron p-pbar collider
- Multiple parton interactions and forward double pion production in pp and dA scattering
- A Double Parton Scattering Background to Associate and Production at the LHC
- Disentangling correlations in Multiple Parton Interactions
- Multiple Parton Interactions, top--antitop and W+4j production at the LHC
- Double parton interactions as a background to associated HW production at the Tevatron
Cited by in corpus (17)
- A QCD Analysis of Double Parton Scattering: Color Correlations, Interference Effects and Evolution
- Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV
- Measurement of the cross-section for W boson production in association with b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
- Cancellation of Glauber gluon exchange in the double Drell-Yan process
- Double parton scattering in double logarithm approximation of perturbative QCD
- Double parton correlations in constituent quark models
- Double Parton Correlations in the Bag Model
- Electroweak boson production in double parton scattering
- How to impose initial conditions for QCD evolution of double parton distributions?
- Measurement of forward , and production in collisions at TeV
- Collisions of protons with light nuclei shed new light on nucleon structure
- Probing impact-parameter dependent nuclear parton densities from double parton scatterings in heavy-ion collisions
- Electroweak Gauge-Boson Production in Association with b Jets at Hadron Colliders
- Double Parton Scattering of Weak Gauge Boson Productions at the 13 TeV and 100 TeV Proton-Proton Colliders
- Double parton scattering in pA collisions at the LHC revisited
- Summary of the Workshop on Multi-Parton Interactions (MPI@LHC 2012)
- LHC Sensitivity to Wbb Production via Double Parton Scattering