Double parton interactions as a background to associated HW production at the Tevatron

Abstract

In this paper we study events with W+jets final state, produced in double parton (DP) interactions, as a background to the associated Higgs boson (H) and W production, with H->bbar decay, at the Tevatron. We have found that the event yield from the DP background can be quite sizable, which necessitates a choice of selection criteria to separate the HW and DP production processes. We suggest a set of variables sensitive to the kinematics of DP and HW events. We show that these variables, being used as an input to the artificial neural network, allow one to significantly improve a sensitivity to the Higgs boson production.

13 pages, 11 figures

References in corpus (9)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Dispelling the N^3 myth for the Kt jet-finder
• Measurement of the inclusive jet cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$
• Multiple Interactions and the Structure of Beam Remnants
• First Measurements of Inclusive W and Z Cross Sections from Run II of the Tevatron Collider
• b-Jet Identification in the D0 Experiment
• Measurement of the dijet invariant mass cross section in proton anti-proton collisions at sqrt{s} = 1.96 TeV
• Search for $WH$ associated production in 5.3 fb${}^{-1}$ of $p\bar{p}$ collisions at the Fermilab Tevatron

Cited by in corpus (19)

• QCD and strongly coupled gauge theories: challenges and perspectives
• 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
• Single Perturbative Splitting Diagrams in Double Parton Scattering
• Double parton correlations in constituent quark models
• Double Parton Correlations in the Bag Model
• Evidence for simultaneous production of $J/\psi$ and ${\rm Y}$ mesons
• Double parton correlations and constituent quark models: a Light Front approach to the valence sector
• Same-sign WW production in proton-nucleus collisions at the LHC as a signal for double parton scattering
• Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• Perturbative and nonperturbative correlations in double parton distributions
• Soft factors for double parton scattering at NNLO
• Extracting sigma_effective from the CDF gamma+3jets measurement
• Calculation of W b bbar Production via Double Parton Scattering at the LHC
• Collisions of protons with light nuclei shed new light on nucleon structure
• Polarization effects in double open-charm production at LHCb
• Double Parton Scattering of Weak Gauge Boson Productions at the 13 TeV and 100 TeV Proton-Proton Colliders
• Production of γγ+ 2jets from double parton scattering in proton-proton collisions at the LHC