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Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV

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arxiv 1312.5729 v2 pith:55FBATYL submitted 2013-12-19 hep-ex

Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV

CMS Collaboration This is my paper
classification hep-ex
keywords doublepartonscatteringcollisionsdetectoreffectiveeventsinvestigated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Double parton scattering is investigated in proton-proton collisions at sqrt(s) = 7 TeV where the final state includes a W boson, which decays into a muon and a neutrino, and two jets. The data sample corresponds to an integrated luminosity of 5 inverse femtobarns, collected with the CMS detector at the LHC. Observables sensitive to double parton scattering are investigated after being corrected for detector effects and selection efficiencies. The fraction of W + 2-jet events due to double parton scattering is measured to be 0.055 +/- 0.002 (stat.) +/- 0.014 (syst.). The effective cross section, sigma[eff], characterizing the effective transverse area of hard partonic interactions in collisions between protons is measured to be 20.7 +/- 0.8 (stat.) +/- 6.6 (syst.) mb.

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Cited by 3 Pith papers

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  1. Momentum fraction and hard scale dependence of double parton scattering in heavy-ion collisions

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    Model predicts final-state-dependent DPS effective cross sections in pPb and PbPb collisions, potentially turning heavy-ion DPS into a probe of transverse hadron and nuclear structure.

  2. Momentum fraction and hard scale dependence of double parton scattering

    hep-ph 2025-06 unverdicted novelty 5.0

    Global fit of an x- and μ-dependent Gaussian model for transverse double parton distributions to LHC and Tevatron data extracts parameters for calculating effective cross sections in other observables.

  3. Valence and sea parton correlations in double parton scattering from data

    hep-ph 2023-05 unverdicted novelty 4.0

    A phenomenological fit to double parton scattering data assumes distinct transverse correlations for valence and sea partons and finds sea pairs more correlated.