Measurement of the double parton scattering in W + 2 jets production at √s = 7 TeV with the ATLAS detector

Miroslav Myska

doi:10.1051/epjconf/20136020013

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 60, 20013 (2013)
https://doi.org/10.1051/epjconf/20136020013

Measurement of the double parton scattering in W + 2 jets production at √s = 7 TeV with the ATLAS detector

Miroslav Myska^a on behalf of the ATLAS Collaboration

Czech Technical University in Prague, FNSPE, Brehova 7, 11519, Prague, Czech Republic

^a e-mail: miroslav.myska@fjfi.cvut.cz

Abstract

The presence of the double parton scattering in proton-proton collisions at √s = 7 TeV has been measured by the ATLAS detector at the LHC. The analyzed dataset corresponds to an integrated luminosity of 36 pb⁻¹. The process under study is the production of a W boson in association with exactly two jets. W boson decays in either the electron or muon channel. The fraction of double parton scattering events was found to be 0.08±0.01(stat.)±0.02(syst.) for jets with transverse momentum p_T > 20 GeV and rapidity |y| < 2.8. The double parton scattering scaling factor σ_eff was evaluated to 15±3(stat.)_-3⁺⁵(syst.).

© Owned by the authors, published by EDP Sciences, 2013

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