Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector - Archive ouverte HAL Access content directly
Journal Articles New Journal of Physics Year : 2013

Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector

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G. Aad
Y. Coadou
S. Calvet
N. Berger
C. Goy
T. Hryn'Ova
E. Augé
D. Rousseau
Zhiqing Zhang
  • Function : Author
  • PersonId : 829631

Abstract

The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of sqrt(s)=7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36/pb, collected with the ATLAS detector at the LHC. The fraction of events arising from double-parton interactions, fDP(D) has been measured through the momentum balance between the two jets and amounts to fDP(D) = 0.08 +- 0.01 (stat.) +- 0.02 (sys) for jets with transverse momentum PT > 20 GeV and rapidity |y|<2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of \sigma_eff = 15 +- 3 (stat.) +5 -3 (sys.) mb.

Dates and versions

in2p3-00782526 , version 1 (30-01-2013)

Identifiers

Cite

G. Aad, S. Aoun, M. Barbero, C. P. Bee, C. Bertella, et al.. Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector. New Journal of Physics, 2013, 15, pp.033038. ⟨10.1088/1367-2630/15/3/033038⟩. ⟨in2p3-00782526⟩
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