%0 Journal Article %T Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at root s=8 TeV with the ATLAS detector %A ATLAS Collaboration (Aaboud, M. et al %A Alvarez Piqueras, D. %A Aparisi Pozo, J. A. %A Bailey, A. J. %A Barranco Navarro, L. %A Cabrera Urban, S. %A Castillo, F. L. %A Castillo Gimenez, V. %A Cerda Alberich, L. %A Costa, M. J. %A Escobar, C. %A Estrada Pastor, O. %A Ferrer, A. %A Fiorini, L. %A Fullana Torregrosa, E. %A Fuster, J. %A Garcia, C. %A Garcia Navarro, J. E. %A Gonzalez de la Hoz, S. %A Higon-Rodriguez, E. %A Jimenez Pena, J. %A Lacasta, C. %A Lozano Bahilo, J. J. %A Madaffari, D. %A Mamuzic, J. %A Marti-Garcia, S. %A Melini, D. %A Miñano, M. %A Mitsou, V. A. %A Rodriguez Bosca, S. %A Rodriguez Rodriguez, D. %A Ruiz-Martinez, A. %A Salt, J. %A Santra, A. %A Soldevila, U. %A Sanchez, J. %A Valero, A. %A Valls Ferrer, J. A. %A Vos, M. %J Physics Letters B %D 2019 %V 790 %I Elsevier Science Bv %@ 0370-2693 %G English %F ATLASCollaborationAaboud_etal2019 %O WOS:000460118200077 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3937), last updated on Wed, 20 Mar 2019 11:55:26 +0000 %X The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb(-1) of data recorded in the ATLAS detector at the LHC at centre-of-mass energy root s = 8 TeV. In the four-lepton invariant-mass range of 80 < m(4l) < 1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f(DPS) = 0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb. %K Four-lepton production %K Double Drell-Yan %K Double parton-scattering %K Higgs golden decay channel %R 10.1016/j.physletb.2019.01.062 %U https://arxiv.org/abs/1811.11094 %U https://doi.org/10.1016/j.physletb.2019.01.062 %P 595-614