@Article{ATLASCollaborationAaboud_etal2019, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Aparisi Pozo, J. A. and Bailey, A. J. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo, F. L. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Escobar, C. and Estrada Pastor, O. and Ferrer, A. and Fiorini, L. and Fullana Torregrosa, E. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Higon-Rodriguez, E. and Jimenez Pena, J. and Lacasta, C. and Lozano Bahilo, J. J. and Madaffari, D. and Mamuzic, J. and Marti-Garcia, S. and Melini, D. and Mi{\~A}{\textpm}ano, M. and Mitsou, V. A. and Rodriguez Bosca, S. and Rodriguez Rodriguez, D. and Ruiz-Martinez, A. and Salt, J. and Santra, A. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="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", journal="Physics Letters B", year="2019", publisher="Elsevier Science Bv", volume="790", pages="595--614", optkeywords="Four-lepton production; Double Drell-Yan; Double parton-scattering; Higgs golden decay channel", abstract="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.", optnote="WOS:000460118200077", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3937), last updated on Wed, 20 Mar 2019 11:55:26 +0000", issn="0370-2693", doi="10.1016/j.physletb.2019.01.062", opturl="https://arxiv.org/abs/1811.11094", opturl="https://doi.org/10.1016/j.physletb.2019.01.062", language="English" }