Skip to main content
eScholarship
Open Access Publications from the University of California

UC Berkeley

UC Berkeley Previously Published Works bannerUC Berkeley

Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at s = 8 TeV with the ATLAS detector

et al.
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 s = 8 TeV. In the four-lepton invariant-mass range of 80 < m 4 ℓ < 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.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Item not freely available? Link broken?
Report a problem accessing this item