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https://hdl.handle.net/2440/123782
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Type: | Journal article |
Title: | Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at √s = 8 TeV with the ATLAS detector |
Other Titles: | 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 |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adam, L. Adamczyk, L. Adelman, J. Adersberger, M. Adiguzel, A. Adye, T. et al. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2019; 790:595-614 |
Publisher: | Elsevier |
Issue Date: | 2019 |
ISSN: | 0370-2693 1873-2445 |
Statement of Responsibility: | M. Aaboud … D. Duvnjak … P. Jackson … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration] |
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 < m₄l < 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 ƒDPS=0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb |
Keywords: | Four-lepton production; Double Drell–Yan; Double parton-scattering; Higgs golden decay channel |
Rights: | ©2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP³. |
DOI: | 10.1016/j.physletb.2019.01.062 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.physletb.2019.01.062 |
Appears in Collections: | Aurora harvest 8 Physics publications |
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hdl_123782.pdf | Published version | 1.06 MB | Adobe PDF | View/Open |
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