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

The ATLAS collaboration

doi:10.1016/j.physletb.2019.01.062

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

The ATLAS collaboration

University Mohammed I
Aix-Marseille University - CNRS
University of Oklahoma
Azerbaijan Academy of Sciences
Laboratoire de l'Accélérateur Linéaire
University of London
University of Toronto
Niels Bohr Institutet
University of Sussex
Tel Aviv University
Technion - Israel Institute of Technology
Argonne National Laboratory
INFN- Sezione di Trieste
ICTP
University of Tokyo
Johannes Gutenberg University
Univ of Mining and Metallurgy
USA
University of Munich
Bogazici University
Rutherford Appleton Laboratory
University of California at Santa Cruz
'Al. I. Cuza' University
LIP - Lisboa
Joint Inst. for Nuclear Research
INFN Sezione di Roma Tor Vergata
University of Rome Tor Vergata
Kyoto University
Lund University
University of Geneva
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
DIBINEM, Alma Mater Studiorum, University of Bologna
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
University of Victoria
INFN, Laboratori Nazionali Di Frascati
Universidad Nacional de la Plata
Radboud University Nijmegen
European Organization for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Humboldt-Universität zu Berlin
National Technical University of Athens
Czech Technical University in Prague
INFN Sezione di Milano
University of Chicago
University of Washington
University of Oregon
New York University
University of Sheffield
University of Birmingham
INFN Sezione di Napoli
Università di Napoli Federico II
University of Glasgow
University of Valencia
University of California at Berkeley
Federal University of Rio de Janeiro
McGill University and Génome Québec Innovation Centre
University of Oxford
Brandeis University
University of Michigan, Ann Arbor
Coimbra University Pó lo II
Deutsches Elektronen-Synchrotron (DESY)
Iowa State University
University Paris-Sud
University of Texas at Austin
Heidelberg University
University of Bern
University of Milan
LAIC, Université d'Auvergne
University of Amsterdam
Columbia University
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
SNS and INFN
University of California, Irvine
Sezione INFN di Roma La Sapienza
High Energy Accelerator Research Organization (KEK)
Michigan State University
Duke University
Université de Montréal
Iowa University
Queen Mary University of London
University of Cambridge
University of Bonn
ITEP
Broad Institute of Harvard University
Uppsala University
Brookhaven National Laboratory
Comenius University
University of Cape Town
University of Illinois at Urbana-Champaign
University of Siegen
University of Science and Technology of China
Institute of High Energy Physics Chinese Academy of Science
York University
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
University of Salento
Universita La Sapienza
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Simon Fraser University
Yale University
University of Texas at Arlington
University of Sydney
Weizmann Institute of Science Israel
University of Pennsylvania School of Arts and Sciences
University of Wisconsin-Madison
Bergische Universität Wuppertal
University of Melbourne
University of Genova
Sezione INFN di Genova
Max-Planck-Institut für Physik
Stanford University
Shanghai Jiao Tong University
Universidad Autónoma de Madrid
Department of Physics, Lancaster University
National Research Centre "Kurchatov Institute"
University Mohammed V in Rabat
Ohio State University
Centre de Recherche Institut du Cerveau et de la Moelle
Tufts University
Georg August Universität Göttingen
University of Freiburg
University of Gaziantep
Bahcesehir University
SUNY
Medical University Innsbruck
University College London
Carleton University
University of Athens
National Research Nuclear University MEPhI
Hassan II University of Casablanca
University of Grenoble Alpes
University of Arizona
University of Massachusetts Amherst
Stockholm University
Oskar Klein Centre
University of Manchester
University of Pittsburgh
University of Pisa
Technische Universität Dresden
Boston University
Pontificia Universidad Católica de Chile
Moscow State University
University of Liverpool
Institute for High Energy Physics (IHEP)
Dept. d'Estructura I Constituents De La Matèria and IFAE
University of Buenos Aires
University of Johannesburg
Tokyo Metropolitan University
Universidad Técnica Federico Santa María
Institute of Experimental Physics Slovak Academy of Sciences
University of Bergen
University of Oslo
pro3dure medical GmbH
Academia Sinica Taipei
University at Albany
Ankara University School of Medicine
Indiana University Bloomington
Oklahoma State University
Universite della Calabria
Charles University
PT Government Associated Laboratory, University of Minho
Istanbul Bilgi University
Sez. di Roma Tre
Universidade Federal de Juiz de Fora
Tbilisi State University
TRIUMF
Nanjing University
Tsinghua University
Kobe University
Chinese University of Hong Kong
University of Chinese Academy of Sciences
National Tsing Hua University
Aristotle University of Thessaloniki
Institute of Physics of the Czech Academy of Sciences
Palacky University
Univ. of Ljubljana
University of Edinburgh
Univ.́ degli Studi di Udine
University of British Columbia
Shandong University
University of Alberta
Federal University of São João Del Rei
University of São Paulo
Justus-Liebig-Universität Gießen
University of Adelaide
Faculté Des Sciences-Semlalia
University of Warwick
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
University of Pavia
Southern Methodist University
INFN-TIFPA
University of Trento
Nagasaki Institute of Applied Science
University of Lisboa
West University in Timisoara
Louisiana Tech University
University of New Mexico
Tsukuba University
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Würzburg
Natl. Academy of Sciences of Belarus
Shinshu University
University of the Witwatersrand, Johannesburg
Osaka University
Nagoya University
Institute for Nuclear Problems of the Belarus State University
Tokyo Institute of Technology
University of Texas at Dallas
Javakhishvili Tbilisi State University
Waseda University
Kyushu University
Tomsk State University
University of Belgrade
Istanbul Aydin University (IAU)
Hong Kong University of Science and Technology
University of Hong Kong
Universidad Antonio Nariño
Center for Autonomous Systems
Centro de Física Nuclear Universidade de Lisboa
Hiroshima Institute of Technology
Okayama University
Jagiellonian University
National Institute for R&D of Isotopic and Molecular Technologies
University Politehnica of Bucharest
CNRS/IN2P3 and Université Paris 11
TOBB University of Economics and Technology
Kyoto University of Education
Transilvania University of Brasov

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48 Scopus citations

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_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.

Original language	English
Pages (from-to)	595-614
Number of pages	20
Journal	Physics Letters B
Volume	790
DOIs	https://doi.org/10.1016/j.physletb.2019.01.062
State	Published - 1 Jan 2019
Externally published	Yes

Keywords

Double Drell–Yan
Double parton-scattering
Four-lepton production
Higgs golden decay channel

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10.1016/j.physletb.2019.01.062

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@article{5762c31f26ee4fd78484248d7a8743b3,

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",

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 804ℓ<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 fDPS=0.042, which results in an estimated lower limit on the effective cross section at 95\% confidence level of 1.0 mb.",

keywords = "Double Drell–Yan, Double parton-scattering, Four-lepton production, Higgs golden decay channel",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B. Abeloos and Abhayasinghe, \{D. K.\} and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adam and L. Adamczyk and J. Adelman and M. Adersberger and A. Adiguzel and T. Adye and Affolder, \{A. A.\} and Y. Afik and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and F. Ahmadov and G. Aielli and S. Akatsuka and {\AA}kesson, \{T. P.A.\} and E. Akilli and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and \{Alconada Verzini\}, \{M. J.\} and S. Alderweireldt and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and D. Alexandre and T. Alexopoulos and M. Alhroob and B. Ali and G. Alimonti and J. Alison and Alkire, \{S. P.\} and C. Allaire and Allbrooke, \{B. M.M.\} and Allen, \{B. W.\} and L. Heinrich and E. Kourlitis",

note = "Publisher Copyright: {\textcopyright} 2019 The Author(s)",

year = "2019",

month = jan,

day = "1",

doi = "10.1016/j.physletb.2019.01.062",

language = "English",

volume = "790",

pages = "595--614",

journal = "Physics Letters B",

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T1 - Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at √s=8 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adam, L.

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexandre, D.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Alimonti, G.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allaire, C.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Heinrich, L.

AU - Kourlitis, E.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - 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 804ℓ<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 fDPS=0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.

AB - 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 804ℓ<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 fDPS=0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.

KW - Double Drell–Yan

KW - Double parton-scattering

KW - Four-lepton production

KW - Higgs golden decay channel

UR - https://www.scopus.com/pages/publications/85061429419

U2 - 10.1016/j.physletb.2019.01.062

DO - 10.1016/j.physletb.2019.01.062

M3 - Article

AN - SCOPUS:85061429419

SN - 0370-2693

VL - 790

SP - 595

EP - 614

JO - Physics Letters B

JF - Physics Letters B

ER -

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

Abstract

Keywords

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