Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1088/1367-2630/15/3/033038

Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector

The ATLAS collaboration

University of Freiburg
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Azerbaijan National Academy of Sciences
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Brookhaven National Laboratory
Hampton University
Yale University
Ludwig Maximilian University of Munich
Queen Mary University of London
Didcot
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University of Bern
Boston University
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University of Texas at Dallas
University of Rome Tor Vergata
Lund University
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P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Royal Holloway University of London
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Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
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University of Milan
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
Humboldt University of Berlin
University of Pennsylvania
University of Birmingham
Lancaster University
Kobe University
University of Liverpool
University of Glasgow
University of Manchester
University of Naples Federico II
Weizmann Institute of Science
University of Copenhagen
Instituto de Física La Plata
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High Energy Accelerator Research Organization, Tsukuba
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
University of Lisbon
Heidelberg University
The University of Chicago
National and Kapodistrian University of Athens
Technische Universität Dresden
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
National Institute for Nuclear Physics
Moscow Engineering Physics Institute
Slovak Academy of Sciences
University of Rome La Sapienza
Nagoya University
Aix-Marseille Université and CNRS/IN2P3
Université Savoie Mont Blanc
University of Oxford
SLAC National Accelerator Laboratory
Duke University
University of Montreal
German Electron Synchrotron
Bogazici University
University of Michigan, Ann Arbor
Johannes Gutenberg University Mainz
Universidad Autónoma de Madrid
Alikhanov Institute for Theoretical and Experimental Physics
University of Cambridge
Stockholm University
The Oskar Klein Centre
Argonne National Laboratory
University of Johannesburg
Comenius University
University of Illinois at Urbana-Champaign
Czech Technical University in Prague
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Aristotle University of Thessaloniki
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Max Planck Institute for Physics (Werner Heisenberg Institute)
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Laboratoire de Physique Nucléaire et de Hautes Energies
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Radboud University Nijmegen
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Kyoto University of Education
Ritsumeikan University
Massachusetts Institute of Technology
Turkish Atomic Energy Authority
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Belarusian State University
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200 引用（Scopus）

摘要

The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb^-1, collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f^(D) _DP, has been measured through the p_T balance between the two jets and amounts to f^(D) _DP = 0.08 ±0.01 (stat.)±0.02 (sys.) for jets with transverse momentum p_T > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σ_eff = 15 ± 3 (stat.) ⁺⁵ _-3 (sys.) mb.

源语言	英语
文章编号	033038
期刊	New Journal of Physics
卷	15
期	3
DOI	https://doi.org/10.1088/1367-2630/15/3/033038
出版状态	已出版 - 25 3月 2013
已对外发布	是

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@article{9203cbcdefb74e51b69e0873d6e45e92,

title = "Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector",

abstract = "The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(D) DP, has been measured through the pT balance between the two jets and amounts to f(D) DP = 0.08 ±0.01 (stat.)±0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 -3 (sys.) mb.",

author = "\{The ATLAS collaboration\} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and Abdelalim, \{A. A.\} and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and Ochoa, \{M. I.\} and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alam, \{M. A.\} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, \{I. N.\} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and J. Alison and Allbrooke, \{B. M.M.\} and Allison, \{L. J.\} and L. Yuan",

note = "Publisher Copyright: {\textcopyright} CERN 2013 for the benefit of the ATLAS Collaboration.",

year = "2013",

month = mar,

day = "25",

doi = "10.1088/1367-2630/15/3/033038",

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T1 - Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdelalim, A. A.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Ochoa, M. I.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Allbrooke, B. M.M.

AU - Allison, L. J.

AU - Yuan, L.

PY - 2013/3/25

Y1 - 2013/3/25

N2 - The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(D) DP, has been measured through the pT balance between the two jets and amounts to f(D) DP = 0.08 ±0.01 (stat.)±0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 -3 (sys.) mb.

AB - The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb-1, collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(D) DP, has been measured through the pT balance between the two jets and amounts to f(D) DP = 0.08 ±0.01 (stat.)±0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity |y| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 -3 (sys.) mb.

UR - https://www.scopus.com/pages/publications/84973468811

U2 - 10.1088/1367-2630/15/3/033038

DO - 10.1088/1367-2630/15/3/033038

M3 - 文章

AN - SCOPUS:84973468811

SN - 1367-2630

VL - 15

JO - New Journal of Physics

JF - New Journal of Physics

IS - 3

M1 - 033038

ER -

Measurement of hard double-parton interactions in W(→ lν) + 2-jet events at √s = 7 TeV with the ATLAS detector

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