Measurement of the tt¯ γ production cross section in proton-proton collisions at √s=8 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP11(2017)086

Measurement of the tt¯ γ production cross section in proton-proton collisions at √s=8 TeV with the ATLAS detector

The ATLAS collaboration

School of Physics and Astronomy

Mohamed I University
Aix-Marseille Université
University of Oklahoma
Azerbaijan National Academy of Sciences
Université Paris-Sud
University of Toronto
University of California at Santa Cruz
University of Sussex
Technion-Israel Institute of Technology
University of Oregon
Stockholm University
Oskar Klein Centre
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
The University of Tokyo
AGH University of Krakow
Northern Illinois University
Ludwig Maximilian University of Munich
Rutherford Appleton Laboratory
University of Belgrade
Alexandru Ioan Cuza University of Iaşi
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
Boston University
Joint Institute for Nuclear Research
University of Rome Tor Vergata
Kyoto University
Lund University
University of Geneva
RAS - P.N. Lebedev Physics Institute
University of Bologna
University of Victoria BC
Universidad Nacional de La Plata
Radboud University Nijmegen
CERN
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Massachusetts
Weizmann Institute of Science
National Technical University of Athens
Czech Technical University in Prague
University of Salento
The University of Chicago
Columbia University
University of Birmingham
University of Naples Federico II
University of Copenhagen
University of Washington
University of Glasgow
University of Valencia
Lawrence Berkeley National Laboratory
Universidade Federal do Rio de Janeiro
Brandeis University
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University of Coimbra
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University of Sheffield
University of Texas at Austin
Heidelberg University
University of Liverpool
University of Milan
National and Kapodistrian University of Athens
University of Amsterdam
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
Institute for High Energy Physics
University of Pisa
Moscow Engineering Physics Institute
University of California at Irvine
High Energy Accelerator Research Organization, Tsukuba
Michigan State University
Duke University
Royal Holloway University of London
University of Montreal
University of Iowa
Bogazici University
Queen Mary University of London
University of Freiburg
University of Cambridge
University of Bonn
Alikhanov Institute for Theoretical and Experimental Physics
University of Oxford
Johannes Gutenberg University Mainz
German Electron Synchrotron
United States Department of Energy
Comenius University
University of Illinois at Urbana-Champaign
University of Siegen
TRIUMF
CEA Saclay (Commissariat à l'Energie Atomique et aux Energies Alternatives)
University of Rome La Sapienza
Institute of Nuclear Physics Polish Academy of Sciences
Simon Fraser University
Yale University
University of Pennsylvania School of Arts and Sciences
University of Wisconsin-Madison
University of Louisville
University of Wuppertal
University of Melbourne
University of Genoa
Max Planck Institute for Physics (Werner Heisenberg Institute)
SLAC National Accelerator Laboratory
Shanghai Jiao Tong University
University of Science and Technology of China
Universidad Autónoma de Madrid
CAS - Institute of High Energy Physics
Lancaster University
RAS - Saint Petersburg Nuclear Physics Institute
An-Najah National University
California State University Fresno
Ohio State University
Laboratoire de Physique Nucléaire et de Hautes Energies
Tufts University
University of Bern
University of Fribourg
University of Göttingen
University of Warwick
New York University
Bahcesehir University
Gaziantep University
Stony Brook University
University College London
Carleton University
Tel Aviv University
University of Hassan II Casablanca
Uppsala University
University of Grenoble Alpes
Université Grenoble Alpes
Charles University
University of Manchester
University of Pittsburgh
Humboldt University of Berlin
Technische Universität Dresden
The University of Sydney
Argonne National Laboratory
Pontificia Universidad Católica de Chile
Lomonosov Moscow State University
Institute for High Energy Physics
Chinese University of Hong Kong
The University of Hong Kong
Hong Kong University of Science and Technology
Universidad de Buenos Aires
SUNY Albany
Université Clermont Auvergne
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Tokyo Metropolitan University
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Universidad Técnica Federico Santa Maria
Slovak Academy of Sciences
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Tsinghua University
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Ankara University
Indiana University Bloomington
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Roma Tre University
Universidade Federal de Juiz de Fora
Istanbul Bilgi University
Harvard University
University of Udine
Tomsk State University
Iowa State University
Nanjing University
The Collaborative Innovation Center of Quantum Matter (CICQM)
Kobe University
Mohammed V University in Rabat
University of Arizona
National Tsing Hua University
Aristotle University of Thessaloniki
Czech Academy of Sciences
McGill University
Palacký University Olomouc
University of Ljubljana
University of Johannesburg
University of Naples Parthenope
University of British Columbia
Institute of Particle Physics
University of Alberta
Ivane Javakhishvili Tbilisi State University
Universidade Federal de São João del-Rei
Universidade de São Paulo
University of Pavia
Shandong University
Justus Liebig University Giessen
Cadi Ayyad University
Peter the Great St. Petersburg Polytechnic University
City University of New York
Nagasaki Institute of Applied Science
University of the Aegean
University of New Mexico
Council for Scientific and Industrial Research
West University of Timisoara
Louisiana Tech University
ICREA
University of Innsbruck
Southern Methodist University
University of Tsukuba
A. Alikhanian Yerevan Institute of Physics
University of Cape Town
The University of Osaka
Belarus Academy of Sciences
Shinshu University
Institute of Science Tokyo
University of Würzburg
University of the Witwatersrand
Nagoya University
Academia Sinica - Institute of Physics
Belarusian State University
Waseda University
University of Trento
University of Texas at Dallas
Adelaide University
Tbilisi State University
Ilia State University
KTH Royal Institute of Technology
Kyushu University
Georgian Technical University
Ochanomizu University
Manhattan College
Istanbul Aydin University
Universidad Antonio Nariño
California State University Sacramento
Moscow Institute of Physics and Technology
Hiroshima Institute of Technology
Okayama University
University of Minho
Jagiellonian University in Kraków
National Institute for Research and Development of Isotopic and Molecular Technologies
Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Sun Yat-Sen University
Bulgarian Academy of Sciences
TOBB University of Economics and Technology
Kyoto University of Education
York University Toronto
Stanford University
Wigner Research Centre for Physics
Transilvania University of Brasov
Giresun Universitesi
University of Malaya

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The cross section of a top-quark pair produced in association with a photon is measured in proton-proton collisions at a centre-of-mass energy of s=8 TeV with 20.2 fb⁻¹ of data collected by the ATLAS detector at the Large Hadron Collider in 2012. The measurement is performed by selecting events that contain a photon with transverse momentum p_T > 15 GeV, an isolated lepton with large transverse momentum, large missing transverse momentum, and at least four jets, where at least one is identified as originating from a b-quark. The production cross section is measured in a fiducial region close to the selection requirements. It is found to be 139 ± 7 (stat.) ± 17 (syst.) fb, in good agreement with the theoretical prediction at next-to-leading order of 151 ± 24 fb. In addition, differential cross sections in the fiducial region are measured as a function of the transverse momentum and pseudorapidity of the photon.[Figure not available: see fulltext.].

Original language	English
Article number	86
Journal	Journal of High Energy Physics
Volume	2017
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2017)086
State	Published - 1 Nov 2017

Funding

Funders	Funder number
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
Agence Nationale de la Recherche
Australian Research Council
Centre National pour la Recherche Scientifique et Technique
Fundação para a Ciência e a Tecnologia
Comisión Nacional de Investigación Científica y Tecnológica
Narodowe Centrum Nauki
Région Auvergne
CEA-DSM
Japan Society for the Promotion of Science
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Ministry of Science and Technology, Taiwan
Israel Science Foundation
Wallenberg Foundation
Leverhulme Trust
Arizona-Nevada Academy of Science
Javna Agencija za Raziskovalno Dejavnost RS
Generalitat de Catalunya
Instituto Nazionale di Fisica Nucleare
Bundesministerium für Wissenschaft, Forschung und Wirtschaft
Austrian Science Fund
Department of Science and Technology, Ministry of Science and Technology, India
MSMT
MSSR
Marie Sklo dowska-Curie Actions
Ministerio de Economía y Competitividad
Bundesministerium für Bildung und Forschung
Canada Foundation for Innovation
Helmholtz-Gemeinschaft
Danmarks Grundforskningsfond
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Czech Republic
Singapore Eye Research Institute
Canarie
Ontario Innovation Trust
Deutsche Forschungsgemeinschaft
United States-Israel Binational Science Foundation
Neurosurgical Research Foundation
MESTD
U.S. Department of Energy
EU-ESF
RGC
Fundação de Amparo à Pesquisa do Estado de São Paulo
Israeli Centers for Research Excellence
Biomedical Research Foundation
MES of Russia
National Research Center "Kurchatov Institute"
Institutul de Fizică Atomică
Natural Sciences and Engineering Research Council of Canada
General Secretariat for Research and Technology
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science
Fonds Québécois de la Recherche sur la Nature et les Technologies
Canada Council for the Arts
Chinese Academy of Sciences
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
VSC CR
Glycemic Index Foundation
CRC Health Group
Compute Canada
Shota Rustaveli National Science Foundation
MNE
Agencia Nacional de Promoción Científica y Tecnológica
Royal Society
Minerva Foundation
European Research Council
European Regional Development Fund
Ministerstwo Nauki i Szkolnictwa Wyższego
IRFU
Generalitat Valenciana
CERN
Joint Institute for Nuclear Research
Fondation Partager le Savoir
In-vestissements d’Avenir Labex
National Research Council Canada
Alexander von Humboldt-Stiftung
Council on grants of the President of the Russian Federation
Horizon 2020
British Columbia Knowledge Development Fund
Ministry of Education, Culture, Sports, Science and Technology
National Natural Science Foundation of China
Science and Technology Facilities Council	PP/E000347/1, ST/I005846/1, ST/H001093/2, ST/K001361/1, ST/N000331/1, ST/H001158/2, ST/K003666/1, ST/L005662/1, ST/H001093/1, ST/N000447/1, PP/E000452/1, ST/J00488X/1, ST/M006417/1, ST/H001158/1, 1653101, ST/N000277/1, 1659192
DNSRC	IN2P3-CNRS
National Science Foundation	1624739
European Commission	617185

Keywords

Hadron-Hadron scattering (experiments)
Top physics

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10.1007/JHEP11(2017)086

Cite this

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title = "Measurement of the tt¯ γ production cross section in proton-proton collisions at √s=8 TeV with the ATLAS detector",

abstract = "The cross section of a top-quark pair produced in association with a photon is measured in proton-proton collisions at a centre-of-mass energy of s=8 TeV with 20.2 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in 2012. The measurement is performed by selecting events that contain a photon with transverse momentum pT > 15 GeV, an isolated lepton with large transverse momentum, large missing transverse momentum, and at least four jets, where at least one is identified as originating from a b-quark. The production cross section is measured in a fiducial region close to the selection requirements. It is found to be 139 ± 7 (stat.) ± 17 (syst.) fb, in good agreement with the theoretical prediction at next-to-leading order of 151 ± 24 fb. In addition, differential cross sections in the fiducial region are measured as a function of the transverse momentum and pseudorapidity of the photon.[Figure not available: see fulltext.].",

keywords = "Hadron-Hadron scattering (experiments), Top physics",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B. Abeloos and Abidi, \{S. H.\} and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and S. Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, \{A. A.\} and T. Agatonovic-Jovin and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and S. Akatsuka and H. Akerstedt 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 Alderweireldt, \{S. C.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and A. Ashkenazi and L. Barak and G. Bella and Y. Benhammou and T. Cao and E. Etzion and O. Kuprash and Lutz, \{M. S.\} and Y. Oren and M. Pitt and A. Soffer",

note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",

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doi = "10.1007/JHEP11(2017)086",

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T1 - Measurement of the tt¯ γ production cross section in proton-proton 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 - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Akerstedt, H.

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. C.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Ashkenazi, A.

AU - Barak, L.

AU - Bella, G.

AU - Benhammou, Y.

AU - Cao, T.

AU - Etzion, E.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Oren, Y.

AU - Pitt, M.

AU - Soffer, A.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - The cross section of a top-quark pair produced in association with a photon is measured in proton-proton collisions at a centre-of-mass energy of s=8 TeV with 20.2 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in 2012. The measurement is performed by selecting events that contain a photon with transverse momentum pT > 15 GeV, an isolated lepton with large transverse momentum, large missing transverse momentum, and at least four jets, where at least one is identified as originating from a b-quark. The production cross section is measured in a fiducial region close to the selection requirements. It is found to be 139 ± 7 (stat.) ± 17 (syst.) fb, in good agreement with the theoretical prediction at next-to-leading order of 151 ± 24 fb. In addition, differential cross sections in the fiducial region are measured as a function of the transverse momentum and pseudorapidity of the photon.[Figure not available: see fulltext.].

AB - The cross section of a top-quark pair produced in association with a photon is measured in proton-proton collisions at a centre-of-mass energy of s=8 TeV with 20.2 fb−1 of data collected by the ATLAS detector at the Large Hadron Collider in 2012. The measurement is performed by selecting events that contain a photon with transverse momentum pT > 15 GeV, an isolated lepton with large transverse momentum, large missing transverse momentum, and at least four jets, where at least one is identified as originating from a b-quark. The production cross section is measured in a fiducial region close to the selection requirements. It is found to be 139 ± 7 (stat.) ± 17 (syst.) fb, in good agreement with the theoretical prediction at next-to-leading order of 151 ± 24 fb. In addition, differential cross sections in the fiducial region are measured as a function of the transverse momentum and pseudorapidity of the photon.[Figure not available: see fulltext.].

KW - Hadron-Hadron scattering (experiments)

KW - Top physics

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DO - 10.1007/JHEP11(2017)086

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AN - SCOPUS:85035745325

SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 86

ER -

Measurement of the tt¯ γ production cross section in proton-proton collisions at √s=8 TeV with the ATLAS detector

Abstract

Funding

Keywords

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