https://doi.org/10.1140/epjc/s10052-019-6849-6
Regular Article - Experimental Physics
Measurements of inclusive and differential fiducial cross-sections of 
production in leptonic final states at 
in ATLAS
1
Department of Physics, University of Adelaide, Adelaide, Australia
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Physics Department, SUNY Albany, Albany, NY, USA
3
Department of Physics, University of Alberta, Edmonton, AB, Canada
4
Department of Physics, Ankara University, Ankara, Turkey
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Istanbul Aydin University, Istanbul, Turkey
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Division of Physics, TOBB University of Economics and Technology, Ankara, Turkey
7
LAPP, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS/IN2P3, Annecy, France
8
High Energy Physics Division, Argonne National Laboratory, Argonne, IL, USA
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Department of Physics, University of Arizona, Tucson, AZ, USA
10
Department of Physics, University of Texas at Arlington, Arlington, TX, USA
11
Physics Department, National and Kapodistrian University of Athens, Athens, Greece
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Physics Department, National Technical University of Athens, Zografou, Greece
13
Department of Physics, University of Texas at Austin, Austin, TX, USA
14
Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey
15
Faculty of Engineering and Natural Sciences, Istanbul Bilgi University, Istanbul, Turkey
16
Department of Physics, Bogazici University, Istanbul, Turkey
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Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey
18
Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
19
Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology, Barcelona, Spain
20
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
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Physics Department, Tsinghua University, Beijing, China
22
Department of Physics, Nanjing University, Nanjing, China
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University of Chinese Academy of Science (UCAS), Beijing, China
24
Institute of Physics, University of Belgrade, Belgrade, Serbia
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Department for Physics and Technology, University of Bergen, Bergen, Norway
26
Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA, USA
27
Institut für Physik, Humboldt Universität zu Berlin, Berlin, Germany
28
Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland
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School of Physics and Astronomy, University of Birmingham, Birmingham, UK
30
Facultad de Ciencias y Centro de Investigaciónes, Universidad Antonio Nariño, Bogota, Colombia
31
Dipartimento di Fisica, INFN Bologna and Universita’ di Bologna, Bologna, Italy
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INFN Sezione di Bologna, Bologna, Italy
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Physikalisches Institut, Universität Bonn, Bonn, Germany
34
Department of Physics, Boston University, Boston, MA, USA
35
Department of Physics, Brandeis University, Waltham, MA, USA
36
Transilvania University of Brasov, Brasov, Romania
37
Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania
38
Department of Physics, Alexandru Ioan Cuza University of Iasi, Iasi, Romania
39
Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
40
University Politehnica Bucharest, Bucharest, Romania
41
West University in Timisoara, Timisoara, Romania
42
Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovakia
43
Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic
44
Physics Department, Brookhaven National Laboratory, Upton, NY, USA
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Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina
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California State University, Long Beach, CA, USA
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Cavendish Laboratory, University of Cambridge, Cambridge, UK
48
Department of Physics, University of Cape Town, Cape Town, South Africa
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Department of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South Africa
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School of Physics, University of the Witwatersrand, Johannesburg, South Africa
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Department of Physics, Carleton University, Ottawa, ON, Canada
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Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco
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Faculté des Sciences, Université Ibn-Tofail, Kenitra, Morocco
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Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Marrakech, Morocco
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Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco
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Faculté des sciences, Université Mohammed V, Rabat, Morocco
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CERN, Geneva, Switzerland
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Enrico Fermi Institute, University of Chicago, Chicago, IL, USA
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LPC, Université Clermont Auvergne, CNRS/IN2P3, Clermont-Ferrand, France
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Nevis Laboratory, Columbia University, Irvington, NY, USA
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Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
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Dipartimento di Fisica, Università della Calabria, Rende, Italy
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INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Frascati, Italy
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Physics Department, Southern Methodist University, Dallas, TX, USA
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Physics Department, University of Texas at Dallas, Richardson, TX, USA
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Department of Physics, Stockholm University, Stockholm, Sweden
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Oskar Klein Centre, Stockholm, Sweden
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Deutsches Elektronen-Synchrotron DESY, Hamburg and Zeuthen, Germany
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Lehrstuhl für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany
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Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
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Department of Physics, Duke University, Durham, NC, USA
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SUPA-School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
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INFN e Laboratori Nazionali di Frascati, Frascati, Italy
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Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
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II. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany
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Département de Physique Nucléaire et Corpusculaire, Université de Genève, Geneva, Switzerland
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Dipartimento di Fisica, Università di Genova, Genoa, Italy
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INFN Sezione di Genova, Genoa, Italy
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II. Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany
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SUPA-School of Physics and Astronomy, University of Glasgow, Glasgow, UK
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LPSC, Université Grenoble Alpes, CNRS/IN2P3, Grenoble INP, Grenoble, France
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Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA, USA
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Department of Modern Physics and State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China
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Institute of Frontier and Interdisciplinary Science and Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Qingdao, China
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School of Physics and Astronomy, Shanghai Jiao Tong University, KLPPAC-MoE, SKLPPC, Shanghai, China
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Tsung-Dao Lee Institute, Shanghai, China
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Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
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Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
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Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan
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Department of Physics, Chinese University of Hong Kong, Shatin, N.T., Hong Kong
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Department of Physics, University of Hong Kong, Hong Kong, China
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Department of Physics and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
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Department of Physics, Indiana University, Bloomington, IN, USA
95
INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
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ICTP, Trieste, Italy
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Dipartimento Politecnico di Ingegneria e Architettura, Università di Udine, Udine, Italy
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INFN Sezione di Lecce, Lecce, Italy
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Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy
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INFN Sezione di Milano, Milan, Italy
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Dipartimento di Fisica, Università di Milano, Milan, Italy
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INFN Sezione di Napoli, Naples, Italy
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Dipartimento di Fisica, Università di Napoli, Naples, Italy
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INFN Sezione di Pavia, Pavia, Italy
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Dipartimento di Fisica, Università di Pavia, Pavia, Italy
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INFN Sezione di Pisa, Pisa, Italy
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Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy
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INFN Sezione di Roma, Rome, Italy
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Dipartimento di Fisica, Sapienza Università di Roma, Rome, Italy
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INFN Sezione di Roma Tor Vergata, Rome, Italy
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Dipartimento di Fisica, Università di Roma Tor Vergata, Rome, Italy
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INFN Sezione di Roma Tre, Rome, Italy
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Dipartimento di Matematica e Fisica, Università Roma Tre, Rome, Italy
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INFN-TIFPA, Povo, Italy
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Università degli Studi di Trento, Trento, Italy
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Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria
117
University of Iowa, Iowa City, IA, USA
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Department of Physics and Astronomy, Iowa State University, Ames, IA, USA
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Joint Institute for Nuclear Research, Dubna, Russia
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Departamento de Engenharia Elétrica, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, Brazil
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Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
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Universidade Federal de São João del Rei (UFSJ), São João del Rei, Brazil
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Instituto de Física, Universidade de São Paulo, São Paulo, Brazil
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KEK, High Energy Accelerator Research Organization, Tsukuba, Japan
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Graduate School of Science, Kobe University, Kobe, Japan
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Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Krakow, Poland
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Marian Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland
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Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
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Faculty of Science, Kyoto University, Kyoto, Japan
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Kyoto University of Education, Kyoto, Japan
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Research Center for Advanced Particle Physics and Department of Physics, Kyushu University, Fukuoka, Japan
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Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
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Physics Department, Lancaster University, Lancaster, UK
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Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK
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Department of Experimental Particle Physics, Jožef Stefan Institute and Department of Physics, University of Ljubljana, Ljubljana, Slovenia
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School of Physics and Astronomy, Queen Mary University of London, London, UK
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Department of Physics, Royal Holloway University of London, Egham, UK
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Department of Physics and Astronomy, University College London, London, UK
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Louisiana Tech University, Ruston, LA, USA
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Fysiska institutionen, Lunds universitet, Lund, Sweden
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Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules (IN2P3), Villeurbanne, France
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Departamento de Física Teorica C-15 and CIAFF, Universidad Autónoma de Madrid, Madrid, Spain
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Institut für Physik, Universität Mainz, Mainz, Germany
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School of Physics and Astronomy, University of Manchester, Manchester, UK
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CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
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Department of Physics, University of Massachusetts, Amherst, MA, USA
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Department of Physics, McGill University, Montreal, QC, Canada
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School of Physics, University of Melbourne, Victoria, Australia
149
Department of Physics, University of Michigan, Ann Arbor, MI, USA
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Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
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B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
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Research Institute for Nuclear Problems of Byelorussian State University, Minsk, Belarus
153
Group of Particle Physics, University of Montreal, Montreal, QC, Canada
154
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia
155
Institute for Theoretical and Experimental Physics of the National Research Centre Kurchatov Institute, Moscow, Russia
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National Research Nuclear University MEPhI, Moscow, Russia
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D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, Moscow, Russia
158
Fakultät für Physik, Ludwig-Maximilians-Universität München, Munich, Germany
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Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Munich, Germany
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Nagasaki Institute of Applied Science, Nagasaki, Japan
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Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan
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Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
163
Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, The Netherlands
164
Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, The Netherlands
165
Department of Physics, Northern Illinois University, DeKalb, IL, USA
166
Budker Institute of Nuclear Physics and NSU, SB RAS, Novosibirsk, Russia
167
Novosibirsk State University, Novosibirsk, Russia
168
Institute for High Energy Physics of the National Research Centre Kurchatov Institute, Protvino, Russia
169
Department of Physics, New York University, New York, NY, USA
170
Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, Japan
171
Ohio State University, Columbus, OH, USA
172
Faculty of Science, Okayama University, Okayama, Japan
173
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, USA
174
Department of Physics, Oklahoma State University, Stillwater, OK, USA
175
Palacký University, RCPTM, Joint Laboratory of Optics, Olomouc, Czech Republic
176
Center for High Energy Physics, University of Oregon, Eugene, OR, USA
177
LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France
178
Graduate School of Science, Osaka University, Osaka, Japan
179
Department of Physics, University of Oslo, Oslo, Norway
180
Department of Physics, Oxford University, Oxford, UK
181
LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France
182
Department of Physics, University of Pennsylvania, Philadelphia, PA, USA
183
Konstantinov Nuclear Physics Institute of National Research Centre “Kurchatov Institute”, PNPI, St. Petersburg, Russia
184
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, USA
185
Laboratório de Instrumentação e Física Experimental de Partículas - LIP, Lisbon, Portugal
186
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
187
Departamento de Física, Universidade de Coimbra, Coimbra, Portugal
188
Centro de Física Nuclear da Universidade de Lisboa, Lisbon, Portugal
189
Departamento de Física, Universidade do Minho, Braga, Portugal
190
Universidad de Granada, Granada, Spain
191
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
192
Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
193
Czech Technical University in Prague, Prague, Czech Republic
194
Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
195
Particle Physics Department, Rutherford Appleton Laboratory, Didcot, UK
196
IRFU, CEA, Université Paris-Saclay, Gif-sur-Yvette, France
197
Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, USA
198
Departamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
199
Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
200
Department of Physics, University of Washington, Seattle, WA, USA
201
Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
202
Department of Physics, Shinshu University, Nagano, Japan
203
Department Physik, Universität Siegen, Siegen, Germany
204
Department of Physics, Simon Fraser University, Burnaby, BC, Canada
205
SLAC National Accelerator Laboratory, Stanford, CA, USA
206
Physics Department, Royal Institute of Technology, Stockholm, Sweden
207
Departments of Physics and Astronomy, Stony Brook University, Stony Brook, NY, USA
208
Department of Physics and Astronomy, University of Sussex, Brighton, UK
209
School of Physics, University of Sydney, Sydney, Australia
210
Institute of Physics, Academia Sinica, Taipei, Taiwan
211
E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia
212
High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia
213
Department of Physics, Technion, Israel Institute of Technology, Haifa, Israel
214
Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
215
Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
216
International Center for Elementary Particle Physics and Department of Physics, University of Tokyo, Tokyo, Japan
217
Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan
218
Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
219
Tomsk State University, Tomsk, Russia
220
Department of Physics, University of Toronto, Toronto, ON, Canada
221
TRIUMF, Vancouver, BC, Canada
222
Department of Physics and Astronomy, York University, Toronto, ON, Canada
223
Division of Physics and Tomonaga Center for the History of the Universe, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
224
Department of Physics and Astronomy, Tufts University, Medford, MA, USA
225
Department of Physics and Astronomy, University of California Irvine, Irvine, CA, USA
226
Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden
227
Department of Physics, University of Illinois, Urbana, IL, USA
228
Instituto de Física Corpuscular (IFIC), Centro Mixto Universidad de Valencia - CSIC, Valencia, Spain
229
Department of Physics, University of British Columbia, Vancouver, BC, Canada
230
Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
231
Fakultät für Physik und Astronomie, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
232
Department of Physics, University of Warwick, Coventry, UK
233
Waseda University, Tokyo, Japan
234
Department of Particle Physics, Weizmann Institute of Science, Rehovot, Israel
235
Department of Physics, University of Wisconsin, Madison, WI, USA
236
Fakultät für Mathematik und Naturwissenschaften, Fachgruppe Physik, Bergische Universität Wuppertal, Wuppertal, Germany
237
Department of Physics, Yale University, New Haven, CT, USA
238
Yerevan Physics Institute, Yerevan, Armenia
239
CERN, 1211, Geneva 23, Switzerland
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Received:
6
December
2018
Accepted:
1
April
2019
Published online:
3
May
2019
Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 
, collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 
. The measurements are performed in single-lepton and dilepton final states in a fiducial volume. Events with exactly one photon, one or two leptons, a channel-dependent minimum number of jets, and at least one b-jet are selected. Neural network algorithms are used to separate the signal from the backgrounds. The fiducial cross-sections are measured to be 
and 
for the single-lepton and dilepton channels, respectively. The differential cross-sections are measured as a function of photon transverse momentum, photon absolute pseudorapidity, and angular distance between the photon and its closest lepton in both channels, as well as azimuthal opening angle and absolute pseudorapidity difference between the two leptons in the dilepton channel. All measurements are in agreement with the theoretical predictions.
© CERN for the benefit of the ATLAS collaboration, 2019
