https://doi.org/10.1140/epjc/s10052-013-2676-3
Regular Article - Experimental Physics
Measurement of jet shapes in top-quark pair events at
using the ATLAS detector
1
CERN, 1211, Geneva 23, Switzerland
2
School of Chemistry and Physics, University of Adelaide, Adelaide, Australia
3
Physics Department, SUNY Albany, Albany, NY, United States of America
4
Department of Physics, University of Alberta, Edmonton, AB, Canada
5
Department of Physics, Ankara University, Ankara, Turkey
6
Department of Physics, Gazi University, Ankara, Turkey
7
Division of Physics, TOBB University of Economics and Technology, Ankara, Turkey
8
Turkish Atomic Energy Authority, Ankara, Turkey
9
LAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, France
10
High Energy Physics Division, Argonne National Laboratory, Argonne, IL, United States of America
11
Department of Physics, University of Arizona, Tucson, AZ, United States of America
12
Department of Physics, The University of Texas at Arlington, Arlington, TX, United States of America
13
Physics Department, University of Athens, Athens, Greece
14
Physics Department, National Technical University of Athens, Zografou, Greece
15
Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan
16
Institut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona, Barcelona, Spain
17
Institute of Physics, University of Belgrade, Belgrade, Serbia
18
Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
19
Department for Physics and Technology, University of Bergen, Bergen, Norway
20
Physics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA, United States of America
21
Department of Physics, Humboldt University, Berlin, Germany
22
Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, Switzerland
23
School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom
24
Department of Physics, Bogazici University, Istanbul, Turkey
25
Department of Physics, Dogus University, Istanbul, Turkey
26
Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey
27
INFN Sezione di Bologna, Bologna, Italy
28
Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy
29
Physikalisches Institut, University of Bonn, Bonn, Germany
30
Department of Physics, Boston University, Boston, MA, United States of America
31
Department of Physics, Brandeis University, Waltham, MA, United States of America
32
Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
33
Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
34
Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil
35
Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil
36
Physics Department, Brookhaven National Laboratory, Upton, NY, United States of America
37
National Institute of Physics and Nuclear Engineering, Bucharest, Romania
38
Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj Napoca, Romania
39
University Politehnica Bucharest, Bucharest, Romania
40
West University in Timisoara, Timisoara, Romania
41
Departamento de Física, Universidad de Buenos Aires, Buenos Aires, Argentina
42
Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom
43
Department of Physics, Carleton University, Ottawa, ON, Canada
44
CERN, Geneva, Switzerland
45
Enrico Fermi Institute, University of Chicago, Chicago, IL, United States of America
46
Departamento de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
47
Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile
48
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
49
Department of Modern Physics, University of Science and Technology of China, Anhui, China
50
Department of Physics, Nanjing University, Jiangsu, China
51
School of Physics, Shandong University, Shandong, China
52
Physics Department, Shanghai Jiao Tong University, Shanghai, China
53
Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Clermont-Ferrand, France
54
Nevis Laboratory, Columbia University, Irvington, NY, United States of America
55
Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark
56
INFN Gruppo Collegato di Cosenza, Laboratori Nazionali di Frascati, Rende, Italy
57
Dipartimento di Fisica, Università della Calabria, Rende, Italy
58
Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Krakow, Poland
59
Marian Smoluchowski Institute of Physics, Jagiellonian University, Krakow, Poland
60
The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
61
Physics Department, Southern Methodist University, Dallas, TX, United States of America
62
Physics Department, University of Texas at Dallas, Richardson, TX, United States of America
63
DESY, Hamburg and Zeuthen, Germany
64
Institut für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany
65
Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
66
Department of Physics, Duke University, Durham, NC, United States of America
67
SUPA - School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
68
Laboratori Nazionali di Frascati, INFN, Frascati, Italy
69
Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany
70
Section de Physique, Université de Genève, Geneva, Switzerland
71
INFN Sezione di Genova, Genova, Italy
72
Dipartimento di Fisica, Università di Genova, Genova, Italy
73
E. Andronikashvili Institute of Physics, Iv. Javakhishvili Tbilisi State University, Tbilisi, Georgia
74
High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia
75
II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany
76
SUPA - School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
77
II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany
78
Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, France
79
Department of Physics, Hampton University, Hampton, VA, United States of America
80
Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA, United States of America
81
Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
82
Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
83
ZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany
84
Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan
85
Department of Physics, Indiana University, Bloomington, IN, United States of America
86
Institut für Astro- und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria
87
University of Iowa, Iowa City, IA, United States of America
88
Department of Physics and Astronomy, Iowa State University, Ames, IA, United States of America
89
Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia
90
KEK, High Energy Accelerator Research Organization, Tsukuba, Japan
91
Graduate School of Science, Kobe University, Kobe, Japan
92
Faculty of Science, Kyoto University, Kyoto, Japan
93
Kyoto University of Education, Kyoto, Japan
94
Department of Physics, Kyushu University, Fukuoka, Japan
95
Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
96
Physics Department, Lancaster University, Lancaster, United Kingdom
97
INFN Sezione di Lecce, Lecce, Italy
98
Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy
99
Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
100
Department of Physics, Jožef Stefan Institute and University of Ljubljana, Ljubljana, Slovenia
101
School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
102
Department of Physics, Royal Holloway University of London, Surrey, United Kingdom
103
Department of Physics and Astronomy, University College London, London, United Kingdom
104
Louisiana Tech University, Ruston, LA, United States of America
105
Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France
106
Fysiska institutionen, Lunds universitet, Lund, Sweden
107
Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain
108
Institut für Physik, Universität Mainz, Mainz, Germany
109
School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
110
CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France
111
Department of Physics, University of Massachusetts, Amherst, MA, United States of America
112
Department of Physics, McGill University, Montreal, QC, Canada
113
School of Physics, University of Melbourne, Victoria, Australia
114
Department of Physics, The University of Michigan, Ann Arbor, MI, United States of America
115
Department of Physics and Astronomy, Michigan State University, East Lansing, MI, United States of America
116
INFN Sezione di Milano, Milano, Italy
117
Dipartimento di Fisica, Università di Milano, Milano, Italy
118
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
119
National Scientific and Educational Centre for Particle and High Energy Physics, Minsk, Republic of Belarus
120
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, United States of America
121
Group of Particle Physics, University of Montreal, Montreal, QC, Canada
122
P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia
123
Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia
124
Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia
125
D.V. Skobeltsyn Institute of Nuclear Physics, M.V.Lomonosov Moscow State University, Moscow, Russia
126
Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany
127
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany
128
Nagasaki Institute of Applied Science, Nagasaki, Japan
129
Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan
130
INFN Sezione di Napoli, Napoli, Italy
131
Dipartimento di Scienze Fisiche, Università di Napoli, Napoli, Italy
132
Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States of America
133
Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands
134
Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands
135
Department of Physics, Northern Illinois University, DeKalb, IL, United States of America
136
Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia
137
Department of Physics, New York University, New York, NY, United States of America
138
Ohio State University, Columbus, OH, United States of America
139
Faculty of Science, Okayama University, Okayama, Japan
140
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States of America
141
Department of Physics, Oklahoma State University, Stillwater, OK, United States of America
142
RCPTM, Palacký University, Olomouc, Czech Republic
143
Center for High Energy Physics, University of Oregon, Eugene, OR, United States of America
144
LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France
145
Graduate School of Science, Osaka University, Osaka, Japan
146
Department of Physics, University of Oslo, Oslo, Norway
147
Department of Physics, Oxford University, Oxford, United Kingdom
148
INFN Sezione di Pavia, Pavia, Italy
149
Dipartimento di Fisica, Università di Pavia, Pavia, Italy
150
Department of Physics, University of Pennsylvania, Philadelphia, PA, United States of America
151
Petersburg Nuclear Physics Institute, Gatchina, Russia
152
INFN Sezione di Pisa, Pisa, Italy
153
Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy
154
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, United States of America
155
Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal
156
Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain
157
Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic
158
Czech Technical University in Prague, Praha, Czech Republic
159
Faculty of Mathematics and Physics, Charles University in Prague, Praha, Czech Republic
160
State Research Center Institute for High Energy Physics, Protvino, Russia
161
Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom
162
Physics Department, University of Regina, Regina, SK, Canada
163
Ritsumeikan University, Kusatsu, Shiga, Japan
164
INFN Sezione di Roma I, Roma, Italy
165
Dipartimento di Fisica, Università La Sapienza, Roma, Italy
166
INFN Sezione di Roma Tor Vergata, Roma, Italy
167
Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy
168
INFN Sezione di Roma Tre, Roma, Italy
169
Dipartimento di Matematica e Fisica, Università Roma Tre, Roma, Italy
170
Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco
171
Centre National de l’Energie des Sciences Techniques Nucleaires, Rabat, Morocco
172
Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco
173
Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco
174
Faculté des sciences, Université Mohammed V-Agdal, Rabat, Morocco
175
DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers), CEA Saclay (Commissariat à l’Energie Atomique et aux Energies Alternatives), Gif-sur-Yvette, France
176
Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, United States of America
177
Department of Physics, University of Washington, Seattle, WA, United States of America
178
Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
179
Department of Physics, Shinshu University, Nagano, Japan
180
Fachbereich Physik, Universität Siegen, Siegen, Germany
181
Department of Physics, Simon Fraser University, Burnaby, BC, Canada
182
SLAC National Accelerator Laboratory, Stanford, CA, United States of America
183
Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic
184
Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic
185
Department of Physics, University of Cape Town, Cape Town, South Africa
186
Department of Physics, University of Johannesburg, Johannesburg, South Africa
187
School of Physics, University of the Witwatersrand, Johannesburg, South Africa
188
Department of Physics, Stockholm University, Stockholm, Sweden
189
The Oskar Klein Centre, Stockholm, Sweden
190
Physics Department, Royal Institute of Technology, Stockholm, Sweden
191
Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, NY, United States of America
192
Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom
193
School of Physics, University of Sydney, Sydney, Australia
194
Institute of Physics, Academia Sinica, Taipei, Taiwan
195
Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel
196
Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
197
Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
198
International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan
199
Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan
200
Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
201
Department of Physics, University of Toronto, Toronto, ON, Canada
202
TRIUMF, Vancouver, BC, Canada
203
Department of Physics and Astronomy, York University, Toronto, ON, Canada
204
Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
205
Department of Physics and Astronomy, Tufts University, Medford, MA, United States of America
206
Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia
207
Department of Physics and Astronomy, University of California Irvine, Irvine, CA, United States of America
208
INFN Gruppo Collegato di Udine, Sezione di Trieste, Udine, Italy
209
ICTP, Trieste, Italy
210
Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy
211
Department of Physics, University of Illinois, Urbana, IL, United States of America
212
Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden
213
Instituto de Física Corpuscular (IFIC) and Departamento de Física Atómica, Molecular y Nuclear and Departamento de Ingeniería Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, Spain
214
Department of Physics, University of British Columbia, Vancouver, BC, Canada
215
Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
216
Department of Physics, University of Warwick, Coventry, United Kingdom
217
Waseda University, Tokyo, Japan
218
Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel
219
Department of Physics, University of Wisconsin, Madison, WI, United States of America
220
Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany
221
Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany
222
Department of Physics, Yale University, New Haven, CT, United States of America
223
Yerevan Physics Institute, Yerevan, Armenia
224
Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules (IN2P3), Villeurbanne, France
* e-mail: atlas.publications@cern.ch
Received:
22
July
2013
Revised:
22
November
2013
Published online:
11
December
2013
A measurement of jet shapes in top-quark pair events using 1.8 fb−1 of
pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the single-lepton and dilepton final states. The differential and integrated shapes of the jets initiated by bottom-quarks from the top-quark decays are compared with those of the jets originated by light-quarks from the hadronic W-boson decays
in the single-lepton channel. The light-quark jets are found to have a narrower distribution of the momentum flow inside the jet area than b-quark jets.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013