https://doi.org/10.1140/epjc/s10052-012-2174-z
Letter
Search for top and bottom squarks from gluino pair production in final states with missing transverse energy and at least three b-jets with the ATLAS detector
1
CERN, 1211, Geneva 23, Switzerland
2
Physics Department, SUNY Albany, Albany, NY, United States of America
3
Department of Physics, University of Alberta, Edmonton, AB, Canada
4
Department of Physics, Ankara University, Ankara, Turkey
5
Department of Physics, Dumlupinar University, Kutahya, 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 and ICREA, 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
Division of Physics, Dogus University, Istanbul, Turkey
26
Department of Physics Engineering, Gaziantep University, Gaziantep, Turkey
27
Department of Physics, Istanbul Technical University, Istanbul, Turkey
28
INFN Sezione di Bologna, Bologna, Italy
29
Dipartimento di Fisica, Università di Bologna, Bologna, Italy
30
Physikalisches Institut, University of Bonn, Bonn, Germany
31
Department of Physics, Boston University, Boston, MA, United States of America
32
Department of Physics, Brandeis University, Waltham, MA, United States of America
33
Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro, Brazil
34
Federal University of Juiz de Fora (UFJF), Juiz de Fora, Brazil
35
Federal University of Sao Joao del Rei (UFSJ), Sao Joao del Rei, Brazil
36
Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, Brazil
37
Physics Department, Brookhaven National Laboratory, Upton, NY, United States of America
38
National Institute of Physics and Nuclear Engineering, Bucharest, 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
Laboratoire de Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Aubiere Cedex, France
53
Nevis Laboratory, Columbia University, Irvington, NY, United States of America
54
Niels Bohr Institute, University of Copenhagen, Kobenhavn, Denmark
55
INFN Gruppo Collegato di Cosenza, Arcavata di Rende, Italy
56
Dipartimento di Fisica, Università della Calabria, Arcavata di Rende, Italy
57
AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Krakow, Poland
58
The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
59
Physics Department, Southern Methodist University, Dallas, TX, United States of America
60
Physics Department, University of Texas at Dallas, Richardson, TX, United States of America
61
DESY, Hamburg and, Zeuthen, Germany
62
Institut für Experimentelle Physik IV, Technische Universität Dortmund, Dortmund, Germany
63
Institut für Kern-und Teilchenphysik, Technical University Dresden, Dresden, Germany
64
Department of Physics, Duke University, Durham, NC, United States of America
65
SUPA - School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
66
INFN Laboratori Nazionali di Frascati, Frascati, Italy
67
Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg, Germany
68
Section de Physique, Université de Genève, Geneva, Switzerland
69
INFN Sezione di Genova, Genova, Italy
70
Dipartimento di Fisica, Università di Genova, Genova, Italy
71
E. Andronikashvili Institute of Physics, Tbilisi State University, Tbilisi, Georgia
72
High Energy Physics Institute, Tbilisi State University, Tbilisi, Georgia
73
II Physikalisches Institut, Justus-Liebig-Universität Giessen, Giessen, Germany
74
SUPA - School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
75
II Physikalisches Institut, Georg-August-Universität, Göttingen, Germany
76
Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, France
77
Department of Physics, Hampton University, Hampton, VA, United States of America
78
Laboratory for Particle Physics and Cosmology, Harvard University, Cambridge, MA, United States of America
79
Kirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
80
Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
81
ZITI Institut für technische Informatik, Ruprecht-Karls-Universität Heidelberg, Mannheim, Germany
82
Faculty of Applied Information Science, Hiroshima Institute of Technology, Hiroshima, Japan
83
Department of Physics, Indiana University, Bloomington, IN, United States of America
84
Institut für Astro-und Teilchenphysik, Leopold-Franzens-Universität, Innsbruck, Austria
85
University of Iowa, Iowa City, IA, United States of America
86
Department of Physics and Astronomy, Iowa State University, Ames, IA, United States of America
87
Joint Institute for Nuclear Research, JINR Dubna, Dubna, Russia
88
KEK, High Energy Accelerator Research Organization, Tsukuba, Japan
89
Graduate School of Science, Kobe University, Kobe, Japan
90
Faculty of Science, Kyoto University, Kyoto, Japan
91
Kyoto University of Education, Kyoto, Japan
92
Department of Physics, Kyushu University, Fukuoka, Japan
93
Instituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
94
Physics Department, Lancaster University, Lancaster, United Kingdom
95
INFN Sezione di Lecce, Lecce, Italy
96
Dipartimento di Matematica e Fisica, Università del Salento, Lecce, Italy
97
Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom
98
Department of Physics, Jožef Stefan Institute and University of Ljubljana, Ljubljana, Slovenia
99
School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
100
Department of Physics, Royal Holloway University of London, Surrey, United Kingdom
101
Department of Physics and Astronomy, University College London, London, United Kingdom
102
Laboratoire de Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3, Paris, France
103
Fysiska institutionen, Lunds universitet, Lund, Sweden
104
Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid, Madrid, Spain
105
Institut für Physik, Universität Mainz, Mainz, Germany
106
School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
107
CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France
108
Department of Physics, University of Massachusetts, Amherst, MA, United States of America
109
Department of Physics, McGill University, Montreal, QC, Canada
110
School of Physics, University of Melbourne, Victoria, Australia
111
Department of Physics, The University of Michigan, Ann Arbor, MI, United States of America
112
Department of Physics and Astronomy, Michigan State University, East, Lansing, MI, United States of America
113
INFN Sezione di Milano, Milano, Italy
114
Dipartimento di Fisica, Università di Milano, Milano, Italy
115
B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Republic of Belarus
116
National Scientific and Educational Centre for Particle and High Energy Physics, Minsk, Republic of Belarus
117
Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, United States of America
118
Group of Particle Physics, University of Montreal, Montreal, QC, Canada
119
P.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, Russia
120
Institute for Theoretical and Experimental Physics (ITEP), Moscow, Russia
121
Moscow Engineering and Physics Institute (MEPhI), Moscow, Russia
122
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
123
Fakultät für Physik, Ludwig-Maximilians-Universität München, München, Germany
124
Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Germany
125
Nagasaki Institute of Applied Science, Nagasaki, Japan
126
Graduate School of Science and Kobayashi-Maskawa Institute, Nagoya University, Nagoya, Japan
127
INFN Sezione di Napoli, Napoli, Italy
128
Dipartimento di Scienze Fisiche, Università di Napoli, Napoli, Italy
129
Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States of America
130
Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands
131
Nikhef National Institute for Subatomic Physics and University of Amsterdam, Amsterdam, Netherlands
132
Department of Physics, Northern Illinois University, DeKalb, IL, United States of America
133
Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, Russia
134
Department of Physics, New York University, New York, NY, United States of America
135
Ohio State University, Columbus, OH, United States of America
136
Faculty of Science, Okayama University, Okayama, Japan
137
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States of America
138
Department of Physics, Oklahoma State University, Stillwater, OK, United States of America
139
Palacký University, RCPTM, Olomouc, Czech Republic
140
Center for High Energy Physics, University of Oregon, Eugene, OR, United States of America
141
LAL, Université Paris-Sud and CNRS/IN2P3, Orsay, France
142
Graduate School of Science, Osaka University, Osaka, Japan
143
Department of Physics, University of Oslo, Oslo, Norway
144
Department of Physics, Oxford University, Oxford, United Kingdom
145
INFN Sezione di Pavia, Pavia, Italy
146
Dipartimento di Fisica, Università di Pavia, Pavia, Italy
147
Department of Physics, University of Pennsylvania, Philadelphia, PA, United States of America
148
Petersburg Nuclear Physics Institute, Gatchina, Russia
149
INFN Sezione di Pisa, Pisa, Italy
150
Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy
151
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, United States of America
152
Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Lisboa, Portugal
153
Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, Spain
154
Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic
155
Faculty of Mathematics and Physics, Charles University in Prague, Praha, Czech Republic
156
Czech Technical University in Prague, Praha, Czech Republic
157
State Research Center Institute for High Energy Physics, Protvino, Russia
158
Particle Physics Department, Rutherford Appleton Laboratory, Didcot, United Kingdom
159
Physics Department, University of Regina, Regina, SK, Canada
160
Ritsumeikan University, Kusatsu, Shiga, Japan
161
INFN Sezione di Roma I, Roma, Italy
162
Dipartimento di Fisica, Università La Sapienza, Roma, Italy
163
INFN Sezione di Roma Tor Vergata, Roma, Italy
164
Dipartimento di Fisica, Università di Roma Tor Vergata, Roma, Italy
165
INFN Sezione di Roma Tre, Roma, Italy
166
Dipartimento di Fisica, Università Roma Tre, Roma, Italy
167
Faculté des Sciences Ain Chock, Réseau Universitaire de Physique des Hautes Energies - Université Hassan II, Casablanca, Morocco
168
Centre National de l’Energie des Sciences Techniques Nucleaires, Rabat, Morocco
169
Faculté des Sciences Semlalia, Université Cadi Ayyad, LPHEA-Marrakech, Morocco
170
Faculté des Sciences, Université Mohamed Premier and LPTPM, Oujda, Morocco
171
Faculté des sciences, Université Mohammed V-Agdal, Rabat, Morocco
172
DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers), CEA Saclay (Commissariat a l’Energie Atomique), Gif-sur-Yvette, France
173
Santa Cruz Institute for Particle Physics, University of California Santa Cruz, Santa Cruz, CA, United States of America
174
Department of Physics, University of Washington, Seattle, WA, United States of America
175
Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom
176
Department of Physics, Shinshu University, Nagano, Japan
177
Fachbereich Physik, Universität Siegen, Siegen, Germany
178
Department of Physics, Simon Fraser University, Burnaby, BC, Canada
179
SLAC National Accelerator Laboratory, Stanford, CA, United States of America
180
Faculty of Mathematics, Physics & Informatics, Comenius University, Bratislava, Slovak Republic
181
Department of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak Republic
182
Department of Physics, University of Johannesburg, Johannesburg, South Africa
183
School of Physics, University of the Witwatersrand, Johannesburg, South Africa
184
Department of Physics, Stockholm University, Stockholm, Sweden
185
The Oskar Klein Centre, Stockholm, Sweden
186
Physics Department, Royal Institute of Technology, Stockholm, Sweden
187
Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook, NY, United States of America
188
Department of Physics and Astronomy, University of Sussex, Brighton, United Kingdom
189
School of Physics, University of Sydney, Sydney, Australia
190
Institute of Physics, Academia Sinica, Taipei, Taiwan
191
Department of Physics, Technion: Israel Institute of Technology, Haifa, Israel
192
Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
193
Department of Physics, Aristotle University of Thessaloniki, Thessaloniki, Greece
194
International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, Japan
195
Graduate School of Science and Technology, Tokyo Metropolitan University, Tokyo, Japan
196
Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
197
Department of Physics, University of Toronto, Toronto, ON, Canada
198
TRIUMF, Vancouver, BC, Canada
199
Department of Physics and Astronomy, York University, Toronto, ON, Canada
200
Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8571, Japan
201
Science and Technology Center, Tufts University, Medford, MA, United States of America
202
Centro de Investigaciones, Universidad Antonio Narino, Bogota, Colombia
203
Department of Physics and Astronomy, University of California Irvine, Irvine, CA, United States of America
204
INFN Gruppo Collegato di Udine, Udine, Italy
205
ICTP, Trieste, Italy
206
Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Udine, Italy
207
Department of Physics, University of Illinois, Urbana, IL, United States of America
208
Department of Physics and Astronomy, University of Uppsala, Uppsala, Sweden
209
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
210
Department of Physics, University of British Columbia, Vancouver, BC, Canada
211
Department of Physics and Astronomy, University of Victoria, Victoria, BC, Canada
212
Department of Physics, University of Warwick, Coventry, United Kingdom
213
Waseda University, Tokyo, Japan
214
Department of Particle Physics, The Weizmann Institute of Science, Rehovot, Israel
215
Department of Physics, University of Wisconsin, Madison, WI, United States of America
216
Fakultät für Physik und Astronomie, Julius-Maximilians-Universität, Würzburg, Germany
217
Fachbereich C Physik, Bergische Universität Wuppertal, Wuppertal, Germany
218
Department of Physics, Yale University, New Haven, CT, United States of America
219
Yerevan Physics Institute, Yerevan, Armenia
220
Domaine scientifique de la Doua, Centre de Calcul CNRS/IN2P3, Villeurbanne Cedex, France
* e-mail: atlas.publications@cern.ch
Received:
19
July
2012
Revised:
10
September
2012
Published online:
6
October
2012
This letter reports the results of a search for top and bottom squarks from gluino pair production in 4.7 fb−1 of pp collisions at 
using the ATLAS detector at the LHC. The search is performed in events with large missing transverse momentum and at least three jets identified as originating from a b-quark. Exclusion limits are presented for a variety of gluino-mediated models with gluino masses up to 1 TeV excluded.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2012
