https://doi.org/10.1140/epjc/s10052-015-3706-0
Regular Article - Experimental Physics
Measurements of the
production cross sections in the
channel in proton–proton collisions at
and
and combined constraints on triple gauge couplings
1
Yerevan Physics Institute, Yerevan, Armenia
2
Institut für Hochenergiephysik der OeAW, Vienna, Austria
3
National Centre for Particle and High Energy Physics, Minsk, Belarus
4
Universiteit Antwerpen, Antwerpen, Belgium
5
Vrije Universiteit Brussel, Brussels, Belgium
6
Université Libre de Bruxelles, Brussels, Belgium
7
Ghent University, Ghent, Belgium
8
Université Catholique de Louvain, Louvain-la-Neuve, Belgium
9
Université de Mons, Mons, Belgium
10
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
11
Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
12
Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil
13
Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
14
University of Sofia, Sofia, Bulgaria
15
Institute of High Energy Physics, Beijing, China
16
State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
17
Universidad de Los Andes, Bogotá, Colombia
18
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia
19
Faculty of Science, University of Split, Split, Croatia
20
Institute Rudjer Boskovic, Zagreb, Croatia
21
University of Cyprus, Nicosia, Cyprus
22
Charles University, Prague, Czech Republic
23
Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt
24
National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
25
Department of Physics, University of Helsinki, Helsinki, Finland
26
Helsinki Institute of Physics, Helsinki, Finland
27
Lappeenranta University of Technology, Lappeenranta, Finland
28
DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France
29
Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France
30
Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse, CNRS/IN2P3, Strasbourg, France
31
Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France
32
Institut de Physique Nucléaire de Lyon, Université de Lyon, Université Claude Bernard Lyon 1, CNRS-IN2P3, Villeurbanne, France
33
Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia
34
I. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
35
III. Physikalisches Institut A, RWTH Aachen University, Aachen, Germany
36
III. Physikalisches Institut B, RWTH Aachen University, Aachen, Germany
37
Deutsches Elektronen-Synchrotron, Hamburg, Germany
38
University of Hamburg, Hamburg, Germany
39
Institut für Experimentelle Kernphysik, Karlsruhe, Germany
40
Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece
41
University of Athens, Athens, Greece
42
University of Ioánnina, Ioannina, Greece
43
Wigner Research Centre for Physics, Budapest, Hungary
44
Institute of Nuclear Research ATOMKI, Debrecen, Hungary
45
University of Debrecen, Debrecen, Hungary
46
National Institute of Science Education and Research, Bhubaneswar, India
47
Panjab University, Chandigarh, India
48
University of Delhi, Delhi, India
49
Saha Institute of Nuclear Physics, Kolkata, India
50
Bhabha Atomic Research Centre, Mumbai, India
51
Tata Institute of Fundamental Research, Mumbai, India
52
Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
53
University College Dublin, Dublin, Ireland
54
INFN Sezione di Bari, Università di Bari, Politecnico di Bari, Bari, Italy
55
INFN Sezione di Bologna, Università di Bologna, Bologna, Italy
56
INFN Sezione di Catania, Università di Catania, CSFNSM, Catania, Italy
57
INFN Sezione di Firenze, Università di Firenze, Florence, Italy
58
INFN Laboratori Nazionali di Frascati, Frascati, Italy
59
INFN Sezione di Genova, Università di Genova, Genoa, Italy
60
INFN Sezione di Milano-Bicocca, Università di Milano-Bicocca, Milan, Italy
61
INFN Sezione di Napoli, Università di Napoli ‘Federico II’, Naples, Italy, Università della Basilicata, Potenza, Italy, Università G. Marconi, Rome, Italy
62
INFN Sezione di Padova, Università di Padova, Padua, Italy, Università di Trento, Trento, Italy
63
INFN Sezione di Pavia, Università di Pavia, Pavia, Italy
64
INFN Sezione di Perugia, Università di Perugia, Perugia, Italy
65
INFN Sezione di Pisa, Università di Pisa, Scuola Normale Superiore di Pisa, Pisa, Italy
66
INFN Sezione di Roma, Università di Roma, Rome, Italy
67
INFN Sezione di Torino, Università di Torino, Turin, Italy, Università del Piemonte Orientale, Novara, Italy
68
INFN Sezione di Trieste, Università di Trieste, Trieste, Italy
69
Kangwon National University, Chunchon, Korea
70
Kyungpook National University, Daegu, Korea
71
Chonbuk National University, Jeonju, Korea
72
Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea
73
Korea University, Seoul, Korea
74
Seoul National University, Seoul, Korea
75
University of Seoul, Seoul, Korea
76
Sungkyunkwan University, Suwon, Korea
77
Vilnius University, Vilnius, Lithuania
78
National Centre for Particle Physics, Universiti Malaya, Kuala Lumpur, Malaysia
79
Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
80
Universidad Iberoamericana, Mexico City, Mexico
81
Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
82
Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
83
University of Auckland, Auckland, New Zealand
84
University of Canterbury, Christchurch, New Zealand
85
National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
86
National Centre for Nuclear Research, Swierk, Poland
87
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
88
Laboratório de Instrumentação e Física Experimental de Partículas, Lisbon, Portugal
89
Joint Institute for Nuclear Research, Dubna, Russia
90
Petersburg Nuclear Physics Institute, Gatchina, (St. Petersburg), Russia
91
Institute for Nuclear Research, Moscow, Russia
92
Institute for Theoretical and Experimental Physics, Moscow, Russia
93
P. N. Lebedev Physical Institute, Moscow, Russia
94
Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
95
State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia
96
Faculty of Physics and Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
97
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
98
Universidad Autónoma de Madrid, Madrid, Spain
99
Universidad de Oviedo, Oviedo, Spain
100
Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
101
CERN, European Organization for Nuclear Research, Geneva, Switzerland
102
Paul Scherrer Institut, Villigen, Switzerland
103
Institute for Particle Physics, ETH Zurich, Zurich, Switzerland
104
Universität Zürich, Zurich, Switzerland
105
National Central University, Chung-Li, Taiwan
106
National Taiwan University (NTU), Taipei, Taiwan
107
Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
108
Cukurova University, Adana, Turkey
109
Physics Department, Middle East Technical University, Ankara, Turkey
110
Bogazici University, Istanbul, Turkey
111
Istanbul Technical University, Istanbul, Turkey
112
National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine
113
University of Bristol, Bristol, UK
114
Rutherford Appleton Laboratory, Didcot, UK
115
Imperial College, London, UK
116
Brunel University, Uxbridge, UK
117
Baylor University, Waco, USA
118
The University of Alabama, Tuscaloosa, USA
119
Boston University, Boston, USA
120
Brown University, Providence, USA
121
University of California, Davis, Davis, USA
122
University of California, Los Angeles, USA
123
University of California, Riverside, Riverside, USA
124
University of California, San Diego, La Jolla, USA
125
University of California, Santa Barbara, Santa Barbara, USA
126
California Institute of Technology, Pasadena, USA
127
Carnegie Mellon University, Pittsburgh, USA
128
University of Colorado at Boulder, Boulder, USA
129
Cornell University, Ithaca, USA
130
Fairfield University, Fairfield, USA
131
Fermi National Accelerator Laboratory, Batavia, USA
132
University of Florida, Gainesville, USA
133
Florida International University, Miami, USA
134
Florida State University, Tallahassee, USA
135
Florida Institute of Technology, Melbourne, USA
136
University of Illinois at Chicago (UIC), Chicago, USA
137
The University of Iowa, Iowa City, USA
138
Johns Hopkins University, Baltimore, USA
139
The University of Kansas, Lawrence, USA
140
Kansas State University, Manhattan, USA
141
Lawrence Livermore National Laboratory, Livermore, USA
142
University of Maryland, College Park, USA
143
Massachusetts Institute of Technology, Cambridge, USA
144
University of Minnesota, Minneapolis, USA
145
University of Mississippi, Oxford, USA
146
University of Nebraska-Lincoln, Lincoln, USA
147
State University of New York at Buffalo, Buffalo, USA
148
Northeastern University, Boston, USA
149
Northwestern University, Evanston, USA
150
University of Notre Dame, Notre Dame, USA
151
The Ohio State University, Columbus, USA
152
Princeton University, Princeton, USA
153
University of Puerto Rico, Mayagüez, USA
154
Purdue University, West Lafayette, USA
155
Purdue University Calumet, Hammond, USA
156
Rice University, Houston, USA
157
University of Rochester, Rochester, USA
158
The Rockefeller University, New York, USA
159
Rutgers, The State University of New Jersey, Piscataway, USA
160
University of Tennessee, Knoxville, USA
161
Texas A&M University, College Station, USA
162
Texas Tech University, Lubbock, USA
163
Vanderbilt University, Nashville, USA
164
University of Virginia, Charlottesville, USA
165
Wayne State University, Detroit, USA
166
University of Wisconsin, Madison, USA
167
CERN, Geneva, Switzerland
* e-mail: cms-publication-committee-chair@cern.ch
Received:
18
March
2015
Accepted:
25
September
2015
Published online:
29
October
2015
Measurements of the
production cross sections in proton–proton collisions at center-of-mass energies of 7 and 8
are presented. Candidate events for the leptonic decay mode
, where
denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6)
at 7 (8)
collected with the CMS experiment. The measured cross sections,
at 7
, and
at 8
, are in good agreement with the standard model predictions with next-to-leading-order accuracy. The selected data are analyzed to search for anomalous triple gauge couplings involving the
final state. In the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. These limits are then combined with the previously published CMS results for
in 4
final states, yielding the most stringent constraints on the anomalous couplings.
© SIF and Springer-Verlag Berlin Heidelberg, 2015