https://doi.org/10.1140/epjc/s10052-020-08651-y
Regular Article - Experimental Physics
Production of
mesons in pp collisions at
1
A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation, Yerevan, Armenia
2
Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
3
Department of Physics and Centre for Astroparticle Physics and Space Science (CAPSS), Bose Institute, Kolkata, India
4
Budker Institute for Nuclear Physics, Novosibirsk, Russia
5
California Polytechnic State University, San Luis Obispo, CA, USA
6
Central China Normal University, Wuhan, China
7
Centre de Calcul de l’IN2P3, Villeurbanne, Lyon, France
8
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), Havana, Cuba
9
Centro de Investigación y de Estudios Avanzados (CINVESTAV), Mexico City and Mérida, Mexico
10
Centro Fermi, Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi’, Rome, Italy
11
Chicago State University, Chicago, IL, USA
12
China Institute of Atomic Energy, Beijing, China
13
Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava, Bratislava, Slovakia
14
COMSATS University Islamabad, Islamabad, Pakistan
15
Creighton University, Omaha, NE, USA
16
Department of Physics, Aligarh Muslim University, Aligarh, India
17
Department of Physics, Pusan National University, Pusan, Republic of Korea
18
Department of Physics, Sejong University, Seoul, Republic of Korea
19
Department of Physics, University of California, Berkeley, CA, USA
20
Department of Physics, University of Oslo, Oslo, Norway
21
Department of Physics and Technology, University of Bergen, Bergen, Norway
22
Dipartimento di Fisica dell’Università ‘La Sapienza’ and Sezione INFN, Rome, Italy
23
Dipartimento di Fisica dell’Università and Sezione INFN, Cagliari, Italy
24
Dipartimento di Fisica dell’Università and Sezione INFN, Trieste, Italy
25
Dipartimento di Fisica dell’Università and Sezione INFN, Turin, Italy
26
Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Bologna, Italy
27
Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Catania, Italy
28
Dipartimento di Fisica e Astronomia dell’Università and Sezione INFN, Padua, Italy
29
Dipartimento di Fisica ‘E.R. Caianiello’ dell’Università and Gruppo Collegato INFN, Salerno, Italy
30
Dipartimento DISAT del Politecnico and Sezione INFN, Turin, Italy
31
Dipartimento di Scienze e Innovazione Tecnologica dell’Università del Piemonte Orientale and INFN Sezione di Torino, Alessandria, Italy
32
Dipartimento di Scienze MIFT, Università di Messina, Messina, Italy
33
Dipartimento Interateneo di Fisica ‘M. Merlin’ and Sezione INFN, Bari, Italy
34
European Organization for Nuclear Research (CERN), Geneva, Switzerland
35
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Split, Croatia
36
Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen, Norway
37
Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic
38
Faculty of Science, P.J. Šafárik University, Košice, Slovakia
39
Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, Germany
40
Fudan University, Shanghai, China
41
Gangneung-Wonju National University, Gangneung, Republic of Korea
42
Gauhati University, Department of Physics, Guwahati, India
43
Helmholtz-Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
44
Helsinki Institute of Physics (HIP), Helsinki, Finland
45
High Energy Physics Group, Universidad Autónoma de Puebla, Puebla, Mexico
46
Hiroshima University, Hiroshima, Japan
47
Hochschule Worms, Zentrum für Technologietransfer und Telekommunikation (ZTT), Worms, Germany
48
Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania
49
Indian Institute of Technology Bombay (IIT), Mumbai, India
50
Indian Institute of Technology Indore, Indore, India
51
Indonesian Institute of Sciences, Jakarta, Indonesia
52
INFN, Laboratori Nazionali di Frascati, Frascati, Italy
53
INFN, Sezione di Bari, Bari, Italy
54
INFN, Sezione di Bologna, Bologna, Italy
55
INFN, Sezione di Cagliari, Cagliari, Italy
56
INFN, Sezione di Catania, Catania, Italy
57
INFN, Sezione di Padova, Padua, Italy
58
INFN, Sezione di Roma, Rome, Italy
59
INFN, Sezione di Torino, Turin, Italy
60
INFN, Sezione di Trieste, Trieste, Italy
61
Inha University, Incheon, Republic of Korea
62
Institute for Nuclear Research, Academy of Sciences, Moscow, Russia
63
Institute for Subatomic Physics, Utrecht University/Nikhef, Utrecht, The Netherlands
64
Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia
65
Institute of Physics, Homi Bhabha National Institute, Bhubaneswar, India
66
Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
67
Institute of Space Science (ISS), Bucharest, Romania
68
Institut für Kernphysik, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, Germany
69
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
70
Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
71
Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
72
iThemba LABS, National Research Foundation, Somerset West, South Africa
73
Jeonbuk National University, Jeonju, Republic of Korea
74
Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik, Fachbereich Informatik und Mathematik, Frankfurt, Germany
75
Joint Institute for Nuclear Research (JINR), Dubna, Russia
76
Korea Institute of Science and Technology Information, Daejeon, Republic of Korea
77
KTO Karatay University, Konya, Turkey
78
Laboratoire de Physique des 2 Infinis, Irène Joliot-Curie, Orsay, France
79
Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS-IN2P3, Grenoble, France
80
Lawrence Berkeley National Laboratory, Berkeley, CA, USA
81
Lund University Department of Physics, Division of Particle Physics, Lund, Sweden
82
Nagasaki Institute of Applied Science, Nagasaki, Japan
83
Nara Women’s University (NWU), Nara, Japan
84
National and Kapodistrian University of Athens, School of Science, Department of Physics, Athens, Greece
85
National Centre for Nuclear Research, Warsaw, Poland
86
National Institute of Science Education and Research, Homi Bhabha National Institute, Jatni, India
87
National Nuclear Research Center, Baku, Azerbaijan
88
National Research Centre Kurchatov Institute, Moscow, Russia
89
Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
90
Nikhef, National institute for subatomic physics, Amsterdam, The Netherlands
91
NRC Kurchatov Institute IHEP, Protvino, Russia
92
NRC «Kurchatov»Institute - ITEP, Moscow, Russia
93
NRNU Moscow Engineering Physics Institute, Moscow, Russia
94
Nuclear Physics Group, STFC Daresbury Laboratory, Daresbury, UK
95
Nuclear Physics Institute of the Czech Academy of Sciences, Řež u Prahy, Czech Republic
96
Oak Ridge National Laboratory, Oak Ridge, TN, USA
97
Ohio State University, Columbus, OH, USA
98
Petersburg Nuclear Physics Institute, Gatchina, Russia
99
Physics department, Faculty of science, University of Zagreb, Zagreb, Croatia
100
Physics Department, Panjab University, Chandigarh, India
101
Physics Department, University of Jammu, Jammu, India
102
Physics Department, University of Rajasthan, Jaipur, India
103
Physikalisches Institut, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
104
Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany
105
Physik Department, Technische Universität München, Munich, Germany
106
Politecnico di Bari, Bari, Italy
107
Research Division and ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
108
Rudjer Bošković Institute, Zagreb, Croatia
109
Russian Federal Nuclear Center (VNIIEF), Sarov, Russia
110
Saha Institute of Nuclear Physics, Homi Bhabha National Institute, Kolkata, India
111
School of Physics and Astronomy, University of Birmingham, Birmingham, UK
112
Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Lima, Peru
113
St. Petersburg State University, St. Petersburg, Russia
114
Stefan Meyer Institut für Subatomare Physik (SMI), Vienna, Austria
115
SUBATECH, IMT Atlantique, Université de Nantes, CNRS-IN2P3, Nantes, France
116
Suranaree University of Technology, Nakhon Ratchasima, Thailand
117
Technical University of Košice, Košice, Slovakia
118
The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
119
The University of Texas at Austin, Austin, TX, USA
120
Universidad Autónoma de Sinaloa, Culiacán, Mexico
121
Universidade de São Paulo (USP), São Paulo, Brazil
122
Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
123
Universidade Federal do ABC, Santo Andre, Brazil
124
University of Cape Town, Cape Town, South Africa
125
University of Houston, Houston, TX, USA
126
University of Jyväskylä, Jyväskylä, Finland
127
University of Liverpool, Liverpool, UK
128
University of Science and Technology of China, Hefei, China
129
University of South-Eastern Norway, Tonsberg, Norway
130
University of Tennessee, Knoxville, TN, USA
131
University of the Witwatersrand, Johannesburg, South Africa
132
University of Tokyo, Tokyo, Japan
133
University of Tsukuba, Tsukuba, Japan
134
Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France
135
Université de Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, Villeurbanne, Lyon, France
136
Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg; France, Strasbourg, France
137
Université Paris-Saclay Centre d’Etudes de Saclay (CEA), IRFU, Départment de Physique Nucléaire (DPhN), Saclay, France
138
Università degli Studi di Foggia, Foggia, Italy
139
Università degli Studi di Pavia, Pavia, Italy
140
Università di Brescia, Brescia, Italy
141
Variable Energy Cyclotron Centre, Homi Bhabha National Institute, Kolkata, India
142
Warsaw University of Technology, Warsaw, Poland
143
Wayne State University, Detroit, MI, USA
144
Westfälische Wilhelms-Universität Münster, Institut für Kernphysik, Muenster, Germany
145
Wigner Research Centre for Physics, Budapest, Hungary
146
Yale University, New Haven, CT, USA
147
Yonsei University, Seoul, Republic of Korea
148
CERN, 1211, Geneva 23, Switzerland
Received:
12
July
2020
Accepted:
9
November
2020
Published online:
7
December
2020
The invariant differential cross section of inclusive meson production at midrapidity (
) in pp collisions at
was measured with the ALICE detector at the LHC over a transverse momentum range of
. The
meson was reconstructed via its
decay channel. The measured
production cross section is compared to various calculations: PYTHIA 8.2 Monash 2013 describes the data, while PYTHIA 8.2 Tune 4C overestimates the data by about 50%. A recent NLO calculation, which includes a model describing the fragmentation of the whole vector-meson nonet, describes the data within uncertainties below
, while it overestimates the data by up to 50% for higher
. The
ratio is in agreement with previous measurements at lower collision energies and the PYTHIA calculations. In addition, the measurement is compatible with transverse mass scaling within the measured
range and the ratio is constant with
above a transverse momentum of
.
© CERN for the benefit of the ALICE collaboration 2020
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