Measurement of pion, kaon and proton production in proton–proton collisions at s√=7 TeV
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ISSN: 1434-6044
E-ISSN: 1434-6052
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Abstract
The measurement of primary π
±, K±, p and p
production at mid-rapidity (|y| < 0.5) in proton–proton collisions
at
√
s = 7 TeV performed with a large ion collider
experiment at the large hadron collider (LHC) is reported.
Particle identification is performed using the specific ionisation
energy-loss and time-of-flight information, the ringimaging
Cherenkov technique and the kink-topology identification
of weak decays of charged kaons. Transverse momentum
spectra are measured from 0.1 up to 3 GeV/c for pions,
from 0.2 up to 6 GeV/c for kaons and from 0.3 up to 6 GeV/c
for protons. The measured spectra and particle ratios are
compared with quantum chromodynamics-inspired models,
tuned to reproduce also the earlier measurements performed
at the LHC. Furthermore, the integrated particle yields and
ratios as well as the average transverse momenta are compared
with results at lower collision energies
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Bibliographic citation
Adam, J., Adamová, D., Aggarwal, M.M. et al. Measurement of pion, kaon and proton production in proton–proton collisions at s√=7 TeV. Eur. Phys. J. C 75, 226 (2015). https://doi.org/10.1140/epjc/s10052-015-3422-9
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https://doi.org/10.1140/epjc/s10052-015-3422-9Sponsors
The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: State Committee of Science,World Federation of Scientist (WFS) and Swiss Fonds Kidagan, Armenia, Conselho Nacional
de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de
Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado
de São Paulo (FAPESP); National Natural Science Foundation of China
(NSFC), the Chinese Ministry of Education (CMOE) and the Ministry
of Science and Technology of China (MSTC); Ministry of Education
and Youth of the Czech Republic; Danish Natural Science Research
Council, the Carlsberg Foundation and the Danish National Research
Foundation; The European Research Council under the European Community’s
Seventh Framework Programme; Helsinki Institute of Physics
and the Academy of Finland; French CNRS-IN2P3, the ‘Region Pays de
Loire’, ‘Region Alsace’, ‘Region Auvergne’ and CEA, France; German
Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie
(BMBF) and the Helmholtz Association; General Secretariat
for Research and Technology, Ministry of Development, Greece; Hungarian
Orszagos Tudomanyos Kutatasi Alappgrammok (OTKA) and
National Office for Research and Technology (NKTH); Department of
Atomic Energy and Department of Science and Technology of the Government
of India; Istituto Nazionale di Fisica Nucleare (INFN) andCentro
Fermi – Museo Storico della Fisica eCentro Studi eRicerche “Enrico
Fermi”, Italy; MEXT Grant-in-Aid for Specially Promoted Research,
Japan; Joint Institute for Nuclear Research, Dubna; National Research
Foundation of Korea (NRF); Consejo Nacional de Cienca y Tecnologia
(CONACYT), Direccion General de Asuntos del Personal Academico
(DGAPA),México; Amerique Latine Formation academique European
Commission (ALFA-EC) and the EPLANET Program (European Particle
Physics Latin American Network) Stichting voor Fundamenteel
Onderzoek der Materie (FOM) and the Nederlandse Organisatie voor
Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council
of Norway (NFR); National Science Centre, Poland; Ministry of
National Education/Institute for Atomic Physics and Consiliul National
al Cercettrii tiinifice –Executive Agency forHigherEducationResearch
Development and Innovation Funding (CNCS-UEFISCDI) – Romania;
Ministry of Education and Science of Russian Federation, Russian
Academy of Sciences, Russian Federal Agency of Atomic Energy,
Russian Federal Agency for Science and Innovations and The Russian
Foundation for Basic Research;Ministry of Education of Slovakia;
Department of Science and Technology, South Africa; Centro de Investigaciones
Energeticas, Medioambientales y Tecnologicas (CIEMAT),
E-Infrastructure shared between Europe and Latin America (EELA),
Ministerio de Economía y Competitividad (MINECO) of Spain, Xunta
de Galicia (Consellería de Educación), Centro de Aplicaciones Tecnolgicas
y Desarrollo Nuclear (CEADEN), Cubaenergía, Cuba, and
IAEA (InternationalAtomic EnergyAgency); Swedish Research Council
(VR) and Knut and Alice Wallenberg Foundation (KAW); Ukraine
Ministry of Education and Science; United Kingdom Science and Technology
Facilities Council (STFC); The United States Department of
Energy, the United States National Science Foundation, the State of
Texas, and the State of Ohio; Ministry of Science, Education and Sports
of Croatia and Unity through Knowledge Fund, Croatia. Council of Scientific
and Industrial Research (CSIR), New Delhi, India
Rights
© CERN for the benefit of the ALICE collaboration 2015. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made