Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 74, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-014-3077-y
Keywords
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Categories
Funding
- Grid centres
- Worldwide LHC Computing Grid (WLCG)
- State Committee of Science
- World Federation of Scientists (WFS)
- Swiss Fonds Kidagan, Armenia
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Financiadora de Estudos e Projetos (FINEP)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- National Natural Science Foundation of China (NSFC)
- Chinese Ministry of Education (CMOE)
- Ministry of Science and Technology of China (MSTC)
- Ministry of Education and Youth of the Czech Republic
- Danish Natural Science Research Council
- Carlsberg Foundation
- Danish National Research Foundation
- European Research Council under the European Community
- Helsinki Institute of Physics
- Academy of Finland
- French CNRS-IN2P3
- 'Region Pays de Loire', France
- 'Region Alsace', France
- 'Region Auvergne', France
- CEA, France
- German BMBF
- Helmholtz Association
- General Secretariat for Research and Technology, Ministry of Development, Greece
- Hungarian OTKA
- National Office for Research and Technology (NKTH)
- Department of Atomic Energy of the Government of India
- Department of Science and Technology of the Government of India
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
- MEXT, Japan
- Joint Institute for Nuclear Research, Dubna
- National Research Foundation of Korea (NRF)
- CONACYT, Mexico
- DGAPA, Mexico
- ALFA-EC
- EPLANET Program (European Particle Physics Latin American Network) Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Research Council of Norway (NFR)
- Polish Ministry of Science and Higher Education
- National Science Centre, Poland
- Ministry of National Education/Institute for Atomic Physics-Romania
- 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
- Russian Foundation for Basic Research
- Ministry of Education of Slovakia
- Department of Science and Technology, South Africa
- CIEMAT of Spain
- EELA of Spain
- Ministerio de Economia y Competitividad (MINECO) of Spain
- Xunta de Galicia (Conselleria de Educacion), Cuba
- CEADEN, Cuba
- Cubaenergia, Cuba
- IAEA (International Atomic Energy Agency)
- Swedish Research Council (VR)
- Knut & Alice Wallenberg Foundation (KAW)
- Ukraine Ministry of Education and Science
- United Kingdom Science and Technology Facilities Council (STFC)
- United States Department of Energy
- United States National Science Foundation
- State of Texas
- State of Ohio
- Ministry of Science, Education and Sports of Croatia
- Unity through Knowledge Fund, Croatia
- Science and Technology Facilities Council [ST/I003398/1, ST/J000108/1, ST/G008833/1, 2014 STFC Nuclear Physics CG, ST/J000140/1, GRIDPP, 1231104, ST/J000094/1] Funding Source: researchfish
- STFC [ST/I003398/1, ST/J000094/1, ST/G008833/1, ST/J000140/1, 2014 STFC Nuclear Physics CG, ST/J000108/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [1307461] Funding Source: National Science Foundation
- Korea Communications Agency (KCA) [B0101-14-1301] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Grants-in-Aid for Scientific Research [26610071, 23340074, 25287048] Funding Source: KAKEN
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Event-by-event fluctuations of the mean transverse momentum of charged particles produced in pp collisions at root s = 0.9, 2.76 and 7 TeV, and Pb-Pb collisions at root S-NN = 2.76 TeV are studied as a function of the charged-particle multiplicity using the ALICE detector at the LHC. Dynamical fluctuations indicative of correlated particle emission are observed in all systems. The results in pp collisions show little dependence on collision energy. The Monte Carlo event generators PYTHIA and PHOJET are in qualitative agreement with the data. Peripheral Pb-Pb data exhibit a similar-multiplicity dependence as that observed in pp. In central Pb-Pb, the results deviate from this trend, featuring a significant reduction of the fluctuation strength. The results in Pb-Pb are in qualitative agreement with previous measurements in Au-Au at lower collision energies and with expectations from models that incorporate collective phenomena.
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