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Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC

Bornheim, A. and Bunn, J. and Chen, Y. and Gataullin, M. and Kcira, D. and Litvine, V. and Ma, Y. and Mott, A. and Newman, H. B. and Rogan, C. and Shin, K. and Timciuc, V. and Traczyk, P. and Veverka, J. and Wilkinson, R. and Yang, Y. and Zhu, R. Y. (2010) Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC. Journal of High Energy Physics, 2010 (9). Art. No. 091. ISSN 1126-6708. https://resolver.caltech.edu/CaltechAUTHORS:20101130-132602008

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Abstract

Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (η) and azimuthal angle (ø). Short-range correlations in Δη, which are studied in minimum bias events, are characterized using a simple “independent cluster" parametrization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 nb^(-1) data set at 7 TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate p_T of 1-3 GeV/c, 2.0 < | Δη| < 4:8 and Δø ≈ 0. This is the first observation of such a long--range, near-side feature in two-particle correlation functions in pp or pp[overbar] collisions.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/JHEP09(2010)091 DOIArticle
http://www.springerlink.com/content/18j075w18321q5h6/PublisherArticle
ORCID:
AuthorORCID
Bornheim, A.0000-0002-0128-0871
Bunn, J.0000-0002-3798-298X
Chen, Y.0000-0003-2582-6469
Kcira, D.0000-0002-8190-2414
Newman, H. B.0000-0003-0964-1480
Rogan, C.0000-0002-4166-4503
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© 2010 CERN, for the benefit of the CMS Collaboration. Published for SISSA by Springer. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Received: September 22, 2010; Accepted: September 23, 2010; Published: September 27, 2010. We thank the technical and administrative sta at CERN and other CMS institutes. This work was supported by the Austrian Federal Ministry of Science and Research; the Belgium Fonds de la Recherche Scientique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport; the Research Promotion Foundation, Cyprus; the Estonian Academy of Sciences and NICPB; the Academy of Finland, Finnish Ministry of Education, and Helsinki Institute of Physics; the Institut National de Physique Nucleaire et de Physique des Particules / CNRS, and Commissariat a l'Energie Atomique, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientic Research Foundation, and National Oce for Research and Technology, Hungary; the Department of Atomic Energy, and Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Pakistan Atomic Energy Commission; the State Commission for Scientic Research, Poland; the Fundação para a Cíencia e a Tecnologia, Portugal; JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); the Ministry of Science and Technologies of the Russian Federation, and Russian Ministry of Atomic Energy; the Ministry of Science and Technological Development of Serbia; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Scientic and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, UK; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie IEF program (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; and the Associazione per lo Sviluppo Scientico e Tecnologico del Piemonte (Italy).
Funders:
Funding AgencyGrant Number
Austrian Federal Ministry of Science and ResearchUNSPECIFIED
Belgium Fonds de la Recherche ScientifiqueUNSPECIFIED
Fonds voor Wetenschappelijk OnderzoekUNSPECIFIED
CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) (Brazil)UNSPECIFIED
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) (Brazil)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)UNSPECIFIED
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)UNSPECIFIED
Bulgarian Ministry of Education and ScienceUNSPECIFIED
European Organization for Nuclear Researc (CERN)UNSPECIFIED
Chinese Academy of SciencesUNSPECIFIED
Ministry of Science and TechnologyUNSPECIFIED
National Natural Science Foundation of ChinaUNSPECIFIED
Colombian Funding Agency (COLCIENCIAS)UNSPECIFIED
Croatian Ministry of Science, Education and SportUNSPECIFIED
Research Promotion Foundation (Cyprus)UNSPECIFIED
Estonian Academy of Sciences and NICPBUNSPECIFIED
Academy of Finland, Finnish Ministry of Education, and Helsinki Institute of PhysicsUNSPECIFIED
Institut National de Physique Nucleaire et de Physique des Particules (CNRS)UNSPECIFIED
Commissariat a l'Energie Atomique (France)UNSPECIFIED
Bundesministerium fur Bildung und Forschung (Germany)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG) (Germany)UNSPECIFIED
Helmholtz-Gemeinschaft Deutscher Forschungszentren (Germany)UNSPECIFIED
General Secretariat for Research and Technology (Greece)UNSPECIFIED
National Scientific Research Foundation, and National Office for Research and Technology (Hungary)UNSPECIFIED
Department of Atomic Energy, and Department of Science and Technology (India)UNSPECIFIED
Institute for Studies in Theoretical Physics and Mathematics (Iran)UNSPECIFIED
Science Foundation (Ireland)UNSPECIFIED
Istituto Nazionale di Fisica Nucleare (Italy)UNSPECIFIED
Korean Ministry of Education, Science and TechnologyUNSPECIFIED
World Class University program of NRF (Korea)UNSPECIFIED
Lithuanian Academy of SciencesUNSPECIFIED
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) (Mexico)UNSPECIFIED
Consejo Nacional de Ciencia y Tecnología (CONACyT) (Mexico)UNSPECIFIED
Secretaría de Educación Pública (SEP) (Mexico)UNSPECIFIED
Universidad Autónoma de San Luis Potosí (UASLP-FAI) (Mexico)UNSPECIFIED
Pakistan Atomic Energy CommissionUNSPECIFIED
State Commission for Scientific Research (Poland)UNSPECIFIED
Fundacao para a Ciencia e a Tecnologia (Portugal)UNSPECIFIED
Joint Institute for Nuclear Research (JINR) (Armenia)UNSPECIFIED
Joint Institute for Nuclear Research (JINR) (Belarus)UNSPECIFIED
Joint Institute for Nuclear Research (JINR) (Georgia)UNSPECIFIED
Joint Institute for Nuclear Research (JINR) (Ukraine)UNSPECIFIED
Joint Institute for Nuclear Research (JINR) (Uzbekistan)UNSPECIFIED
Ministry of Science and Technologies of the Russian FederationUNSPECIFIED
Russian Ministry of Atomic EnergyUNSPECIFIED
Ministry of Science and Technological Development of SerbiaUNSPECIFIED
Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio (Spain)UNSPECIFIED
ETH BoardUNSPECIFIED
ETH ZurichUNSPECIFIED
PSIUNSPECIFIED
SNFUNSPECIFIED
Universität Zürich (UniZH)UNSPECIFIED
Canton ZurichUNSPECIFIED
SERUNSPECIFIED
National Science Council (Taipei)UNSPECIFIED
Scientific and Technical Research Council of TurkeyUNSPECIFIED
Turkish Atomic Energy AuthorityUNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
European UnionUNSPECIFIED
Leventis FoundationUNSPECIFIED
A. P. Sloan FoundationUNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy)UNSPECIFIED
Subject Keywords:Hadron-Hadron Scattering
Issue or Number:9
Record Number:CaltechAUTHORS:20101130-132602008
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20101130-132602008
Usage Policy:This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
ID Code:21068
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Dec 2010 00:46
Last Modified:09 Mar 2020 13:19

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