Journal article
Evidence for Collective Multiparticle Correlations in p−Pb Collisions
Physical review letters, Vol.115(1), 012301
06/29/2015
DOI: 10.1103/PhysRevLett.115.012301
PMID: 26182092
Abstract
The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p−Pb and PbPb collisions over a wide pseudorapidity (η) range based on correlations among six or more charged particles. The p-Pb data, corresponding to an integrated luminosity of 35 nb−1, were collected during the 2013 LHC p-Pb run at a nucleon-nucleon center-of-mass energy of 5.02 TeV by the CMS experiment. A sample of semiperipheral PbPb collision data at sNN−−−√=2.76 TeV, corresponding to an integrated luminosity of 2.5 μb−1 and covering a similar range of particle multiplicities as the p−Pb data, is also analyzed for comparison. The six- and eight-particle cumulant and the Lee-Yang zeros methods are used to extract the v2 coefficients, extending previous studies of two- and four-particle correlations. For both the p−Pb and PbPb systems, the v2 values obtained with correlations among more than four particles are consistent with previously published four-particle results. These data support the interpretation of a collective origin for the previously observed long-range (large Δη) correlations in both systems. The ratios of v2 values corresponding to correlations including different numbers of particles are compared to theoretical predictions that assume a hydrodynamic behavior of a p−Pb system dominated by fluctuations in the positions of participant nucleons. These results provide new insights into the multiparticle dynamics of collision systems with a very small overlapping region.
Details
- Title: Subtitle
- Evidence for Collective Multiparticle Correlations in p−Pb Collisions
- Creators
- CMS CollaborationYasar Onel - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.115(1), 012301
- DOI
- 10.1103/PhysRevLett.115.012301
- PMID
- 26182092
- NLM abbreviation
- Phys Rev Lett
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Publisher
- American Physical Society
- Grant note
- DOI: 10.13039/501100003413, name: Bundesministerium für Wissenschaft, Forschung und Wirtschaft; DOI: 10.13039/501100002428, name: Austrian Science Fund; DOI: 10.13039/501100002661, name: Fonds De La Recherche Scientifique - FNRS; DOI: 10.13039/501100003130, name: Fonds Wetenschappelijk Onderzoek; DOI: 10.13039/501100003593, name: Conselho Nacional de Desenvolvimento Científico e Tecnológico; DOI: 10.13039/501100002322, name: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; DOI: 10.13039/501100004586, name: Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro; DOI: 10.13039/501100001807, name: Fundação de Amparo à Pesquisa do Estado de São Paulo; DOI: 10.13039/501100005992, name: Ministry of Education and Science; DOI: 10.13039/501100002367, name: Chinese Academy of Sciences; DOI: 10.13039/501100004663, name: Ministry of Science and Technology, Taiwan; DOI: 10.13039/501100001809, name: National Natural Science Foundation of China; DOI: 10.13039/100007637, name: Departamento Administrativo de Ciencia, Tecnologia e Innovacion; DOI: 10.13039/501100001810, name: Research Promotion Foundation; DOI: 10.13039/501100002341, name: Suomen Akatemia; DOI: 10.13039/501100000090, name: Mountain Equipment Co-op; DOI: 10.13039/100001169, name: Hispanics in Philanthropy; DOI: 10.13039/501100002347, name: Bundesministerium für Bildung und Forschung; DOI: 10.13039/501100001659, name: Deutsche Forschungsgemeinschaft; DOI: 10.13039/100003872, name: Human Growth Foundation; DOI: 10.13039/501100003448, name: General Secretariat for Research and Technology; DOI: 10.13039/501100003549, name: Országos Tudományos Kutatási Alapprogramok; DOI: 10.13039/100000002, name: National Institutes of Health; DOI: 10.13039/501100001502, name: Department of Atomic Energy, Government of India; DOI: 10.13039/501100001409, name: Department of Science and Technology, Ministry of Science and Technology; DOI: 10.13039/501100004152, name: Instituto Politécnico de Macau; DOI: 10.13039/501100001602, name: Science Foundation Ireland; DOI: 10.13039/501100004007, name: Istituto Nazionale di Fisica Nucleare; DOI: 10.13039/501100003621, name: Ministry of Science, ICT and Future Planning; DOI: 10.13039/501100003725, name: National Research Foundation of Korea; DOI: 10.13039/501100003562, name: Ministry of Environment; DOI: 10.13039/501100004733, name: Universidade de Macau; DOI: 10.13039/501100003141, name: Consejo Nacional de Ciencia y Tecnología; DOI: 10.13039/501100003524, name: Ministry of Business, Innovation and Employment; DOI: 10.13039/501100001868, name: National Science Council Taiwan; DOI: 10.13039/501100001871, name: Fundação para a Ciência e a Tecnologia; DOI: 10.13039/501100003822, name: Joint Institute for Nuclear Research; DOI: 10.13039/501100002674, name: Russian Academy of Sciences; DOI: 10.13039/501100002261, name: Russian Foundation for Basic Research; DOI: 10.13039/501100004192, name: National Science and Technology Development Agency; DOI: 10.13039/501100004410, name: Türkiye Bilimsel ve Teknolojik Arastirma Kurumu; DOI: 10.13039/501100004742, name: National Academy of Sciences of Ukraine; DOI: 10.13039/501100000271, name: Science and Technology Facilities Council; DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100000001, name: National Science Foundation; DOI: 10.13039/501100001865, name: Latvijas Zinatnu Akademija; name: MSES; name: CSF; name: MoER; name: ERC IUT; DOI: 10.13039/501100008530, name: ERDF; name: CEA; name: CNRS/IN2P3; DOI: 10.13039/501100008688, name: CINVESTAV; name: SEP; name: UASLP-FAI; DOI: 10.13039/501100008689, name: PAEC; name: MSHE; name: MON; DOI: 10.13039/501100008687, name: RosAtom; name: MESTD; DOI: 10.13039/100010440, name: TAEK; DOI: 10.13039/501100008690, name: SFFR
- Language
- English
- Date published
- 06/29/2015
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428795402771
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