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dc.contributor.authorALICE Collaboration
dc.date.accessioned2019-10-24T07:50:02Z
dc.date.available2019-10-24T07:50:02Z
dc.date.issued2019
dc.identifier.citationALICE Collaboration (2019). Investigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p−Pb, Xe-Xe, and Pb-Pb Collisions at the LHC. Physical Review Letters, 123 (14), 142301. DOI: 10.1103/PhysRevLett.123.142301
dc.identifier.otherCONVID_33301508
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/66017
dc.description.abstractMeasurements of anisotropic flow coefficients (vn) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of pp at √s=13  TeV, p−Pb at a center-of-mass energy per nucleon pair √sNN=5.02  TeV, Xe-Xe at √sNN=5.44  TeV, and Pb-Pb at √sNN=5.02  TeV recorded with the ALICE detector. The multiplicity dependence of vn is studied in a very wide range from 20 to 3000 particles produced in the midrapidity region |η|<0.8 for the transverse momentum range 0.2v3>v4 is found in pp and p−Pb collisions, similar to that seen in large collision systems, while a weak v2 multiplicity dependence is observed relative to nucleus-nucleus collisions in the same multiplicity range. Using a novel subevent method, v2 measured with four-particle cumulants is found to be compatible with that from six-particle cumulants in pp and p−Pb collisions. The magnitude of the correlation between v2n and v2m, evaluated with the symmetric cumulants SC(m,n) is observed to be positive at all multiplicities for v2 and v4, while for v2 and v3 it is negative and changes sign for multiplicities below 100, which may indicate a different vn fluctuation pattern in this multiplicity range. The observed long-range multiparticle azimuthal correlations in high multiplicity pp and p−Pb collisions can neither be described by pythia 8 nor by impact-parameter-Glasma, music, and ultrarelativistic quantum molecular dynamics model calculations, and hence, provide new insights into the understanding of collective effects in small collision systems.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review Letters
dc.rightsCC BY 4.0
dc.titleInvestigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p−Pb, Xe-Xe, and Pb-Pb Collisions at the LHC
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201910244582
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn0031-9007
dc.relation.numberinseries14
dc.relation.volume123
dc.type.versionpublishedVersion
dc.rights.copyright© 2019 CERN, for the ALICE Collaboration
dc.rights.accesslevelopenAccessfi
dc.subject.ysohiukkasfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/PhysRevLett.123.142301


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