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dc.contributor.authorCMS Collaboration
Adair, A.
Akgun, B.
Ecklund, K.M.
Geurts, F.J.M.
Li, W.
Michlin, B.
Padley, B.P.
Redjimi, R.
Roberts, J.
Zabel, J.
dc.date.accessioned 2015-04-20T14:31:33Z
dc.date.available 2015-04-20T14:31:33Z
dc.date.issued 2015
dc.identifier.citation CMS Collaboration, Adair, A., Akgun, B., et al.. "Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies." Physics Letters B, 742, (2015) Elsevier: 200-224. http://dx.doi.org/10.1016/j.physletb.2015.01.034.
dc.identifier.urihttps://hdl.handle.net/1911/79478
dc.description.abstract Measurements of two-particle angular correlations between an identified strange hadron (KS0 or Λ/Λ¯) and a charged particle, emitted in pPb collisions, are presented over a wide range in pseudorapidity and full azimuth. The data, corresponding to an integrated luminosity of approximately 35 nb−1, were collected at a nucleon–nucleon center-of-mass energy (√sNN) of 5.02 TeV with the CMS detector at the LHC. The results are compared to semi-peripheral PbPb collision data at √sNN=2.76 TeV, covering similar charged-particle multiplicities in the events. The observed azimuthal correlations at large relative pseudorapidity are used to extract the second-order (v2) and third-order (v3) anisotropy harmonics of View the MathML sourceKS0 and Λ/Λ¯ particles. These quantities are studied as a function of the charged-particle multiplicity in the event and the transverse momentum of the particles. For high-multiplicity pPb events, a clear particle species dependence of v2 and v3 is observed. For pT<2 GeV, the v2 and v3 values of KS0 particles are larger than those of Λ/Λ¯ particles at the same pT. This splitting effect between two particle species is found to be stronger in pPb than in PbPb collisions in the same multiplicity range. When divided by the number of constituent quarks and compared at the same transverse kinetic energy per quark, both v2 and v3 for KS0 particles are observed to be consistent with those for Λ/Λ¯ particles at the 10% level in pPb collisions. This consistency extends over a wide range of particle transverse kinetic energy and event multiplicities.
dc.language.iso eng
dc.publisher Elsevier
dc.rightsThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.title Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies
dc.type Journal article
dc.citation.journalTitle Physics Letters B
dc.subject.keywordCMS
ridge
long-range
correlations
flow
high-multiplicity
dc.citation.volumeNumber 742
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1016/j.physletb.2015.01.034
dc.type.publication publisher version
dc.citation.firstpage 200
dc.citation.lastpage 224


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This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Except where otherwise noted, this item's license is described as This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)