Strange hadron collectivity in pPb and PbPb collisions

The CMS collaboration [email protected], The CMS collaboration [email protected]

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

The collective behavior of KS0 and Λ/Λ¯ strange hadrons is studied by measuring the elliptic azimuthal anisotropy (v2) using the scalar-product and multiparticle correlation methods. Proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy sNN = 8.16 TeV and lead-lead (PbPb) collisions at sNN = 5.02 TeV collected by the CMS experiment at the LHC are investigated. Nonflow effects in the pPb collisions are studied by using a subevent cumulant analysis and by excluding events where a jet with transverse momentum greater than 20 GeV is present. The strange hadron v2 values extracted in pPb collisions via the four- and six-particle correlation method are found to be nearly identical, suggesting the collective behavior. Comparisons of the pPb and PbPb results for both strange hadrons and charged particles illustrate how event-by-event flow fluctuations depend on the system size.

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文章編號7
期刊Journal of High Energy Physics
2023
發行號5
DOIs
出版狀態已出版 - 5月 2023

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