Strange hadron collectivity in pPb and PbPb collisions

  • Freya Blekman (Creator)
  • Emil Sørensen Bols (Creator)
  • Jorgen D'Hondt (Creator)
  • Martin Delcourt (Creator)
  • Hesham El Faham (Creator)
  • Steven Lowette (Creator)
  • Seth Moortgat (Creator)
  • Alexander Morton (Creator)
  • Abanti Ranadhir Sahasransu (Creator)
  • Denise Müller (Creator)
  • Stefaan Tavernier (Creator)
  • Walter Van Doninck (Creator)
  • Petra Van Mulders (Creator)
  • Nicolas Stylianou (Creator)

Dataset

Abstract

The collective behavior of K
0
S 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
√s
NN = 8.16 TeV and lead-lead (PbPb) collisions at √s
NN = 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.
Date made available20 May 2022
PublisherHEPData

Keywords

  • hep-ex

Format

  • Format
  • json
  • csv

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  • Strange hadron collectivity in pPb and PbPb collisions

    CMS Collaboration, 2 May 2023, In: JHEP. 2023, 5, 43 p., 7.

    Research output: Contribution to journal › Article › peer-review

    Open Access
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    4 Citations (Scopus)
    9 Downloads (Pure)

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