Strange particle collectivity in pPb and PbPb

Collaboration
2021
20 pages
  • Published: 2021
Report number:
  • CMS-PAS-HIN-19-004,
  • CMS-PAS-HIN-19-004
Experiments:

Citations per year

202020212022012
Abstract: (CDS)
The collective behavior of KS0\mathrm{K^0_S} and Λ/Λˉ\Lambda/\bar{\Lambda} strange hadrons is studied using the scalar-product and multiparticle correlation methods. Proton-lead (pPb) collisions at 8.16 TeV and lead-lead collisions at 5.02 TeV are studied. The data samples were collected by the CMS experiment at the CERN LHC. Nonflow effects in the pPb collisions are investigated by a subevent cumulant analysis and by including a veto on events where a jet with pT>20p_{\mathrm{T}} > 20 GeV is observed. For the first time, the collectivity of strange particles is observed in proton-lead collisions. A comparison of the proton-lead and lead-lead results for both strange particles and charged-hadrons is used to show how flow fluctuations are affected by system size.
Note:
  • Preliminary results
  • Preliminary results
  • Monte-Carlo
  • flow: fluctuation
  • strange particle: production
  • quark gluon: plasma
  • heavy ion: scattering
  • CERN LHC Coll
  • p nucleus: scattering
  • numerical calculations: Monte Carlo
  • correlation: long-range
  • collective: flow