Strange particle collectivity in pPb and PbPb - INSPIRE

DataBETA

Strange particle collectivity in pPb and PbPb

CMS

Collaboration

2021

20 pages

Published: 2021

Report number:

CMS-PAS-HIN-19-004,
CMS-PAS-HIN-19-004

Experiments:

CERN-LHC-CMS,
CERN-LHC-CMS

View in:

CERN Document Server

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Abstract: (CDS)

The collective behavior of

\mathrm{K^0_S}

and

\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

p_{\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

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Figures(20)

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