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Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+ Au, Cu + Cu, and Au + Au collisions at sNN =200 GeV

Abelev, B.
•
Adamczyk, L.
•
Adkins, J. K.
altro
Zyzak, M.
2016
  • journal article

Periodico
PHYSICAL REVIEW C
Abstract
We present measurements of the near side of triggered di-hadron correlations using neutral strange baryons (Λ,Λ ̄) and mesons (KS0) at intermediate transverse momentum (3 < pT <6 GeV/c) to look for possible flavor and baryon-meson dependence. This study is performed in d+Au, Cu+Cu, and Au+Au collisions at sNN=200 GeV measured by the STAR experiment at RHIC. The near-side di-hadron correlation contains two structures, a peak which is narrow in azimuth and pseudorapidity consistent with correlations from jet fragmentation, and a correlation in azimuth which is broad in pseudorapidity. The particle composition of the jet-like correlation is determined using identified associated particles. The dependence of the conditional yield of the jet-like correlation on the trigger particle momentum, associated particle momentum, and centrality for correlations with unidentified trigger particles are presented. The neutral strange particle composition in jet-like correlations with unidentified charged particle triggers is not well described by PYTHIA. However, the yield of unidentified particles in jet-like correlations with neutral strange particle triggers is described reasonably well by the same model.
DOI
10.1103/PhysRevC.94.014910
WOS
WOS:000381490400004
Archivio
http://hdl.handle.net/11368/2941930
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84980021895
http://harvest.aps.org/bagit/articles/10.1103/PhysRevC.94.014910/apsxml
Diritti
closed access
license:copyright editore
FVG url
https://arts.units.it/request-item?handle=11368/2941930
Soggetti
  • Nuclear and High Ener...

  • quark gluon plasma

  • RHIC

  • STAR

Web of Science© citazioni
4
Data di acquisizione
Mar 27, 2024
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