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

STAR Collaboration

doi:10.1103/PhysRevC.94.014910

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

STAR Collaboration

Stony Brook University

Yale University
AGH University of Krakow
University of Kentucky
Joint Institute for Nuclear Research
Panjab University
Variable Energy Cyclotron Centre India
Alikhanov Institute for Theoretical and Experimental Physics
Brookhaven National Laboratory
Tsinghua University
Central China Normal University
National Institute of Science Education and Research
University of Birmingham
University of Houston
University of Jammu
University of Texas at Austin
Czech Technical University in Prague
Czech Academy of Sciences
Kent State University
Rice University
Moscow Engineering Physics Institute
University of California at Davis
Ohio State University
Texas A&M University
Chinese Academy of Sciences
CAS - Institute of Modern Physics
Creighton University
Lawrence Berkeley National Laboratory
University of California at Berkeley
Institute of Physics Bhubaneswar

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

4 Scopus citations

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.

Original language	English
Article number	014910
Journal	Physical Review C
Volume	94
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.94.014910
State	Published - Jul 28 2016

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10.1103/PhysRevC.94.014910

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@article{fbff7c3a47a64e5f8ab6405348a9d8b1,

title = "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",

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.",

author = "\{STAR Collaboration\} and B. Abelev and L. Adamczyk and Adkins, \{J. K.\} and G. Agakishiev and Aggarwal, \{M. M.\} and Z. Ahammed and I. Alekseev and A. Aparin and D. Arkhipkin and Aschenauer, \{E. C.\} and Ashraf, \{M. U.\} and A. Attri and Averichev, \{G. S.\} and X. Bai and V. Bairathi and Barnby, \{L. S.\} and R. Bellwied and A. Bhasin and Bhati, \{A. K.\} and P. Bhattarai and J. Bielcik and J. Bielcikova and Bland, \{L. C.\} and M. Bombara and Bordyuzhin, \{I. G.\} and J. Bouchet and Brandenburg, \{J. D.\} and Brandin, \{A. V.\} and I. Bunzarov and J. Butterworth and H. Caines and \{Calder{\'o}n De La Barca S{\'a}nchez\}, M. and Campbell, \{J. M.\} and D. Cebra and I. Chakaberia and P. Chaloupka and Z. Chang and A. Chatterjee and S. Chattopadhyay and Chen, \{J. H.\} and X. Chen and J. Cheng and M. Cherney and W. Christie and G. Contin and Crawford, \{H. J.\} and S. Das and \{De Silva\}, \{L. C.\} and R. Esha and J. Jia",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = jul,

day = "28",

doi = "10.1103/PhysRevC.94.014910",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - 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

AU - STAR Collaboration

AU - Abelev, B.

AU - Adamczyk, L.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Alekseev, I.

AU - Aparin, A.

AU - Arkhipkin, D.

AU - Aschenauer, E. C.

AU - Ashraf, M. U.

AU - Attri, A.

AU - Averichev, G. S.

AU - Bai, X.

AU - Bairathi, V.

AU - Barnby, L. S.

AU - Bellwied, R.

AU - Bhasin, A.

AU - Bhati, A. K.

AU - Bhattarai, P.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Bland, L. C.

AU - Bombara, M.

AU - Bordyuzhin, I. G.

AU - Bouchet, J.

AU - Brandenburg, J. D.

AU - Brandin, A. V.

AU - Bunzarov, I.

AU - Butterworth, J.

AU - Caines, H.

AU - Calderón De La Barca Sánchez, M.

AU - Campbell, J. M.

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chang, Z.

AU - Chatterjee, A.

AU - Chattopadhyay, S.

AU - Chen, J. H.

AU - Chen, X.

AU - Cheng, J.

AU - Cherney, M.

AU - Christie, W.

AU - Contin, G.

AU - Crawford, H. J.

AU - Das, S.

AU - De Silva, L. C.

AU - Esha, R.

AU - Jia, J.

PY - 2016/7/28

Y1 - 2016/7/28

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84980021895

U2 - 10.1103/PhysRevC.94.014910

DO - 10.1103/PhysRevC.94.014910

M3 - Article

SN - 2469-9985

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014910

ER -

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

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