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 |
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Article number | 014910 |
Journal | Physical Review C |
Volume | 94 |
Issue number | 1 |
DOIs | |
State | Published - Jul 28 2016 |
Bibliographical note
Publisher Copyright:© 2016 American Physical Society.
Funding
We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, the KISTI Center in Korea, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. NSF, the Ministry of Education and Science of the Russian Federation, NSFC, CAS, MoST, and MoE of China, the National Research Foundation of Korea, NCKU (Taiwan), GA and MSMT of the Czech Republic, FIAS of Germany, DAE, DST, and UGC of India, the National Science Centre of Poland, National Research Foundation, the Ministry of Science, Education and Sports of the Republic of Croatia, and RosAtom of Russia.
Funders | Funder number |
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KISTI Center in Korea | |
MoE of China | |
RHIC Operations Group | |
RosAtom of Russia | |
National Science Foundation Arctic Social Science Program | 1352081, 1206009, 1505716 |
National Science Foundation Arctic Social Science Program | |
Office of Science Programs | |
Institute for Nuclear Physics | |
National Research Foundation South African Research Chair | |
Department of Science and Technology, Ministry of Science and Technology, India | |
University Grants Commission | |
Government of India, Department of Atomic Energy | |
National Natural Science Foundation of P.R. China | |
Ministerstvo Školství, Mládeže a Tělovýchovy | |
Chinese Academy of Sciences | |
Ministarstvo Obrazovanja, Znanosti i Sporta | |
Ministry for Education and Science of the Russian Federation | |
National Research Foundation of Korea | |
Narodowe Centrum Nauki | |
Ministry of Science and Technology, Taiwan | |
National Cheng Kung University Hospital | |
Raincoast Conservation Foundation |
ASJC Scopus subject areas
- Nuclear and High Energy Physics