Abstract
We present measurements of second-order azimuthal anisotropy (v2) at midrapidity (|y|<1.0) for light nuclei d,t,He3 (for sNN=200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV) and antinuclei d; (sNN=200, 62.4, 39, 27, and 19.6 GeV) and Hē3 (sNN=200 GeV) in the STAR (Solenoidal Tracker at RHIC) experiment. The v2 for these light nuclei produced in heavy-ion collisions is compared with those for p and p. We observe mass ordering in nuclei v2(pT) at low transverse momenta (pT<2.0 GeV/c). We also find a centrality dependence of v2 for d and d. The magnitude of v2 for t and He3 agree within statistical errors. Light-nuclei v2 are compared with predictions from a blast-wave model. Atomic mass number (A) scaling of light-nuclei v2(pT) seems to hold for pT/A<1.5GeV/c. Results on light-nuclei v2 from a transport-plus-coalescence model are consistent with the experimental measurements.
Original language | English |
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Article number | 034908 |
Journal | Physical Review C |
Volume | 94 |
Issue number | 3 |
DOIs | |
State | Published - Sep 23 2016 |
Bibliographical note
Publisher Copyright:© 2016 American Physical Society.
Funding
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. This work is supported by the DAE-BRNS project Grant No. 2010/21/15-BRNS/2026.
Funders | Funder number |
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RosAtom of Russia | |
National Science Foundation Arctic Social Science Program | 1352081, 1613939 |
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 | |
Ministry of Science and Technology of the People's Republic of China | |
Ministarstvo Obrazovanja, Znanosti i Sporta | |
Ministry for Education and Science of the Russian Federation | |
National Research Foundation of Korea | |
Narodowe Centrum Nauki | |
National Cheng Kung University Hospital | |
Board of Research in Nuclear Sciences | 2010/21/15-BRNS/2026 |
Board of Research in Nuclear Sciences |
ASJC Scopus subject areas
- Nuclear and High Energy Physics