Abstract
We present measurements of second-order azimuthal anisotropy at midrapidity for light nuclei (for , 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV) and antinuclei (, 62.4, 39, 27, and 19.6 GeV) and ( GeV) in the STAR (Solenoidal Tracker at RHIC) experiment. The for these light nuclei produced in heavy-ion collisions is compared with those for and . We observe mass ordering in nuclei at low transverse momenta ( GeV/). We also find a centrality dependence of for and . The magnitude of for and agree within statistical errors. Light-nuclei are compared with predictions from a blast-wave model. Atomic mass number scaling of light-nuclei seems to hold for . Results on light-nuclei from a transport-plus-coalescence model are consistent with the experimental measurements.
3 More- Received 26 January 2016
DOI:https://doi.org/10.1103/PhysRevC.94.034908
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