Centrality dependence of light (anti)nuclei and (anti)hypertriton production in Au+Au collisions at √s_\rmNN = 200 GeV

2013/07/17 by Gang Chen, Huan Chen, Juan Wu +2 · 1 citation
Physics and Astronomy · #nucl-th #msc:14J30 #acm:14J30

paper · pdf · doi:10.1103/physrevc.88.034908

published as Physical Review C 88, 034908 (2013) · 6 pages, 4 figures. arXiv admin note: text overlap with arXiv:1209.4182

arxiv created 2013/07/17 · arxiv updated 2014/09/30

Abstract

We have used the dynamically constrained phase space coalescence model to investigate the centrality dependence of light (anti)nuclei and (anti)hypertriton production based on the 6.2× 10⁷ hadronic final states generated by the PACIAE model in Au+Au collisions at √s_\rmNN=200 GeV in |y| <1 and p_T<5 acceptances. It turned out that the yields of light (anti)nuclei and (anti)hypertriton strongly depend on the centrality, i.e. their yields decrease rapidly with the increase of centrality bins; but their yield ratios are independent on centrality. These theoretical results are consistent with the STAR and PHENIX data. Furthermore, centrality distribution of d ( d), ³He (³He) and _Λ³H (_Λ³H) follows Gaussian distributions. This means that light (anti)nuclei and (anti)hypertriton are primarily produced in the central collisions.

Citations

• Antimatter production in central Au+Au collisions atsNN=200GeV

Cited by

• Scaling Properties of light (anti)nuclei and (anti)hypertriton production in Au+Au collisions at √s_\rmNN = 200 GeV

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