Abstract.
The production of light (anti)nuclei is investigated using the dynamically constrained phase-space coalescence model based on the final-state hadrons generated by the PACIAE model in Cu+Cu collisions at \( \sqrt{s_{\mathrm{NN}}}=200\) GeV with \( \vert\eta\vert < 0.5\) and \( 0 < p_{T} < 8\) GeV/c. The results show that there is a strong centrality dependence of yields of d, \( \overline{d}\), 3He, \({}^{3}\overline{\mathrm{He}}\), 4He, and \({}^{4}\overline{\mathrm{He}}\), i.e., their yields decrease rapidly with the increase of centrality, and the greater the mass, the greater the dependence, whereas their ratios of antinucleus to nucleus remain constant as the centrality increases. The coalescence parameter \( B_{A}\) lightly decreases with the increasing of \( N_{part}\). In addition, the yields of (anti)nuclei are strongly dependent on the mass of the (anti)nuclei, indicating that the (anti)nuclei produced have mass scaling properties in high-energy heavy-ion collisions. Our results are consistent with the STAR experimental data.
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Communicated by Xin-Nian Wang
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Liu, Fx., Chen, G., Zhe, Zl. et al. Light (anti)nuclei production in Cu+Cu collisions at \(\sqrt{s_{NN}} = 200\) GeV. Eur. Phys. J. A 55, 160 (2019). https://doi.org/10.1140/epja/i2019-12851-x
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DOI: https://doi.org/10.1140/epja/i2019-12851-x