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Light (anti)nuclei production in Cu+Cu collisions at \(\sqrt{s_{NN}} = 200\) GeV

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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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Authors and Affiliations

  1. Institute of Geophysics and Geomatics, China University of Geosciences, 430074, Wuhan, China

    Feng-xian Liu, Gang Chen & Zhi-lei Zhe

  2. School of Mathematics and Physics, China University of Geosciences, 430074, Wuhan, China

    Feng-xian Liu, Gang Chen, Zhi-lei Zhe & Yi-long Xie

  3. Institute of Particle Physics, Central China Normal University, 430079, Wuhan, China

    Dai-mei Zhou

Authors
  1. Feng-xian Liu
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  2. Gang Chen
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  3. Zhi-lei Zhe
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  4. Dai-mei Zhou
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  5. Yi-long Xie
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Correspondence to Gang Chen.

Additional information

Communicated by Xin-Nian Wang

Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated during this study are contained in this published article.]

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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

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