Anti-deuteron and anti-He-3 production in s(NN)**(1/2) = 130-GeV Au+Au collisions

The STAR collaboration
Phys.Rev.Lett. 87 (2001) 262301, 2001.

Abstract (data abstract)
The first measurements of light antinucleus production in Au+Au collisions at the Relativistic Heavy-Ion Collider are reported. The observed production rates for $\overline{d}$ and $^3\overline{\mathrm{He}}$ are much larger than in lower energy nucleus-nucleus collisions. A coalescence model analysis of the yields indicates that there is little or no increase in the antinucleon freeze-out volume compared to collisions at CERN SPS energy. These analyses also indicate that the $^3\overline{\mathrm{He}}$ freeze-out volume is smaller than the $\overline{d}$ freeze-out volume.

  • Figure 2.0

    Data from Figure 2.0

    10.17182/hepdata.102316.v1/t1

    Coalescence parameters $B_2$ and $B_3$ in Au+Au collisions at 130 GeV.

  • Table 1.0

    Data from Table 1.0

    10.17182/hepdata.102316.v1/t2

    Invariant yields of $\overline{d}$ and $\overline{p}$. Systematic errors are estimated to be 15%.

  • Table 1.1

    Data from Table 1.0

    10.17182/hepdata.102316.v1/t3

    Invariant yields of $^3\overline{\mathrm{He}}$ and $\overline{p}$. Systematic errors are estimated to be 15%.

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