Deuteron and antideuteron production in Au + Au collisions at s(NN)**(1/2) = 200-GeV.

The PHENIX collaboration
Phys.Rev.Lett. 94 (2005) 122302, 2005.

Abstract (data abstract)
The production of deuterons and antideuterons in the transverse momentum range 1.1 < $p_T$ < GeV/$c$ at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis comparing the deuteron and antideuteron spectra with those of protons and antiprotons, has been performed. The coalescence probability is equal for both deuterons and antideuterons and increases as a function of $p_T$, which is consistent with an expanding collision zone. Comparing (anti)proton yields $\bar{p}$/$p$ = 0.73 $\pm$ 0.01, with (anti)deuteron yields: $\bar{d}$/$d$ = 0.47 $\pm$ 0.03, we estimate that $\bar{n}$/n = 0.64 $\pm$ 0.04.

  • Figure 2a

    Data from Fig. 2 of PRL 94, 122302 (2005)

    10.17182/hepdata.141740.v1/t1

    Corrected spectra for deuterons and anti-deuterons for different centralities are plotted vs $m_T$.

  • Figure 2b

    Data from Fig. 2 of PRL 94, 122302 (2005)

    10.17182/hepdata.141740.v1/t2

    Corrected spectra for deuterons and anti-deuterons for different centralities are plotted vs $m_T$.

  • Figure 3

    Data from Fig. 3 of PRL 94, 122302 (2005)

    10.17182/hepdata.141740.v1/t3

    Coalescence parameter $B_2$ vs $p_T$ for deuterons (left panel) and anti-deuterons (right panel). Grey bands indicate the systematic errors. Values...

  • Figure 5

    Data from Fig. 5 of PRL 94, 122302 (2005)

    10.17182/hepdata.141740.v1/t4

    $\bar{d}/d$ ratio vs. $p_T$ for minimum bias data.

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