Measurement of inclusive anti-protons from Au+Au collisions at (s(NN))**(1/2) = 130-GeV

The collaboration
Phys.Rev.Lett. 87 (2001) 262302, 2001.

Abstract (data abstract)
We report the first measurement of inclusive antiproton production at mid-rapidity in Au+Au collisions at 130 GeV by the STAR experiment at RHIC. The antiproton transverse mass distributions in the measured transverse momentum range of 0.25 < pT < 0.95 GeV/c are found to fall less steeply for more central collisions. The extrapolated antiproton rapidity density is found to scale approximately with the negative hadron multiplicity density.

• Figure 2

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Tranverse mass distributions for different centralities

• Figure 3a

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Antiproton fit parameters and yields. Systematic errors are 10%.

• Figure 3b

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Antiproton fit parameters and yields. Systematic errors are 10%.

• Figure 3c

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Antiproton fit parameters and yields. Systematic errors are 10%.