  We report results on the ratio of mid-rapidity anti-proton to proton yields
in Au+Au collisions at $\rts = 130$ GeV per nucleon pair as measured by the
STAR experiment at RHIC. Within the rapidity and transverse momentum range of
$|y|<0.5$ and 0.4 $<p_t<$ 1.0 GeV/$c$, the ratio is essentially independent of
either transverse momentum or rapidity, with an average of $0.65\pm 0.01_{\rm
(stat.)} \pm 0.07_{\rm (syst.)}$ for minimum bias collisions. Within errors, no
strong centrality dependence is observed. The results indicate that at this
RHIC energy, although the $p$-$\pb$ pair production becomes important at
mid-rapidity, a significant excess of baryons over anti-baryons is still
present.
