  Two-pion correlations in sqrt(s_NN)=130 GeV Au+Au collisions at RHIC have
been measured over a broad range of pair transverse momentum k_T by the PHENIX
experiment at RHIC. The k_T dependent transverse radii are similar to results
from heavy ion collisions at sqrt(s_NN) = 4.1, 4.9, and 17.3 GeV, whereas the
longitudinal radius increases monotonically with beam energy. The ratio of the
outwards to sidewards transverse radii (R_out/R_side) is consistent with unity
and independent of k_T.
