Abstract
The three-pion Hanbury Brown-Twiss (HBT) results for √S NN=130 GeV data at STAR were presented. It was shown that for the central multiplicity class the STAR data indicate a large degree of chaoticity in the source at freeze-out, whereas for the midcentral class the source is less chaotic. The comparison between super proton synchroton (SPS) and Star results suggested a systematic dependence of the chaoticity on particle multiplicity. High statistics from Star have allowed a normalized three-pion correlator calculation.