Measurement of Source Chaoticity for Particle Emission in Au+Au   Collisions at $\sqrt{s_{NN}}$ = 130 GeV using 3-Particle HBT Correlations
  Data from the first physics run at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory from the STAR experiment have been analyzed using three-pion correlations to study whether pions are emitted independently at freezeout. We have made a high-statistics measurement of the three-pion correlation function and calculated the normalized three-particle correlator to obtain a quantitative measurement of the degree of chaoticity in the freeze-out environment. 
R. Willson (for the STAR Collaboration)