Evidence for a long-range component in the pion emission source in Au+Au collisions at sNN=200GeV

Emission source functionsare extracted from correlation functions constructed from charged pionsproduced at midrapidity in Au+Au collisions at s(NN)=200 GeV. The source parameters extracted from these functions at low k(T) give first indications of a long tailfor the pionemission source. The source extension cannot be explained solely by simple kinematic considerations. The possible role of a halo of secondary pionsfrom resonance emissions is explored.