Pion interferometry in Au+Au collisions at s_NN = 200 GeV
Abstract
We present a systematic analysis of two-pion interferometry in Au+Au collisions at sNN = 200 GeV using the STAR detector at RHIC. We extract the HBT radii and study their multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianess of the correlation function is studied. Estimates of the geometrical and dynamical structure of the freeze-out source are extracted by fits with blast wave parameterizations. The expansion of the source and its relation with the initial energy density distribution is studied.
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