Abstract
We present a systematic analysis of two-pion interferometry in collisions at using the STAR detector at Relativistic Heavy Ion Collider. We extract the Hanbury-Brown and Twiss radii and study their multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianness 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 parametrizations. The expansion of the source and its relation with the initial energy density distribution is studied.
23 More- Received 18 November 2004
DOI:https://doi.org/10.1103/PhysRevC.71.044906
©2005 American Physical Society