Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-10-28
Phys.Rev.C56:610-613,1997
Physics
Nuclear Physics
Nuclear Theory
4 pages Revtex, 2 postscript figures
Scientific paper
10.1103/PhysRevC.56.610
In heavy ion collisions resonances can create strong non-Gaussian effects in the 2-pion correlation data. Hence, the commonly used Gaussian fit parameters do not fully characterize these correlators. We suggest a different set of HBT parameters which does not presuppose a particular shape of the correlator and allows to extract additional (non-Gaussian) information. Within a simple model for an expanding source including resonance decays it is shown that this additional information provides a clean distinction between scenarios with and without transverse flow.
Heinz Ulrich
Wiedemann Urs Achim
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