Pion Interferometry for Hydrodynamical Expanding Source with a Finite Baryon Density

Details Pion Interferometry for Hydrodynamical Expanding Source with a Finite Baryon Density Pion Interferometry for Hydrodynamical Expanding Source with a Finite Baryon Density

2004-04-18

arxiv.org/abs/nucl-th/0404047v3

Chin. Phys. Lett. 21 (2004) 1918-1921

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figures

Scientific paper

10.1088/0256-307X/21/10/015

We calculate the two-pion correlation function for an expanding hadron source with a finite baryon density. The space-time evolution of the source is described by relativistic hydrodynamics and the Hanbury-Brown-Twiss (HBT) radius is extracted after effects of collective expansion and multiple scattering on the HBT interferometry have been taken into account, using quantum probability amplitudes in a path-integral formalism. We find that this radius is substantially smaller than the HBT radius extracted from the freeze-out configuration.

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