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Pion Interferometry for Hydrodynamical Expanding Source with a Finite Baryon Density |
| ZHANG Wei-Ning1,2;EFAAF M. J1;WONG Cheuk-Yin2,3;KHALILIASR M1 |
| 1Department of Physics, Harbin Institute of Technology, Harbin 150006
2Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
3Department of Physics, University of Tennessee, Knoxville, TN 37996, USA |
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| Cite this article: |
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ZHANG Wei-Ning, EFAAF M. J, WONG Cheuk-Yin et al 2004 Chin. Phys. Lett. 21 1918-1921 |
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Abstract 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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25.75.-q
25.75.Gz
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Published: 01 October 2004
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| PACS: |
25.75.-q
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(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
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25.75.Gz
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(Particle correlations and fluctuations)
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