Two-pion interferometry for a partially coherent evolution source |
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Authors: | LI Jian-Wei YU Li-Li ZHANG Wei-Ning |
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Affiliation: | LI Jian-Wei~1 YU Li-Li ZHANG Wei-Ning 1 |
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Abstract: | We give the formulas of two-pion Hanbury-Brown-Twiss (HBT) correlation function for a partially coherent evolution pion-emitting source,using quantum probability amplitudes in a path-integral formalism. The multiple scattering of the particles in the source is taken into consideration based on Glauber scattering theory.Two-pion interferometry with effects of the multiple scattering and source collective expansion is exam- ined for a partially coherent source of hadronic gas with a finite baryon density and evolving hydrodynamically. We do not find observable effect of either the multiple scattering or the source collective expansion on HBT chaotic parameter. |
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Keywords: | HBT correlation function partially coherent evolution source multiple scattering source collective expansion |
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