Two-pion interferometry for a partially coherent evolution source

LI Jian-Wei; YU Li-Li; ZHANG Wei-Ning

doi:10.1088/1674-1137/32/2/009

Chinese Physics C> 2008, Vol. 32> Issue(2) : 120-125 DOI: 10.1088/1674-1137/32/2/009

Two-pion interferometry for a partially coherent evolution source

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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 examined 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.

References

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LI Jian-Wei, YU Li-Li and ZHANG Wei-Ning. Two-pion interferometry for a partially coherent evolution source[J]. Chinese Physics C, 2008, 32(2): 120-125. doi: 10.1088/1674-1137/32/2/009

LI Jian-Wei, YU Li-Li and ZHANG Wei-Ning. Two-pion interferometry for a partially coherent evolution source[J]. Chinese Physics C, 2008, 32(2): 120-125. doi: 10.1088/1674-1137/32/2/009 shu

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Received: 2007-04-05
Revised: 2007-07-13

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