Two-pion interferometry for a partially coherent evolution source

Two-pion interferometry for a partially coherent evolution source
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用于部分相干演化源的二π介子干涉测量

DOI:
10.1088/1674-1137/32/2/009
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发表时间:
2008
期刊:
影响因子:
3.6
通讯作者:
Zhang Wei-Ning
Zhang Wei-Ning
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yu Li-Li;Li Jian-Wei;Zhang Wei-Ning

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利用量子几率幅,在路径积分形式下,给出了部分相干演化π介子发射源的两π介子Hanbury-Brown-Twiss(HBT)关联函数的计算公式.基于Glauber散射理论,考虑了源中粒子的多次散射。本文研究了具有有限重子密度和流体动力学演化的强子气体部分相干源的多重散射和源集体膨胀效应的双π干涉。我们没有发现多重散射或源的集体膨胀对HBT混沌参数的明显影响。
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.
DOI: 10.1088/0954-3899/22/1/015
发表时间: 1996
期刊: Journal of Physics G
影响因子: --
作者:
H. Stöcker
通讯作者: H. Stöcker
DOI: 10.1142/9789814277549
发表时间: 1994-09
期刊: --
影响因子: --
作者:
C. Wong
通讯作者: C. Wong