中文摘要：

应用量子路径积分的方法，分析了高能重离子碰撞产生的高重子数密度粒子发射源的2K和2π干涉学（Hanbury-Brown-Twiss，HBT关联）。利用相对论流体动力学描述源的演化，采用的状态方程包含QGP到强子相的一级相变和对强子气体的体积修正。在2π关联的计算中考虑了激发态粒子衰变和多重散射效应，并将其HBT关联半径和寿命与传统热冻结模型的结果进行了对比。计算表明，早期化学冻结产生的K介子的HBT关联半径比2π关联的HBT关联半径小。激发态粒子的衰变使HBT关联半径和寿命增加，而多重散射对HBT关联的结果几乎没有影响。

英文摘要：

Using quantum path-integral formulae, we examined the two-kaon and two-pion Hanbury-Brown-Twiss （HBT） interferometry for the particle-emitting source with high baryon density. The evolution of the source is described by relativistic hydrodynamics. We use an equation of state of first-order transition from QGP to hadronic phase and consider a volume correction for the hadronic gas. The two-pion HBT results with effects of excited-particle decay and multiple scattering were investigated and compared with those for conventional thermal freeze-out （TFO） model. We found that the two-kaon HBT radius was smaller than those of the two-pion interferometry. The particle decay increases the HBT radius and lifetime, while the effect of multiple scattering on HBT results can be neglected.