利用相对论量子分子动力学模型RQMD,对RHIC能区s=200 AGeVAu+Au 中心碰撞进行了2π干涉学分析, 对HBT关联相干因子λ的行为进行了研究. 研究表明, 参数λ一般小于理想混沌源时的值, 这反映了源的部分相干特性外, 还与源的膨胀和持续冻结有关, 体现为λ参数对粒子的冻结时间较为敏感.
Using the dynamical transport model RQMD with a correlation after-burner, the behavior of two-pion HBT λ-parameter is studied in Au+Au central collisions at RHIC energy s=200 AGeV. The λ-parameter is found to be sensitive to the sequential freeze-out in heavy-ion collisions.
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