相对论重离子碰撞中$\bqD^0{\bar \bqD}^0$的压缩背靠背关联
Squeezed back-to-back correlation of $\bqD^0{\bar \bqD}^0$ in relativistic heavy-ion collisions
摘要：
利用热π介子气体自能计算的介质内质量修正和粘性流体动力学程序VISH2+1提供的源时空分布，研究了相对论重离子碰撞中$D^0\!{\bar D}^0$的压缩背靠背关联（BBC）.结果表明，在RHIC能区，$D^0\!{\bar D}^0$的BBC在外围Au+Au碰撞中是显著的.提出了一种在实验中检测BBC的可能方法。
英文摘要：
We investigate the squeezed back-to-back correlation (BBC) of $D^0\!{\bar D}^0$ in relativistic heavy-ion collisions, using the in-medium mass modification calculated with a self-energy in hot pion gas and the source space-time distributions provided by the viscous hydrodynamic code VISH2+1. It is found that the BBC of $D^0\!{\bar D}^0$ is significant in peripheral Au+Au collisions at the RHIC energy. A possible way to detect the BBC in experiment is presented.
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