论文标题
重离子碰撞中的加热三角奇异点
Heating triangle singularities in heavy ion collisions
论文作者
论文摘要
我们预测，在重离子碰撞中，强体光谱的三角奇异性会受到强烈影响。为此，我们检查了对末端强子阶段有限温度的奇异性诱导三角形环的各种影响。看来，在中央重离子碰撞中看到的峰值比在两种情况下的撤销效果更可能是钢琴。首先，中间强子状态的飞行时间必须与平衡的火球的寿命相媲美（否则，反应主要发生在冻结后的真空中）。其次，三角环颗粒质量或宽度上的介质效应必须很大。当满足这些条件（易于检查）条件时，培养基迅速降低了奇异性：在t约150 meV时，即使是两个数量级，然后用作光谱滤波器。
We predict that triangle singularities of hadron spectroscopy can be strongly affected in heavy ion collisions. To do it we examine various effects on the singularity-inducing triangle loop of finite temperature in the terminal hadron phase. It appears that peaks seen in central heavy ion collisions are more likely to be hadrons than rescattering effects under two conditions. First, the flight-time of the intermediate hadron state must be comparable to the lifetime of the equilibrated fireball (else, the reaction mostly happens in vacuo after freeze out). Second, the medium effect over the triangle-loop particle mass or width must be sizeable. When these (easily checked) conditions are met, the medium quickly reduces the singularity: at T about 150 MeV, even by two orders of magnitude, acting then as a spectroscopic filter.
