The geometry of fireballs in relativistic heavy ion collisions is approximated by a static box, which is infinite in two directions while finite in the other direction. The critical temperature of deconfinement phase transition is calculated explicitly in the MIT bag model at vanishing baryon density. It is found that the critical temperature shifts to a value higher than that in an unconstrained space.

中文翻译：

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在重子密度消失时使用袋模型在受限空间中解约束的临界温度

相对论重离子碰撞中火球的几何形状近似为一个静态盒子，它在两个方向上是无限的，而在另一个方向上是有限的。去约束相变的临界温度在 MIT bag 模型中以消失的重子密度显式计算。发现临界温度移动到一个高于无约束空间的值。