标题： 运动学屏蔽和史瓦西背景中的高能粒子碰撞 显示英文标题

标题： Kinematic censorship and high energy particle collisions in the Schwarzschild background

摘要： 我们考虑在史瓦西度规外部区域中自由运动的两个粒子之间的近视界碰撞。其中一个粒子来自一个白洞。我们仔细研究这种过程何时会导致碰撞点质心系中能量无限增长。我们还追踪碰撞的动力学如何根据动力学屏蔽原理来体现，根据该原理，任何碰撞事件中释放的能量不能是绝对无限的。根据这一原理，任何碰撞事件中释放的能量必须保持有限，尽管它可以被做得尽可能大。此外，我们发现接近奇点的粒子衰变会导致能量无限制释放，而与初始值无关。 显示英文摘要

摘要： We consider near-horizon collisions between two particles moving freely in the Schwarzschild metric in the region outside the horizon. One of them emerges from a white hole. We scrutiny when such a process can lead to the indefinitely large growth of the energy in the center of mass frame in the point of collision. We also trace how the kinematics of collision manifests itself in preserving the principle of kinematic censorship according to which the energy released in any event of collision cannot be literally infinite. According to this principle, the energy released in any event of collision, must remain finite although it can be made as large as one likes. Also, we find that particle decay near the singularity leads to unbounded release of energy independently of its initial value.