标题： I型$U(1)$宇宙弦碰撞中的非对易构型 显示英文标题

标题： Non Intercommuting Configurations in the Collisions of Type-I $U(1)$ Cosmic Strings

摘要： 研究表明，当相对角度和动能较小时，两种类型I的$U(1)$弦在碰撞时可以形成束缚态，而不是更常见的互换配置。发生这种情况的速度被估计为理论中耦合常数比值、交叉角度和初始动能的函数。 显示英文摘要

摘要： It is shown that for small relative angle and kinetic energy two type I $U(1)$ strings can form bound states upon collision instead of the more familiar intercommuting configuration. The velocity below which this may happen is estimated as function of the ratio of the coupling constants in the theory, crossing angle and initial kinetic energy.