Radiation of Goldstone bosons from cosmic strings.
Radiation of Goldstone bosons from cosmic strings.
复制标题
宇宙弦中戈德斯通玻色子的辐射。
DOI：
10.1103/physrevd.35.1138
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
T. Vachaspati
中科院分区：
文献类型：
--
作者：
A. Vilenkin;T. Vachaspati
它表明，全球弦与戈德斯通玻色子的相互作用可以描述由一个模型的弦耦合到反对称张量场与一个特定的选择的耦合常数。应用该方法计算了一类闭环轨道的Goldstone玻色子辐射率。一个典型的循环的寿命被发现是非常短的，约20个振荡周期，在协议由戴维斯早先的估计。
It is shown that the interaction of global strings with Goldstone bosons can be described by a model of strings coupled to an antisymmetric tensor field with a particular choice of the coupling constant. This formalism is applied to calculate the rate of Goldstone-boson radiation from a class of closed-loop trajectories. The lifetime of a typical loop is found to be very short, about twenty oscillation periods, in agreement with an earlier estimate by Davis.