Particle emission and gravitational radiation from cosmic strings: Observational constraints
Particle emission and gravitational radiation from cosmic strings: Observational constraints
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宇宙弦的粒子发射和引力辐射：观测限制
DOI：
10.1103/physrevd.101.083511
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发表时间：
2019
影响因子：
5
通讯作者：
T. Vachaspati
中科院分区：
文献类型：
--
作者：
P. Auclair;D. Steer;T. Vachaspati
我们考虑粒子发射和引力辐射从宇宙弦环，以确定其对环的分布和观测签名的字符串。粒子发射的影响是循环的数量密度不再缩放。这导致随机引力波背景的高频截止，但我们表明，预期的截止是在当前和计划的探测器的范围之外。弦环的粒子发射也会产生一个弥散的伽马射线背景，它对环上的扭结和尖点的存在很敏感。然而，无论是扭结和尖点，并与粒子物理相互作用的温和假设，目前的漫射伽马射线背景观测不约束$G\mu$。
We account for particle emission and gravitational radiation from cosmic string loops to determine their effect on the loop distribution and observational signatures of strings. The effect of particle emission is that the number density of loops no longer scales. This results in a high frequency cutoff on the stochastic gravitational wave background, but we show that the expected cutoff is outside the range of current and planned detectors. Particle emission from string loops also produces a diffuse gamma ray background that is sensitive to the presence of kinks and cusps on the loops. However, both for kinks and cusps, and with mild assumptions about particle physics interactions, current diffuse gamma-ray background observations do not constrain $G\mu$.
勘误表：高级 LIGO 首次观测运行中随机引力波背景的上限 [Phys。
影响因子：
8.6
作者：
Abbott BP
通讯作者：
Abbott BP