论文标题
标准模型物理学的重力波背景：完整的领先顺序
Gravitational wave background from Standard Model physics: Complete leading order
论文作者
论文摘要
我们计算由热平衡中标准模型等离子体发出的引力波携带的能量密度的生产速率，始终是耦合常数的领先顺序。总结宇宙的完整历史记录的贡献，可以通过所谓的$ n _ {\ rm eff} $参数来限制辐射时期的最高温度。当前的理论不确定性$Δn_ {\ rm eff} \ le 10^{ - 3} $对应于$ t _ {\ rm max} \ le 2 \ le 2 \ times 10^{17} $ gev。在计算过程中，我们展示了如何在标准软件包的帮助下确定生产率的一个子部分，即使随后需要实施IR减法和热量重新召集。
We compute the production rate of the energy density carried by gravitational waves emitted by a Standard Model plasma in thermal equilibrium, consistently to leading order in coupling constants for momenta $k\sim πT$. Summing up the contributions from the full history of the universe, the highest temperature of the radiation epoch can be constrained by the so-called $N_{\rm eff}$ parameter. The current theoretical uncertainty $ΔN_{\rm eff} \le 10^{-3}$ corresponds to $T_{\rm max} \le 2\times 10^{17}$ GeV. In the course of the computation, we show how a subpart of the production rate can be determined with the help of standard packages, even if subsequently an IR subtraction and thermal resummation need to be implemented.
