论文标题
在手性有效领域理论中，在杜特隆上捕获穆恩
Muon capture on the deuteron in chiral effective field theory
论文作者
论文摘要
我们考虑在杜特隆上捕获若子。对主要通道的不确定性分析对于对即将到来的实验数据进行仔细分析很重要。我们从相关的最终状态中相关的中子中子部分波通道中量化了手性有效场理论的理论不确定性。我们研究了使用不同拟合数据和策略校准相互作用的临界值的依赖性，以及电流的有效场理论扩展的截断。将这些方法的结合作为$γ^{1/2} _ {μd} = 399.1 \ pm 7.6 \ pm 4.4 $ s $^{ - 1} $从原子双打状态捕获，$γ^^{3/2} _ {3/2} _ {μd= 12.31 = $ pm PM}从四重奏状态捕获。
We consider the capture of a muon on a deuteron. An uncertainty analysis of the dominant channels is important for a careful analysis of forthcoming experimental data. We quantify the theoretical uncertainties of chiral effective-field-theory predictions of the muon-deuteron capture rate from the relevant neutron-neutron partial wave channels in the final state. We study the dependence on the cutoff used to regularize the interactions, low-energy constants calibrated using different fitting data and strategies, and truncation of the effective-field-theory expansion of the currents. Combining these approaches gives as an estimate of $Γ^{1/2}_{μd} = 399.1 \pm 7.6 \pm 4.4$ s$^{-1}$ for capture from the atomic doublet state, and $Γ^{3/2}_{μd} = 12.31 \pm 0.47 \pm 0.04$ s$^{-1}$ for capture from the quartet state.
