Current models of inter-nucleon interactions are built within the frame of Effective Field Theories (EFTs). Contrary to traditional nuclear potentials, EFT interactions require a renormalization of their parameters in order to derive meaningful estimations of the observables. In this paper, a renormalization procedure is designed in connection with many-body approximations applicable to large-\(\mathrm {A}\) systems and formulated within the frame of many-body perturbation theory. The procedure is shown to generate counterterms that are independent of the targeted \(\mathrm {A}\)-body sector. As an example, the procedure is applied to the random phase approximation. This work constitutes one step towards the design of a practical EFT for many-body systems.

中文翻译：

---

A体领域中无子有效场理论的重新归一化

当前的核子间相互作用模型建立在有效场论（EFT）的框架内。与传统的核潜能相反，EFT相互作用需要对其参数进行重新归一化，以便得出对可观测物的有意义的估计。在本文中，结合适用于大型\（\ mathrm {A} \）系统的多体逼近设计了一种重归一化程序，并在多体摄动理论的框架内制定了该规范化程序。该过程显示出生成独立于目标\（\ mathrm {A} \）- body区段的反条件。作为示例，该过程被应用于随机相位近似。这项工作构成了为多体系统设计实用EFT的第一步。