有效场论中双核子相互作用的辐射修正和重正化群

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Few-Body Systems Pub Date : 2024-08-05 DOI:10.1007/s00601-024-01948-8

Thomas R. Richardson, Immo C. Reis

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引用次数: 0

摘要

我们结合有效场理论和重正化群来确定辐射修正对核子-核子势能和氘核结合能的影响。为此，我们从非相对论量子电动力学的早期研究中获得启发，提出了无先驱有效场理论的修正版。氘核结合能的重正化群改进导致了百分之几数量级的偏移，并且与实验值一致。这项工作是在有效场论框架内专门研究与标准模型精确检验相关的少子体系统辐射修正的起点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Radiative Corrections and the Renormalization Group for the Two-Nucleon Interaction in Effective Field Theory

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Radiative Corrections and the Renormalization Group for the Two-Nucleon Interaction in Effective Field Theory

We use a combination of effective field theory and the renormalization group to determine the impact of radiative corrections on the nucleon–nucleon potential and the binding energy of the deuteron. In order to do so, we present a modified version of pionless effective field theory inspired by earlier work in nonrelativistic quantum electrodynamics. The renormalization group improvement of the deuteron binding energy leads to a shift on the order of a few percent and is consistent with the experimental value. This work serves as a starting point for a dedicated study of radiative corrections in few-body systems relevant for precision tests of the Standard Model in an effective field theory framework.

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来源期刊

Few-Body Systems 物理-物理：综合

CiteScore

2.90

自引率

18.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Few-Body Systems presents original research work – experimental, theoretical and computational – investigating the behavior of any classical or quantum system consisting of a small number of well-defined constituent structures. The focus is on the research methods, properties, and results characteristic of few-body systems. Examples of few-body systems range from few-quark states, light nuclear and hadronic systems; few-electron atomic systems and small molecules; and specific systems in condensed matter and surface physics (such as quantum dots and highly correlated trapped systems), up to and including large-scale celestial structures. Systems for which an equivalent one-body description is available or can be designed, and large systems for which specific many-body methods are needed are outside the scope of the journal. The journal is devoted to the publication of all aspects of few-body systems research and applications. While concentrating on few-body systems well-suited to rigorous solutions, the journal also encourages interdisciplinary contributions that foster common approaches and insights, introduce and benchmark the use of novel tools (e.g. machine learning) and develop relevant applications (e.g. few-body aspects in quantum technologies).