位-空间方法对晶格上介子g-2贡献的研究进展。

Proceedings of 37th International Symposium on Lattice Field Theory — PoS(LATTICE2019) Pub Date : 2019-11-13 DOI:10.22323/1.363.0195

Nils Asmussen, En-Hung Chao, A. G'erardin, J. Green, R. Hudspith, H. Meyer, A. Nyffeler

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引用次数: 10

摘要

对介子异常磁矩的测量及其预测使标准模型(SM)的高精度测试成为可能。在这篇论文中，我们介绍了正在进行的结合晶格QCD和连续QED的工作，以确定一个重要的SM对磁矩的贡献，强子光对光的贡献。我们在美因茨位置空间方法中计算了夸克连接的贡献，并通过计算$\pi^0$-极和带电介子环的贡献来研究我们数据的长距离部分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Developments in the position-space approach to the HLbL contribution to the muon $g-2$ on the lattice.

The measurement of the anomalous magnetic moment of the muon and its prediction allow for a high-precision test of the Standard Model (SM). In this proceedings article we present ongoing work combining lattice QCD and continuum QED in order to determine an important SM contribution to the magnetic moment, the hadronic light-by-light contribution. We compute the quark-connected contribution in the Mainz position-space approach and investigate the long-distance part of our data using calculations of the $\pi^0$-pole and charged pion loop contributions.

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Proceedings of 37th International Symposium on Lattice Field Theory — PoS(LATTICE2019)

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