Abstract The magnetic polarisability is a fundamental property of hadrons, which provides insight into their structure in the low-energy regime. The pion magnetic polarisability is calculated using lattice QCD in the presence of background magnetic fields. The results presented are facilitated by the introduction of a new magnetic-field dependent quark-propagator eigenmode projector and the use of the background-field corrected clover fermion action. The magnetic polarisabilities are calculated in a relativistic formalism, and the excellent signal-to-noise property of pion correlation functions facilitates precise values.

中文翻译：

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使用背景场​​法的 Pion 磁极化率

摘要 磁极化率是强子的一个基本特性，它提供了对低能区结构的深入了解。在存在背景磁场的情况下，使用晶格 QCD 计算 pion 磁极化率。通过引入新的依赖磁场的夸克传播子本征模式投影仪和使用背景场​​校正的三叶草费米子作用，促进了所呈现的结果。磁极化率以相对论形式计算，pion 相关函数出色的信噪比特性有助于获得精确的值。