论文标题
用大量光子进行精确物理学的QED：零模式和强子光谱的第一个结果
QED with massive photons for precision physics: zero modes and first result for the hadron spectrum
论文作者
论文摘要
通过晶格QCD计算低能量耐药观测值的当前精度不仅需要引入电磁校正，而且还需要控制QED lattice版本引入的所有潜在系统不确定性。在晶格QED中引入一个大量的光子作为红外调节器，提供了一个定义的理论，称为Qedm，可与数值评估相提并论[ARXIV：1507.08916]。通过外推去除光子质量。在此贡献中，我们仔细检查了QEDM的各个方面，例如零模式的存在和命运，并描述了有限和无限体积中光子质量校正的确定。我们证明了所需的外推通过在两个合奏上获得的数值数据很好地控制了，这两个合奏仅在体积上有所不同。
The current precision reached by lattice QCD calculations of low-energy hadronic observables, requires not only the introduction of electromagnetic corrections, but also control over all the potential systematic uncertainties introduced by the lattice version of QED. Introducing a massive photon as an infrared regulator in lattice QED, provides a well defined theory, dubbed QEDM, amenable to numerical evaluation [arXiv:1507.08916]. The photon mass is removed through extrapolation. In this contribution we scrutinise aspects of QEDM such as the presence and fate of the zero modes contributions and we describe the determination of the photon mass corrections in finite and infinite volume. We demonstrate that the required extrapolations are well controlled using numerical data obtained on two ensembles which only differ in volume.
