Spectra and Decays of Bound Systems in Quantum Chromody- namics and Quantum Electrodynamics (Physics)

建议研究氢的辐射能级移动，束缚夸克-反夸克系统的光谱和衰变，以及对TOP衰变的辐射修正。主要的努力与氢的兰姆式转移有关。这项工作需要计算由三重库仑交换和单库仑交换产生的纯反冲修正。将开始使用狄拉克·库仑传播子计算两个回路辐射图。关于夸克束缚态的拟议工作将指向形成一种耦合通道混合方法，在该方法中虚态被相对论处理。对托普尼姆衰变的研究将涉及到虚拟希格斯贡献的分析。

It is proposed to study radiative level shifts in hydrogen, spectra and decays of bound quark-antiquark systems, and radiative corrections to toponium decay. The major effort concerns the lamb shift of hydrogen. The work entails calculation of pure recoil corrections resulting from triple Coulomb exchange, as well as single Coulomb exchange. A calculation of two loop radiative graphs, using Dirac Coulomb propagators, will be initiated. Proposed work on quarkonium bound states will be directed toward formulating a coupled channel mixing approach in which the virtual states are treated relativistically. Research on toponium decay will involve analysis of virtual Higgs contributions.