Investigations in Elementary Particle Physics

9322114邓肯将在量子场论和量子色动力学的具体方面以及电弱物理的标准模型方面进行一些理论研究。所采用的方法大多是非微扰的，包括格子QCD中的蒙特卡罗模拟、微扰理论的解析改进和1/N展开。晶格计算将导致对B介子系统中衰变常数和质量分裂的高精度第一性原理评估，这对即将在B工厂中进行的B介子唯象研究具有重要意义。非微扰技术对于解决QCD等强耦合场论中的问题是必不可少的。被攻击的问题代表了量子场论中最受关注的基本问题，以及与当前和未来几代粒子加速器直接相关的现象学问题。***

9322114 Duncan A number of theoretical investigations in Quantum Field Theory and specific aspects of Quantum Chromodynamics (QCD) and the Standard Model of Electroweak physics will be carried out. The methods employed will mostly be nonperturbative, including Monte Carlo simulations in lattice QCD, analytic improvement of perturbation theory, and 1/N expansions. The lattice calculations will lead to high-precision first-principle evaluations of decay constants and mass splittings in the B-meson system, of central importance for upcoming studies of B-meson phenomenology in B-factories. Nonperturbative techniques are essential for attacking problems in strongly-coupled field- theories such as QCD. The problems attacked represent fundamental issues of topical interest in Quantum Field Theory and matters of direct phenomenological relevance to current and future generations of particle accelerators. ***