Heavy quark phenomenology from Lattice QCD

描述称为夸克的基本粒子动力学的理论是量子色动力学（QCD）。对夸克的详细实验研究可能会揭示未知物理学的证据，最终可以解释构成“暗物质”的粒子。为了从LHC和世界各地其他加速器进行的实验中提取关于夸克的信息，需要高精度地求解QCD。解决QCD的另一个动机是预测夸克的新束缚态的性质，例如混合介子，其中胶子的动力学起着关键作用。解决QCD的一个关键方法是格点QCD。格点QCD是引入时空格点，并在大型超级计算机上用蒙特卡罗方法求解得到的方程。该项目将涉及使用重夸克计算LHCb和贝儿II等实验所需的一些弱矩阵元的格点QCD。学生将学习晶格QCD测量技术，包括代码开发，并在最先进的超级计算机上运行他们的代码，例如剑桥数据驱动发现服务。

The theory describing the dynamics of the fundamental particles called quarks is Quantum Chromodynamics (QCD). The detailed experimental study of quarks may reveal evidence for unknown physics, which ultimately could explain the particles making up "dark matter". To extract information about the quarks from the experiments, carried out at the LHC and other accelerators around the world, requires that QCD is solved with high precision. Another motivation for solving QCD is to predict the properties of novel bound states of quarks, such as hybrid mesons, where the dynamics of the gluons play a critical role. A key method to solve QCD is lattice QCD, where a space-time lattice is introduced and the resulting equations are solved on large supercomputers using Monte Carlo methods.The project will involve lattice QCD calculations, with heavy quarks, of some weak matrix elements required at experiments such as LHCb and Belle II. The student will learn lattice QCD measurement techniques, including code development, and run their codes on state of the art supercomputers, such as the Cambridge service for data driven discovery.