Precision Phenomenology of Elementary Particles at Colliders

欧洲核子研究中心的大型强子对撞机（LHC）探索控制基本粒子之间相互作用的基本定律，并为探索前所未有的能量机制提供了最广泛的物理机会。2012年发现的一种类似希格斯玻色子的粒子标志着长达数十年的寻找的结束，并巩固了粒子物理学的标准模型（SM）作为在基本层面上对自然的最佳描述。同时，已知SM在理论上是不完整的，因此只能在有限的能量范围内被认为是有效的。然而，迄今为止，超越SM的惊人物理信号仍然没有出现。因此，难以捉摸的新物理现象很可能隐藏在微小而微妙的影响中，需要通过将实验数据与理论预测相比较的详细研究来确定这些影响。因此，对所谓的“标准烛光过程”的精确测量以及对希格斯玻色子性质的确定是大型强子对撞机项目和未来可能的对撞机的重中之重。然而，这些研究严重依赖于我们以高精度预测信号和背景过程的能力。可能的博士项目将侧重于SM内的精确计算及其现象学应用，并将与大型强子对撞机和可能的未来对撞机的物理计划密切相关。这些项目要求应用和发展分析和数值技术，以及使用高性能计算资源。位于达勒姆的粒子物理现象学研究所（IPPP）在标准模型之外的物理学理论方面及其现象学特征方面拥有出色的专业知识，是这个雄心勃勃的项目的理想场所

The Large Hadron Collider (LHC) at CERN probes the basic laws governing the interactions among elementary particles and offers the widest range of physics opportunities in the exploration of unprecedented energy regimes. The discovery of a Higgs boson-like particle in 2012 marks the end of a decades-long search and has fortified the Standard Model (SM) of particle physics as the best description of nature at the fundamental level. At the same time, the SM is known to be theoretically incomplete and can therefore be considered valid only in a limited range of energies. However, striking signals of physics beyond the SM still remain absent to date. Elusive new-physics phenomena are therefore likely hiding in small and subtle effects, which need to be pinned down through detailed studies that confront the experimental data with theoretical predictions. Precision measurements of so-called "standard-candle processes" as well as the determination of the properties of the Higgs boson are therefore among the highest priorities of the LHC programme and possible future colliders. Such studies, however, critically rely on our ability to predict both signal and background processes with high precision. Possible PhD projects will focus on precision calculations within the SM and their phenomenological applications and will be closely aligned with the physics programme of the LHC and possible future colliders. Those projects requite the application and development of analytical and numerical techniques, as well as the use of high-performance computing resources. The Institute for Particle Physics Phenomenology (IPPP) in Durham, has an outstanding expertise in the theoretical aspects of physics beyond the Standard Model and on its phenomenological signatures and it is an ideal place for this ambitious project