Jet Physics at the LHC in and Beyond the Standard Model

喷流是高能强子的高度准直束，在LHC的精确分析和新物理研究中无处不在。射流的主要特征（质量、宽度等）可以用量子色动学（QCD）中胶子辐射的基本性质来理解。最近，我和合作者设计了一种新的方法--战神方法（ARES），用于研究两个能量尺度分离的过程，本项目的目标是利用战神方法研究强子碰撞中有趣的可观测量，以进行精确研究和新物理的探索。将战神扩展到具有三个辐射腿的喷流观测，包括矢量或希格斯玻色子产生加上一个额外的喷流2。以NNNLL精度生产彩色单件。3.顶级对生产与否决权的额外喷气机。将战神扩展到其他对LHC现象学有重要意义的喷流观测量。所有过程都可以在标准模型内进行研究，或者根据有趣的新物理场景，包括标准模型之外的影响，例如复合希格斯模型或超对称性。拟议的方案具有很大的现象学意义。它的结果将是非常有用的标准模型的参数的精确测量，以及在大型强子对撞机的新的物理研究。

Jets, highly collimated bunches of energetic hadrons, are ubiquitous both in precision analyses and new physics searches at the LHC. The main features of jets (their mass, width, etc.) can be understood in terms of the basic properties of gluon radiation in Quantum Chromo-Dynamics (QCD). Recently, a new method, called ARES, has been devised by myself and collaborators to study processes characterised by the presence of two widely separated energy scales.The proposed project aims at using the ARES method to study interesting observables in hadron collisions both for precision studies and new physics searches.The project implies the following steps:1. Extension of ARES to jet observables with three radiating legs, including vector or Higgsboson production plus one additional jet2. Production of a colour singlet with a jet-veto at NNNLL accuracy.3. Top-pair production with a veto on additional jets.4. Extension of ARES to other jet observables of importance for LHC phenomenology.All processes could be studied either within the Standard Model, or including effects beyond the Standard Model according to interesting new physics scenarios, e.g. composite Higgs models or Supersymmetry. The proposed programme has a great phenomenological relevance. Its results will be very useful for precision measurements of the parameter of the Standard Model, as well as for new physics searches at the LHC.