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Jet Physics at the LHC in and Beyond the Standard Model

大型强子对撞机的射流物理学在标准模型中和之外

基本信息

批准号：
2208955
负责人：
金额：
--
依托单位：
University of Sussex
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2208955
关键词：
Jet Physics LHC Beyond Standard

项目摘要

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.

射流是一种高度准直的高能强子，在大型强子对撞机的精确分析和新物理研究中无处不在。喷流的主要特征（质量、宽度等）可以用量子色动力学（QCD）中胶子辐射的基本性质来理解。最近，我和我的合作者们发明了一种叫做ARES的新方法，用来研究以存在两个相隔很远的能量尺度为特征的过程。拟议的项目旨在利用ARES方法研究强子碰撞中有趣的观测结果，以进行精度研究和新的物理搜索。该项目包含以下步骤：1。将ARES扩展到具有三个辐射腿的射流观测，包括矢量或希格斯玻色子生产加上一个额外的射流2。以NNNLL的精度生产带有喷射否决的彩色单线。对额外的喷气式飞机拥有否决权。将ARES扩展到对大型强子对撞机现象学有重要意义的其他喷射观测。所有的过程都可以在标准模型中进行研究，或者根据有趣的新物理场景，例如复合希格斯模型或超对称，包括标准模型之外的效应。拟议的方案具有重大的现象学意义。它的结果将对标准模型参数的精确测量以及大型强子对撞机的新物理搜索非常有用。