Research in Particle Physics Phenomenology

粒子物理现象学研究

基本信息

批准号：
2114404
负责人：
金额：
--
依托单位：
Durham University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2114404
关键词：
Research Particle Physics Phenomenology

项目摘要

Understanding the physics at the smallest scale and high energy is one of the major present challenges in particle theory. If there are new forces beyond those of the Standard Model, there should be new particles and we should be able to create the new particles at the Large Hadron Collider. In many scenarios that have been proposed, the new particles are very difficult to find because the cross section for making them is small and the structure of new physics signal events looks rather similar to that of Standard Model events that have larger cross sections. Thus one needs to distinguish signal events corresponding to a new physics scenario that one is trying to find from similar Standard Model background events. To best do this, we need to use differences between signal and background in the detailed substructure of the events. For this purpose novel reconstruction techniques have been proposed. The aim of this project is to develop new jet substructure techniques to improve on search strategies for new resonances and to improve measurements of the resonance's properties. To test the success of the newly developed techniques, the project will entail the simulation of new physics scenarios using full event generators. Because of the timeliness of the project a strong interaction with experimental groups is envisioned. The Institute of Particle Physics Phenomenology (IPPP) in Durham has an outstanding expertise in the novel field of jet substructure and in developing search strategies for new physics resonances. Therefore, it is an ideal place for this timely project.

了解最小和高能量的物理学是粒子理论中的主要挑战之一。如果有超出标准模型的新力，则应该有新的粒子，我们应该能够在大型强子对撞机上创建新颗粒。在许多提出的情况下，很难找到新粒子，因为用于使它们的横截面很小，并且新物理信号事件的结构看起来与具有较大横截面的标准模型事件相似。因此，需要区分与一个新物理场景相对应的信号事件，该方案试图从类似的标准模型背景事件中找到。为了最好地做到这一点，我们需要在事件的详细子结构中使用信号和背景之间的差异。为此，已经提出了新颖的重建技术。该项目的目的是开发新的JET子结构技术，以改善新的共振搜索策略，并改善对共振属性的测量。为了测试新开发的技术的成功，该项目将需要使用完整的事件生成器来模拟新的物理方案。由于该项目的及时性，与实验组有很强的相互作用。达勒姆（Durham）的粒子物理现象学研究所（IPPP）在新型的JET子结构领域和开发新物理共振的搜索策略方面具有出色的专业知识。因此，这是这个及时项目的理想场所。