New Higgs Bosons in CMS

欧洲核子研究中心（CERN）的大型强子对撞机（LHC）即将开始第三次数据采集运行（run 3），这将使当前的数据集增加一倍。本项目旨在开展通用的CMS实验，该实验能够寻找新的基本粒子的证据。我们知道，目前描述基本粒子及其相互作用的模型（标准模型）是不完整的。许多描述超越标准模型的可能物理的理论模型都需要扩展希格斯扇区，其中包括比2012年在大型强子对撞机发现的希格斯玻色子更轻的希格斯玻色子。在这个项目中，学生将使用在Run 3中收集的数据进行分析，以寻找这些可能的新光希格斯玻色子的证据。此外，该学生将致力于CMS实验的未来升级，这将使其能够在高亮度LHC （HL-LHC）上运行，该实验将于2029年左右开始采集数据。学生将开发足够简单的算法，以快速确定特定交互是否具有潜在的趣味性，从而将其定向到磁盘上的永久存储。这样的存储设施是有限的，有效的决策有助于减少资源需求，从而降低大型数据存储系统的成本。该项目将由卢瑟福阿普尔顿实验室的实验粒子物理小组和南安普顿大学的高能物理小组合作进行。这建立在2004年开始的NExT研究所（https://www.next-institute.ac.uk）长期合作的基础上。

The Large Hadron Collider (LHC) at CERN is about to start it third data taking run (Run 3) which will double the current datasets. This project is to work on the general purpose CMS experiment, which is capable of searching for evidence of new fundamental particles. We know that the current model that describes fundamental particles and their interactions (the Standard Model) is incomplete.Many theoretical models that describe possible physics beyond the Standard Model require extended Higgs sectors that include Higgs bosons lighter than the Higgs boson discovered at the LHC in 2012. In this project, the student will use the data collected in Run 3 to perform analyses that will search for evidence of these possible new light Higgs bosons. In addition, the student will work on the future upgrade of the CMS experiment which will enable it to operate at the High Luminosity LHC (HL-LHC) that is due to start taking data in about 2029. The student will develop algorithms that are simple enough to quickly decide whether a particular interaction is potentially interesting and hence to direct it to permanent storage on disk. Such storage facilities are limited and efficient decisions help to reduce resource requirements and hence the cost of the large data storage systems.The project will be a collaboration between the experimental Particle Physics group at the Rutherford Appleton Laboratory and the high-energy physics group at the University of Southampton. This builds on a long-standing collaboration begun in 2004 in the context of the NExT Institute (https://www.next-institute.ac.uk).