Experimental Particle Physics

下一个四年的时间表特别令人兴奋，因为大型强子对撞机的开发和升级发展正处于关键阶段。我们将把我们的努力集中在ATLAS的希格斯和顶级部分，NA62的Kaon部分，LHCb的魅力和美容部分，以及T2K和Hyper-K的中微子部分，包括在每个情况下搜索BSM过程。我们正在同时进入一个重要的建设阶段，这将需要大量的努力，建立在我们的ATLAS、LHCb和线性对撞机探测器开发之间建立的协同效应基础上。我们在中微子领域经历了重大转变，加入了T2K合作，通过WAGASCI/BabyMIND探测器为其近探测器升级做出了贡献，作为迈向未来中微子发展的重要一步。与国际社会一道，我们将为建立未来直线对撞机所需的领导力做出贡献，作为2020年欧洲战略的一部分。我们发展了探测器的开发和建造能力，以促进我们的计划，并以精心规划的方法培养了我们的技术人员和工程工作。改进的分析技术、校准良好的探测器、增加的计算能力和理论投入将是必不可少的，我们正处于这些领域所需发展的前沿。大多数学者都深度参与了CERN计划，我们的策略是根据ATLAS、LHCb和NA62实验中发展的专业知识，产生尖端的物理结果。在第二轮获得高质量的完成并在希格斯H-&>BB模式和ATLAS的顶级制作中取得显著成果后，我们将利用这一经验来领导未来的ATLAS出版物。利用我们在助推拓扑方面的工作和利用更大的Run 3数据集，我们将探索相空间的更极端区域，并使用理论输入来指导我们的结果的解释。对于LHCb，我们将测量环状和树状B衰变的CKM角伽马，寻找CP破坏，并测量Charm衰变中的混合参数。我们将探索双重魅力重子的光谱，并测量所发现的态的性质。对于NA62，我们将保持英国的计算专业知识，并将为K&GT；pi nu nu通道的分析做出贡献。我们将继续投资并促进世界级探测器开发活动，以实现更长期的倡议，我们的网格优势旨在最大化我们在大型强子对撞机物理领域的影响，并促进新的领域，如线性对撞机。此外，我们还通过大学在这些领域提供了重要的支持。我们已经使用网格为每个实验建立了物理分析流，并将继续充分利用LHC Run 3数据。我们还将利用我们的领导作用，发展我们对长期计划的参与。我们目前在ATLAS和LHCb升级、线性对撞机和未来的中微子计划(如T2K升级和Hyper-K)方面处于领先地位。在接下来的四年里，我们将开发这些领域，并在早期投资将变得最有成效的领域取得进展，这与我们开发大型强子对撞机和中微子物理的最优先事项一致。为了加强优先方案，我们投资开发了通用探测器，从而对传感器技术产生了重大影响。我们在倒装芯片焊接和芯片设计方面开发了新的能力，补充了我们成熟的核心专业知识。这确保了我们能够保留专业知识，以便通过支持大型强子对撞机升级和其他计划来实现我们在硅探测器开发方面的优先事项。我们期待与IGR和JWNC小组合作，在那里我们从联合设施中获益。这一战略非常适合我们核心团队的技能和能力。在英国粒子物理学发展的关键时刻，相关的响应努力将是至关重要的。

The next four-year timescale is particularly exciting with the exploitation of the LHC and upgrade developments at a critical stage. We will focus our efforts in the Higgs and top sectors for ATLAS, in the kaon sector for NA62, and in the charm and beauty sector for LHCb and in the neutrino sector at T2K and Hyper-K, including searches for BSM processes in each case. We are simultaneously entering a major construction phase which will require significant effort, building upon the synergies established between our ATLAS, LHCb and Linear Collider detector developments. We have undergone a significant transition in the neutrino sector where we have joined the T2K collaboration, contributing to its near detector upgrade through the WAGASCI/BabyMIND detectors, as a major step towards future neutrino developments. With the international community, we will contribute to the leadership needed to establish a future Linear Collider as part of the 2020 European strategy. We have developed detector development and construction capacity to contribute to our programme and have built up our technician and engineering effort in a carefully planned approach. Improved analysis techniques, well-calibrated detectors, increased computing power and theoretical input will be essential and we are at the forefront of the required developments in these areas.Most academics are heavily involved in the CERN programme and our strategy is to generate leading-edge physics results from ATLAS, LHCb and NA62 based upon expertise developed in those experiments. Having secured high-quality completion in Run 2 with significant results in Higgs H->bb modes and top production for ATLAS, we will exploit this experience to lead future ATLAS publications. Taking advantage of our work on boosted topologies and exploiting the larger Run 3 dataset, we will explore more extreme regions of phase space and use theoretical input to guide the interpretation of our results. For LHCb, we will measure the CKM angle gamma from loop and tree dominated B decays, search for CP violation and measure mixing parameters in charm decays. We will explore the spectrum of doubly-charmed baryons and measure the properties of the discovered states. For NA62 we will maintain UK computing expertise and will contribute to the analysis of the K->pi nu nu channel.We continue to invest in and promote a world-class Detector Development activity to enable longer-term initiatives and our Grid strength is aimed at maximising our impact in LHC physics as well as promoting new areas such as the linear collider. We additionally lever significant support through the University in these areas. We have set up physics analysis streams for each experiment, using the Grid, and will continue to fully exploit the LHC Run 3 data. We will also develop our involvement in longer-term initiatives exploiting our leadership roles. We presently have leading roles in the ATLAS and LHCb upgrades, the linear collider and future neutrino initiatives, such as T2K upgrades and Hyper-K. Over the next four years we will develop these areas and progress those where early investment will become most productive, consistent with our highest priority of LHC and neutrino physics exploitation. To enhance the priority programme, we have invested in generic detector developments leading to significant impact in sensors technologies. We have developed new capabilities in flip-chip bonding and chip design, complemented our well established core expertise. This has ensured that we can retain expertise in order to meet our priorities in silicon detector development via support of the LHC upgrade and other programmes. We anticipate working with the IGR and JWNC groups where we gain from joint facilities. This strategy is well suited to the skills and capacity of our core group. The associated responsive effort will be essential at a critical point in the evolution of UK particle physics.