LHCb Upgrade II: Maximising HL-LHC Discovery Potential

LHCb升级II提案解决了欧洲粒子物理战略中设定的目标，即充分利用高亮度LHC的物理潜力。该实验旨在利用大型强子对撞机中重味（美丽和迷人）粒子的高生产率，从而通过循环过程精确搜索标准模型之外的物理。LHCb升级II建立在LHCb实验现有基础设施的基础上，升级了所有的子探测器系统和新的元素，通过使用精确的定时信息，将提供在同一束交叉的不同碰撞中分辨粒子的能力。数据记录的速度将比目前可能的要快得多，这将导致一个广泛而令人兴奋的物理项目，这是任何其他实验都无法比拟的。该提案是英国一个为期3年的研发项目，旨在开发具体的战略技术，使LHCb升级II的物理目标得以实现。这将使我们能够发展与英国工业界的联系，并通过编写LHCb升级II框架TDR以及子探测器特定TDR继续领导国际合作。英国各小组对通过开发战略技术解决顶点化和跟踪、带电强子识别和数据处理方面的挑战特别感兴趣，该项目被相应地组织成工作包。我们计划在这个初始项目之后进行进一步的原型设计和构建子探测器，并最终进行实验操作和数据分析。当然，这些后期阶段的资金要求将另行提出。

The LHCb Upgrade II proposal addresses the goal set out in the European Strategy for Particle Physics of exploiting fully the physics potential of the High Luminosity LHC.The experiment is designed to exploit the high production rate of heavy flavoured (beauty and charm) particles in LHC collisions, enabling precision searches for physics beyond the Standard Model through loop processes.LHCb Upgrade II builds on the existing infrastructure of the LHCb experiment, with upgrades to all subdetector systems and new elements that will provide capability to resolve particles from different collisions in the same bunch crossing through the use of precision timing information.Data will be recorded at much higher rates than currently possible, leading to a broad and exciting physics programme, unmatched by any other experiment.This proposal is for a 3 year R&D project within the UK to develop specific, strategic technologies that will enable the physics goals of LHCb Upgrade II to be achieved. This will allow us to develop links with UK industry and continue to lead the international collaboration through preparation of the LHCb Upgrade II framework TDR as well as subdetector-specific TDRs.The UK groups have particular interests in addressing challenges in vertexing and tracking, charged hadron identification and data processing by developing strategic technologies, and the project is structured into workpackages accordingly.We plan that this initial project be followed by further stages for prototyping and construction of the subdetectors, and eventually to operation of the experiment and analysis of the data.Requests for funding of these later stages will of course be made separately.