Beam Monitoring and High-Level Trigger Equipment for the Belle II Experiment

Belle II 实验的光束监测和高级触发设备

• 批准号: SAPEQ-2018-00005
• 负责人: Warburton, Andreas
• 金额: $ 5.46万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Research Tools and Instruments
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=668191
• 关键词: Beam; Monitoring; Level; Trigger; Equipment

The Belle II experiment will be located at the SuperKEKB e+e- collider at the KEK laboratory in***Tsukuba, Japan. It is the successor to the successful Belle and BaBar experiments, which were cited***for their contributions to the phenomenon of CP violation in the 2008 Nobel Prize in Physics. The***primary physics goal of Belle II is to search for evidence of new physics through a wide range of***measurements that are sensitive to the presence of heavy virtual particles, and that can be precisely***predicted in the Standard Model. These measurements could include CP violation and other***asymmetries, rare decays, or forbidden decays.******The mass reach of these measurements can exceed that of the direct searches by ATLAS and CMS. If***new physics is found at the LHC, Belle II can explore its nature by looking for a pattern of deviations***from the Standard Model in ways that are not feasible at a hadron collider. If new physics is not***discovered at the LHC, Belle II measurements will provide critical guidance towards beyond***the-standard-model theories by either discovering new phenomena and deviations from Standard***Model expectations, or by excluding hypothesized models of new physics. Belle II will also be sensitive***to the direct production of new light particles, including those predicted by dark sector models of dark***matter, or additional Higgs particles, particles that will be difficult to detect at the LHC. The experiment***will also continue the exploration of the weak force and CP violation, a program successfully followed***by BaBar and Belle.******The funds requested will enable the Canadian group to complete its responsibilities to construct permanent***hardware for fast real-time SuperKEKB-beam background monitoring. Four LYSO-crystal radiation monitors***will be mounted orthogonally to the collider plane in the electromagnetic calorimeter shielding, and***equipment will be provided for the installation of plastic scintillator detectors to be mounted outside the final***focussing-magnet cryostats. Funds are also requested for equipment to further complete a contribution to***the Belle II high-level trigger (HLT), which receives detector data in real time, rapidly analyses it, and***determines which e+e- collisions to store permanently offline. The background-radiation and HLT equipment***are necessitated by the phased commissioning of Belle II during 2018-19, requiring completion of***radiation-monitor coverage and increased trigger-processing capacity, respectively.******This research will further worldwide particle-physics knowledge of the fundamental constituents of***matter in our Universe. The Canadian designed and built hardware in this request will constitute a part***of the Belle II experiment and will provide unique training of highly qualified personnel, individuals with***enhanced capacity to contribute to future Canadian knowledge acquisition and economically beneficial***innovation in the private and public sectors.

Belle II实验将位于日本*** Tsukuba的Kek实验室的SuperkekB E+E-Collider。它是成功的Belle和Babar实验的继任者，这些实验是因为它们对2008年诺贝尔物理学奖中CP违规现象的贡献而被引用。 Belle II的基本物理目标是通过广泛的***测量值搜索新物理学的证据，这些测量值对沉重的虚拟颗粒的存在敏感，并且可以在标准模型中准确预测。这些测量可能包括违反CP和其他***不对称，稀有衰减或禁止衰减。******这些测量的质量范围可以超过Atlas和CMS的直接搜索。如果在LHC上找到了***新物理学，Belle II可以通过寻找与标准模型的偏差模式来探索其性质，以在强子对撞机上不可行的方式与标准模型进行探索。如果未在LHC发现新物理学***，Belle II测量结果将通过发现新现象和与标准***模型期望的偏差或排除假设的新物理学模型，从而为超越***的超越***提供指导。 Belle II还将对直接生产新的光颗粒（包括黑暗***物质的暗区模型或其他希格斯颗粒，在LHC上很难检测到的颗粒）的直接产生。实验***还将继续探索弱部队和CP违规行为，该计划成功地由Babar和Belle进行***。****** ********要求的资金将使加拿大集团能够完成其责任，以构建永久性***硬件，以实现快速实时的Superkekb-Beam Backgromcking。四个溶血结晶辐射监视器***将在电磁热量屏蔽中正交到对撞机平面，并将提供***设备，以安装将安装的塑料闪烁体检测器安装在最终的***焦点焦点 - 焦点 - 磁力磁铁低温器。还要求资金用于进一步完成对*** Belle II高级触发器（HLT）的贡献，该触发器（HLT）实时接收探测器数据，迅速进行分析，并且***确定了哪些E+E碰撞以永久离线存储。背景辐射设备***需要通过2018 - 19年期间的Belle II分阶段调试来实现***辐射监测器覆盖范围和提高触发处理能力。加拿大设计和建造的硬件在本要求中将构成Belle II实验的一部分，并将提供对高素质人员，具有***增强能力的个人的独特培训，可以为未来的加拿大知识获取做出贡献以及在私营和公共部门中经济有益的***创新。