High-level trigger computing equipment for the Belle II experiment
Belle II实验高级触发计算设备
基本信息
- 批准号:SAPEQ-2017-00004
- 负责人:
- 金额:$ 5.57万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Subatomic Physics Envelope - Research Tools and Instruments
- 财政年份:2016
- 资助国家:加拿大
- 起止时间:2016-01-01 至 2017-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The Belle II experiment will address fundamental questions about the nature of matter: What happened after the Big Bang to rid the universe of anti-matter? What particle or particles make up the Dark Matter that pervades the universe, and how do they interact with normal matter? This experiment is a successor to the Belle and BaBar experiments, whose studies of e+e- collisions in this same energy region was mentioned in the official citation for the 2008 Nobel Prize in Physics. Belle II will be located at the SuperKEKB e+e- collider at the KEK laboratory in Tsukuba, Japan, and is designed to increase the existing world data sample in this energy region by a factor of 30 or more. The discovery potential of Belle II is complementary to that of the experiments at the Large Hadron Collider at CERN. The experimental environment at Belle II is much cleaner, allowing studies of rare processes that would be swamped by background at the LHC, and providing sensitivity to new physical interactions and particles, at mass scales that can exceed the reach of the LHC, through their presence in quantum loops.
The requested funds are for equipment to be used as part of the high-level trigger (HLT) for Belle II. The HLT receives data in real time from the Belle II detector, analyzes it rapidly, and determines which e+e- collisions to save to permanent offline storage. This infrastructure is needed to process the first e+e- collisions from SuperKEKB, which will begin in 2017. The data rate is expected to continue to rise sharply through 2018, which will require additional processing capacity at the HLT. This represents a significant Canadian contribution to Belle II. Canadian researchers will benefit from access to the full Belle II data set, and will be involved in the design and implementation of the HLT itself.
This research will further the worldwide knowledge of the fundamental constituents of matter and of how the present-day universe came to be. The Canadian researchers and students who work on the HLT system will acquire expertise in data acquisition and real-time computing systems, high-bandwidth data filtering, robust algorithm development, data quality monitoring and high-throughput computing, skills that are in demand in the burgeoning “Big Data” industry. The associated knowledge transfer will bring economic benefits to the private and public sector.
贝儿二号实验将解决有关物质本质的基本问题:大爆炸后发生了什么来消除宇宙中的反物质?什么粒子或粒子组成了弥漫在宇宙中的暗物质,它们如何与正常物质相互作用?这个实验是贝儿和巴巴尔实验的继承者,他们在同一能量区域的e+e-碰撞的研究在2008年诺贝尔物理学奖的官方引文中被提及。贝儿二号将位于日本筑波KEK实验室的SuperKEKB e+电子对撞机上,旨在将该能量区域现有的世界数据样本增加30倍或更多。贝儿二号的发现潜力与欧洲核子研究中心大型强子对撞机的实验是互补的。贝儿II的实验环境要干净得多,可以研究LHC背景中淹没的罕见过程,并提供对新物理相互作用和粒子的灵敏度,其质量尺度可以超过LHC的范围,通过它们在量子回路中的存在。
所要求的资金用于购买设备,这些设备将作为贝儿II号高级别触发器的一部分。HLT接收来自贝儿II探测器的真实的数据,快速分析,并确定将哪些e+e碰撞保存到永久脱机存储器。需要这种基础设施来处理来自超级KEKB的第一批e+e碰撞,这将于2017年开始。预计到2018年,数据速率将继续大幅上升,这将需要HLT的额外处理能力。这是加拿大对贝儿II的重大贡献。加拿大研究人员将受益于获得完整的贝儿II数据集,并将参与HLT本身的设计和实施。
这项研究将进一步增进全世界对物质的基本组成和当今宇宙如何形成的认识。在HLT系统上工作的加拿大研究人员和学生将获得数据采集和实时计算系统、高带宽数据过滤、强大的算法开发、数据质量监控和高吞吐量计算方面的专业知识,这些技能都是新兴的“大数据”行业所需要的。相关的知识转让将为私营和公共部门带来经济利益。
项目成果
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