LHCB Operations and Computing

LHCB 操作和计算

• 批准号: 1904160
• 负责人: Mike Williams
• 金额: $ 304.14万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1904160&HistoricalAwards=false
• 关键词: LHCB; Operations; Computing

The development of the Standard Model (SM) of particle physics is a major intellectual achievement. The validity of this model was further confirmed by the discovery of the Higgs boson at the Large Hadron Collider at CERN. However, the Standard Model leaves open many questions, including why matter dominates over anti-matter in the Universe (CP violation), the values of the masses of quarks and leptons, and the properties of dark matter, among others. Most explanations require new phenomena, which we call Beyond the Standard Model Physics (BSM), and which the LHCb experiment at CERN has been designed to explore. This award provides facility operations, maintenance, and computing support to enable the participation of U.S. scientists in the LHCb experiment at CERN. The LHC is the premier High Energy Physics particle accelerator in the world and is currently operating at the CERN laboratory near Geneva Switzerland, one of the foremost facilities for answering these BSM questions. The LHCb experiment is one of four large experiments at the LHC and is designed to study in detail the decays of hadrons containing b or c quarks. The goal is to identify the existence of new physics beyond the Standard Model by examining the properties of hadrons containing these quarks. The new physics, or new forces, can be manifest by particles, as yet to be discovered, whose presence would modify decay rates and CP violating asymmetries of hadrons containing the b and c quarks, allowing new phenomena to be observed indirectly. U.S. groups play a leading role in the physics analysis, hardware development, and computing of LHCb. This award will support the NSF-supported groups' share of common items necessary for the experiment, maintenance and operations support for U.S.-delivered components, co-location of an LHCb Tier-2 computing facility, and R&D to optimize the operation of the experiment. The broader impacts of this award cover many areas, from student research experiences for graduate and undergraduate students, to very active QuarkNet Centers and Masterclass programs for high school teachers and students. A steady stream of undergraduates has been working in the participating university laboratories, where graduate students also have direct engagement in both instrumentation development as well as data analysis. Undergraduate and graduate students will be direct participants in the fabrication, testing, and maintenance of detector components under U.S. responsibility. Early career and nontraditional researchers will be integral participants in this exciting program of research.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

粒子物理学标准模型（SM）的发展是主要的智力成就。通过发现Higgs玻色子在CERN的大型强子对撞机上发现了希格斯玻色子的有效性。但是，标准模型留下了许多问题，包括为什么物质在宇宙中占主导地位（CP违规），夸克和叶子质量的价值以及暗物质的特性等。大多数解释都需要新现象，我们将其称为标准模型物理（BSM），并且在CERN的LHCB实验旨在探索它。该奖项提供了设施运营，维护和计算支持，以使美国科学家参与CERN的LHCB实验。 LHC是世界上首要的高能物理粒子加速器，目前在瑞士日内瓦附近的CERN实验室运营，这是回答这些BSM问题的最重要设施之一。 LHCB实验是LHC上的四个大型实验之一，旨在详细研究包含B或C夸克的Hadron的衰变。目的是通过检查包含这些夸克的黑龙的特性来确定超出标准模型的新物理学的存在。新的物理或新力可以通过颗粒表现出来，尚待发现，其存在会改变衰减率和违反包含B和C夸克的Hadron的CP，从而可以间接观察到新现象。美国团体在LHCB的物理分析，硬件开发和计算中发挥了领导作用。该奖项将支持NSF支持的小组的实验所必需的共同项目，维护和操作支持美国销售的组件，LHCB Tier-2计算设施的共存以及研发，以优化实验的运作。该奖项的更广泛影响涵盖了许多领域，从研究生和本科生的学生研究经验到高中老师和学生的非常活跃的Quarknet中心和大师班计划。稳定的本科生一直在参与的大学实验室工作，研究生也直接参与仪器开发和数据分析。本科生和研究生将直接参与美国责任的制造，测试和维护探测器成分。早期的职业和非传统研究人员将成为这项令人兴奋的研究计划的组成部分。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的影响审查标准，被认为值得通过评估来获得支持。