Canadian Participation in the Electron-Ion Collider

加拿大参与电子离子对撞机

• 批准号: SAPPJ-2021-00026
• 负责人: Deconinck, Wouter
• 金额: $ 4.23万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=743122
• 关键词: Canadian; Participation; Electron; Ion; Collider

The Electron-Ion Collider (EIC) is a major new collider facility to be built on Long Island, NY, by the US Department of Energy in this decade. At the EIC, polarized electrons will collide with polarized protons, polarized light ions, and heavy nuclei at intensities far beyond what is currently available. The facility will answer fundamental questions central to our understanding of atoms, and integral to the agenda of nuclear physics today. - How does the mass of the nucleon arise? - How does the spin of the nucleon arise? - What are the emergent properties of dense systems of gluons? - What is the composition of exotic hadrons? The EIC project achieved two milestones in 2019-2020, with the first critical decision (CD-0) establishing mission need, and with the site selection of Brookhaven National Lab. The project aims to complete the next three critical decisions by the end of 2023, and to start operations by 2030. The EIC Users Group is coordinating the international efforts to instrument the two collider interaction regions. Canadian subatomic physicists have participated intensively in the planning of this new facility and have chartered a multi-institutional EIC Canada Collaboration to coordinate participation. Members of the EIC Canada Collaboration are involved in the Steering Committee and in other working groups of the EIC Users Group. This proposal requests support for investigators and HQP in the EIC Canada Collaboration for a period of two years. Due the rapid pace at which the EIC project is ramping up, we are requesting support in two years increments so as to allow for frequent re-evaluation of the optimal level of support. In this two year project period we will support two M.Sc. students at the University of Regina, two M.Sc. students at the University of Manitoba, and four undergraduate research students at Mount Allison University. These students will: - determine whether measurements of the K+ form factor in electroproduction will be a feasible probe of emergent mass generation in hadrons, - revisit earlier studies of electroweak mixing angle measurements with updated performance parameters for the anticipated detectors, - develop a conceptual design for electron detection in Compton polarimetry, - build event generators to study photoproduction of XYZ states by examining channel sensitivity, - contribute to simulations and the conceptual development of calorimetry. The four M.Sc. and four undergraduate research students will not work in isolation; they will be in contact through regular virtual and in-person EIC Canada meetings. The students will be represented in the collaboration in a dedicated junior research committee established as part of our Code of Conduct. By engaging students in the activities of the EIC, we will prepare them for future careers inside and outside research. In particular, the M.Sc. students will be well prepared for Ph.D. positions on EIC, which are scheduled to ramp up in the next few years.

电子-离子对撞机（EIC）是美国能源部在这十年内在纽约长岛建造的一个主要的新对撞机设施。在EIC，极化电子将与极化质子，偏振光离子和重核碰撞，其强度远远超过目前可用的强度。该设施将回答对我们理解原子至关重要的基本问题，并成为当今核物理议程的组成部分。- 核子的质量是如何产生的？- 核子的自旋是如何产生的？- 稠密胶子系统的突现性质是什么？- 奇异强子的组成是什么？EIC项目在2019-2020年实现了两个里程碑，第一个关键决策（CD-0）确定了使命需求，并选择了布鲁克海文国家实验室。该项目的目标是在2023年底前完成接下来的三个关键决策，并在2030年前开始运营。EIC用户小组正在协调国际上为这两个对撞机相互作用区配备仪器的努力。加拿大亚原子物理学家积极参与了这一新设施的规划，并特许成立了一个多机构的EIC加拿大合作组织，以协调参与。EIC Canada协作的成员参与了指导委员会和EIC用户组的其他工作组。本提案要求为EIC Canada协作中的研究者和HQP提供为期两年的支持。由于EIC项目的快速发展，我们要求以两年为单位提供支持，以便经常重新评估最佳支持水平。在这个为期两年的项目期间，我们将支持两个硕士在里贾纳大学的学生，两个硕士在马尼托巴大学的学生，和四个本科研究生在艾利森山大学。这些学生将：- 确定电产生中K+形状因子的测量是否将是强子中涌现质量产生的可行探测器，-用预期探测器的更新的性能参数重新审视电弱混合角测量的早期研究，-开发用于康普顿偏振测量中的电子探测的概念设计，-构建事件发生器以通过检查通道灵敏度来研究XYZ状态的光产生，- 有助于模拟和量热法的概念发展。四名硕士和四名本科研究生将不会孤立地工作;他们将通过定期的虚拟和面对面的EIC加拿大会议进行联系。学生将代表在一个专门的初级研究委员会成立的合作作为我们的行为准则的一部分。通过让学生参与EIC的活动，我们将为他们未来的研究内外的职业生涯做好准备。特别是，硕士学生将为博士学位做好准备。在EIC的位置，这是计划在未来几年内坡道。