Hard Scattering Processes in QCD

QCD 中的硬散射过程

• 批准号: 0855501
• 负责人: Andreas Metz
• 金额: $ 23.12万
• 依托单位: Temple University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0855501&HistoricalAwards=false
• 关键词: Hard; Scattering; Processes; QCD

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The Jefferson Laboratory in Newport News (Virginia), the Relativistic Heavy Ion Collider in Brookhaven (New York), and other facilities throughout the world already (and plan to) explore a variety of high energy collisions involving strongly interacting particles (like the proton) in order to reveal their substructure in terms of quarks and gluons --- the elementary entities on which Quantum Chromodynamics (the fundamental and microscopic theory of the strong interaction) is build. While in the past only a 1-dimensional picture was possible, recent developments allow one to get a 3-dimensional view of the proton and of other strongly interacting particles. The major goal of the proposed project is to provide theoretical support for the ongoing experiments and to help sharpening the plans for future experimental activities. It is also expected to get new insights on how precisely Quantum Chromodynamics can describe a certain class of high energy collisions, namely those processes where polarization of just one particle is involved. It is notoriously challenging to find the proper framework for such processes, which currently are intensely studied both from the theoretical as well as the experimental side.The broader impact of this project, which is accompanied by a yearly lecture on theoretical particle and hadronic physics, is primarily in the training and education of graduate students. This project will also enable a greater overlap with the activities of the experimental hadron physics group at Temple University.

该奖项由 2009 年美国复苏和再投资法案（公法 111-5）资助。纽波特纽斯（弗吉尼亚州）的杰斐逊实验室、布鲁克海文（纽约）的相对论重离子对撞机以及世界各地的其他设施已经（并计划）探索各种涉及强相互作用粒子（如质子）的高能碰撞，以揭示其夸克和胶子的子结构 --- 量子色动力学（强相互作用的基本微观理论）所建立的基本实体。 虽然过去只能获得一维图像，但最近的发展使人们能够获得质子和其他强相互作用粒子的 3 维视图。该项目的主要目标是为正在进行的实验提供理论支持，并帮助完善未来实验活动的计划。预计还将获得有关量子色动力学如何精确描述某一类高能碰撞（即仅涉及一个粒子极化的过程）的新见解。众所周知，为此类过程找到合适的框架是一项艰巨的任务，目前从理论和实验方面都在深入研究这些过程。该项目的更广泛影响主要在于研究生的培训和教育，每年都会举办有关理论粒子和强子物理的讲座。该项目还将与坦普尔大学实验强子物理小组的活动有更大的重叠。