Studies of Hadronic Structure of Matter

物质的强子结构研究

• 批准号: 8919110
• 负责人: Gerald Smith
• 金额: $ 138.63万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8919110&HistoricalAwards=false
• 关键词: Studies; Hadronic; Structure; Matter

This award will provide support to a group from the Pennsylvania State University to continue research in high energy physics. In experiment E760 at Fermilab, they will measure the properties of charmonium or charmed quark-charmed antiquark states. In experiment E706 at the Fermilab Tevatron, they will measure the production of direct photon emitted in high energy hadron-hadron collisions, thought to be due to quark-gluon or quark-antiquark interactions. These investigations are very important for shaping the theory of strong interactions (Quantum Chromodynamics). An experiment at DESY (Hamburg, Germany) utilizing electrons scattered off quarks in proton targets at the HERA collider will probe electron and quark substructures to distances of 10-18 cm, and search for families of excited leptons and quarks. The PSU group is participating in the contruction of the ZEUS detector which will be used in these experiments.

该奖项将支持宾夕法尼亚州立大学的一个小组继续研究高能物理。在费米实验室的E760实验中，他们将测量粲态或粲夸克-粲反夸克态的性质。在费米实验室Tevatron的E706实验中，他们将测量高能强子-强子碰撞产生的直接光子，这种碰撞被认为是由夸克-胶子或夸克-反夸克相互作用引起的。这些研究对于形成强相互作用理论（量子色动力学）是非常重要的。DESY（德国汉堡）的一项实验利用HERA对撞机质子靶中夸克散射的电子，探测距离为10-18厘米的电子和夸克子结构，并寻找激发轻子和夸克族。PSU小组正在参与将用于这些实验的ZEUS探测器的建造。