Threshold Behavior of Cross Sections in Fast Collisions (Physics)

快速碰撞中横截面的阈值行为（物理）

• 批准号: 8713895
• 负责人: Marianne Breinig
• 金额: $ 26.95万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1990-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8713895&HistoricalAwards=false
• 关键词: Threshold; Behavior; Cross; Sections; Fast

Two sets of experiments in atomic physics will be carried out, both involving the collisions of fast atoms and simple molecules. The products will often be formed in excited states, so a complete determination of these products will yield important information about the collision process. A novel feature of this work will be to study the breakup of the product particles as the energy is increased above the threshold for this excitation. When the final products are thus three (or more) particles, the results of these experiments will help decide between conflicting theoretical descriptions.

将进行两组原子物理实验 这两个过程都涉及到快速原子和简单原子的碰撞。 分子。 产物通常以激发态形成， 因此，对这些产品的完整测定将产生 关于碰撞过程的重要信息。 一种新型 这项工作的特点将是研究产品的分解 当能量增加到阈值以上时， 激发 当最终产品是三个（或更多） 粒子，这些实验的结果将有助于决定 相互矛盾的理论描述