Intermediate Energy Research

核子-核子碰撞中近阈值介子产生的研究将在IUCF冷却器环上进行。这些实验集中于利用极化质子束测量分析能力。这些数据将量化生产过程中的s波强度，从而允许理论家测试他们的重介子交换和/或核子-核子相互作用中的能量壳效应模型-这是当前重要的话题。该集团还将继续在CEBAF大接收光谱仪（CLAS）探测器的建设中发挥主导作用，并建设第一区漂移室。他们也是中国科学院核子共振项目物理学定义的领导者。在1997年CLAS探测器完成后，匹兹堡小组将作为发言人和合作者，成为生产和分析阶段的主要贡献者。它们计划进行168天的生产。* * *

9514566 Dytman Studies of near-threshold pion production in nucleon-nucleon collisions will be carried out at the IUCF cooler ring. These experiments concentrate on measurements of analyzing powers utilizing a polarized proton beam. The data will quantify the s- wave strength in the production process, thereby permitting theorists to test their models of heavy meson exchange and/or off- energy-shell effects in nucleon-nucleon interactions - a topic of significant current interest. The group will also continue to play a leading role in the construction of the CEBAF Large Acceptance Spectrometer (CLAS) detecter, with the construction of the Region I drift chambers. They are also leaders in defining the physics of the nucleon resonance program at CLAS. Upon completion of the CLAS detector in 1997, the Pittsburgh group will be major contributors to the production and analysis phase, both as spokesman and as collaborators. They are scheduled to run for 168 days of production. ***