Intermediate Energy Research

9514566戴特曼研究核子-核子碰撞中的近阈值π介子的产生将在IUCF冷却环上进行。这些实验集中在利用极化质子束分析功率的测量上。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核子-核子相互作用中的重介子交换和/或离能壳层效应的模型-这是当前非常感兴趣的一个话题。该小组还将继续在建造CEBAF大接受光谱仪(CLAS)探测器以及建造I区漂移室方面发挥领导作用。他们也是定义CLAS核子共振计划的物理学的领导者。在1997年完成Clas探测器后，匹兹堡小组将作为发言人和合作者对生产和分析阶段做出主要贡献。他们计划运行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. ***