RUI: Participation in the Study of Singly and Doubly Strange Nuclear Systems (Physics)

寻找可能存在的H粒子，奇异度- 2重子，从而测试两步反应机理和特殊的双室低温靶。利用介子电荷交换反应在靶体液氢部分产生级联负粒子。级联负电荷会在靶体的液态氘部分被减慢和停止，形成一个级联负氘原子，通过中子发射衰变成H粒子。这个反应产生的中子将是单能的，它的能量将通过飞行时间技术来测量。H粒子的特征将是中子飞行时间谱中的一个峰。实验将在布鲁克海文AGS新建的高动量束流线中进行。该项目将允许瓦萨学院的斯特恩斯教授和瓦萨学院的物理专业学生合作进行这些实验。该项目将加强瓦萨大学的物理专业，特别是通过丰富高级实验课程和由首席研究员讲授的现代物理学课程。

To search for the possible existence of the H particle, a strangeness minus 2 dibaryon, and thus test the two step reaction mechanism and a special two compartment cryogenic target. The kaon charge exchange reaction will be used to produced cascade minus particles in the liquid hydrogen part of the target. The cascade minus will be slowed down and stopped in the liquid deuterium part of the target to form a cascade minus deuterium atom which can decay to the H particle by neutron emission. The neutron from this reaction will be monoenergetic and its energy will be measured by time of flight techniques. The signature for the H particle will be a peak in the neutron time of flight spectrum. The experiment will be performed in a new high momentum beam line to be built at the Brookhaven AGS. The project will permit the collaboration of Professor Stearns, of Vassar College and physics majors from Vassar in these experiments. This project should lead to the strengthening of the physics major at Vassar particularly through the enrichment of an advanced laboratory course and a course in Modern Physics taught by the principal investigator.