高能p-A碰撞的碰撞几何、能量损失和横能分布

On Collision Geometry, Energy Loss and Transverse Energy Distribution in High Energy p A Collisions

摘要: 采用一种仔细考虑了作用截面、表面弥散和形变效应的核碰撞几何，同时考虑到在每一次碰撞中领头质子损失能量，得到了高能ｐ－Ａｌ碰撞的横能分布，计算结果与２００ＧｅＶ／ｃｐ－Ａｌ、Ｃｕ及Ｕ碰撞的实验数据符合.In this paper, the nuclear collision geometry which was considered carefully in the interaction cross sections, surface effects and nuclear deformations is adopted. The energy loss of leading proton in each collision is considered. The transverse energy distributions in high energy p A collisions are obtained. The calculated results are in agreement with the experiment data of 200 GeV/ c p Al, Cu and U collisions.

Abstract: In this paper, the nuclear collision geometry which was considered carefully in the interaction cross sections, surface effects and nuclear deformations is adopted. The energy loss of leading proton in each collision is considered. The transverse energy distributions in high energy p A collisions are obtained. The calculated results are in agreement with the experiment data of 200 GeV/ c p Al, Cu and U collisions.