60A GeV氧原子核在核乳胶中四分裂事例的遍举测量

EXCLUSIVE MEASUREMENT OF A QUARTERNARY FRAGMENTATION EVENT OF A 60 A GeV OXYGEN NUCLEUS IN NUCLEAR EMULSION

摘要: <正> 一、引言裂变是原子核的一种重要运动形态,对裂变现象及其机制的研究是原子核物理学的一个重要方面。对于静止靶核的裂变已经进行过大量的研究,但对相对论性原子核的裂变现象的研究还刚刚开始。EMU-01国际合作组用西欧核子中心SPS加速器把~(16)O加速到15,60和200A GeV,为核物理和粒子物理的研究开辟了一个新的领域。

Abstract: A quarternary fragmentation event of a 60 AGeV oxygen nucleus is found innuclear emulsion and measured exclusively. The mechanism of fragmentation isdiscussed. The quarternary fragmentation phenomenon provides a strong experimental evidence for the cluster model of oxygen nucleus.