FRAGMENTATION PATTERNS OF ARGON AT ~ 1A AND 2A GeV IN COLLISIONS WITH EMULSION

摘要

This paper combines the results due to interactions of ~(40)Ar at two energies 1A and 1.88A GeV in emulsion targets. We discuss and identify the projectile fragments with charge 2 < Z < 18. The identification of projectile fragments is based on two measuring methods 5-ray and gap density. The charges tend to appear in groups Z(2-8), (9-13) and Z > 14 with a positive long-range correlation. A polynomial function form describes well the δ-ray multiplicity distributions correlating the two used ~(40)Ar beams with each other. A correlation between the average values of δ-ray and gap densities is depicted. We can correlate the values of δ-ray density per fragment and the corresponding gap densities with the fragment charge.