Abstract

In an emulsion stack exposed to the beam of12C nuclei with momentum of 4.5 A GeV/c, 1635 fragments ofZ=2 and 397 ofZ≥3 from 255012C-Em collisions have been recorded. After careful estimation of charge, these fragments were followed until they interacted or left the stack. Statistical analysis of the interaction mean free path of these fragments was performed. No evidence was found for the anomalously short mean free path in the first few centimetres of the point of emission forZ=2 fragments. However, fragments ofZ≥3, produced in peripheral collisions, gave evidence for anomalously shorter mean free path in the first few centimetres after their production.

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