Behavior of secondary particles emitted in relativistic heavy-ion interactions

• Published in: Physics letters. B Vol. 112; no. 1; pp. 31 - 34
• Main Authors: Aggarwal, M.M., Bhalla, K.B., Das, G., Jain, P.L.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.1982
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(82)90899-1

The interaction mean free paths in nuclear emulsions of relativistic projectile fragments, 3 ⩽ Z ⩽ 26 emitted from heavy-ion beams of 40Ar and 56Fe at an energy of ∼ 2 GeV/nucleon have been measured and they are found to be shorter when determined from fragments interacting in the first few centimeters after their emissions as compared with interactions occurring within larger distances or with predictions from experiments on accelerated primary beams. There appears to be a threshold for this abnormal effect in the energy region of about 1 GeV/nucleon.