Using a CR-39 plastic track detector, it is proved that the low energy light fragments (5≤Z≤26) produced in the interaction of 84 MeV/nucleon ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ with a Pb target originate predominantly from the binary breakup. The characteristics of light fragments and their corresponding heavy partners have been determined. The dependence of measured parameters on the atomic numbers of light fragments is observed. The obtained values of the velocity of the c.m. system of fragments indicate that high longitudinal momentum transfer to the target is characteristic for this reaction channel. The data are consistent with the assumption that at the energy used in this experiment the projectile is stopped in the target nucleus.

• Received 2 December 1985

DOI:https://doi.org/10.1103/PhysRevC.34.170