Competing reaction mechanisms in complex fragment emission from the decay of ⁴³Sc* and ⁴⁴Ti* composite systems

The complex fragment emission in the decay of ⁴³Sc* and ⁴⁴Ti* composite systems formed in ¹⁶O+ ²⁷Al and ¹⁶O+ ²⁸Si reactions, respectively, within the DCM are studied. The values of FF and DIO cross-sections for different IMFs will be calculated and compared with the available Z-distribution data for the complex fragments. The preliminary results show for the decay of ⁴³Sc*, the asymmetric fission fragments (⁶Li, ¹⁰B, ¹²C, ¹³C and the complementary fragments) are highly preformed compared to symmetric fission fragments (^20,21Ne and ^22,23Na) whereas in the decay of ⁴⁴Ti*, the symmetric fission fragment (²²Na) strongly competes with asymmetric fission fragments (⁶Li, ⁸Be, ¹²C, ¹⁴N and the complementary fragments). Moreover, in the decay of ⁴³Sc*, for Z=5, 10 B is energetically favored and shows maxima in preformation profile while in case of ⁴⁴Ti*, for Z=5, 9,10 B have less preformation probability (P₀) compared to neighboring fragments having maxima in P₀. The result is in consonance/agreement with experimental data for IMFs having Z=5