Effect of the Critical Angular Momentum on Incomplete Fusion Dynamics

An attempt has been made to calculate the critical angular momentum ( ℒ crit ) from the experimentally measured total ER cross-sections and are compared with Bass model predictions (using PACE-2). A comparison between experimentally measured and theoretically calculated critical angular momentum for the systems 16 O + 45 Sc and 16 O + 74 g e has been done. In case of 16 O + 45 Sc system, it is found that the experimentally measured ℒ crit values are slightly lower than the theoretically calculated values at projectile energies from 66 to 114 MeV. t he low values of ℒ crit associated with IC f -channels for this system suggests that at these projectile energies, IC f may not be strictly associated with peripheral collision. Instead there appears to be deeper penetration of the projectile with the target at these beam energies. But for the system 16 O + 74 g e at projectile energies from 65 to 112 MeV, the experimentally measured ℒ crit -values are consistent with theoretically calculated values. t his shows that ℒ crit -values associated with IC f channels for this system suggests that at these projectile energies, IC f may be associated with peripheral collision.