Abstract
Background: It is understood from the recent experimental studies that prompt/resonant breakup, and transfer followed by breakup in the weakly bound -induced reactions play a significant role in the complete-incomplete fusion (CF-ICF), suppression/enhancement in the fusion cross section around the Coulomb barrier.
Purpose: Investigation of ICF over CF by measuring cross sections of the populated residues, produced via different channels in the -induced reaction on a target within the 3–6.5 MeV/nucleon energy region.
Method: The beam was allowed to hit the self-supporting targets, backed by the aluminium (Al) foil alternately, within 3–6.5 MeV/nucleon energy. Populated residues were identified by offline -ray spectrometry. Measured excitation functions of different channels were compared with different equilibrium and pre-equilibrium models.
Result: The enhancement in cross sections in the proton ( MeV) and -emitting channels, which may be ascribed to ICF, was observed in the measured energy range when compared to the Hauser-Feshbach and exciton model calculations using empire, which satisfactorily reproduces the neutron channels, compared to the Weisskopf-Ewing model and hybrid Monte Carlo calculations. The increment of the incomplete fusion fraction was observed with rising projectile energy.
Conclusion: Contrary to the alice14, experimental results are well reproduced by the empire throughout the measured energy range. The signature of ICF over CF indicates that the breakup/transfer processes are involved in the weakly bound -induced reaction on slightly above the Coulomb barrier.
- Received 30 August 2017
DOI:https://doi.org/10.1103/PhysRevC.96.044624
©2017 American Physical Society