Investigation of the influence of incomplete fusion on complete fusion of ¹⁶O induced reactions at moderate excitation energies

¹ Department of Physics, Bareilly College, Bareilly 243 005, India
² Department of Physics, Aligarh Muslim University, Aligarh, 202 002, India
³ Girls Senior Secondary School, Aligarh Muslim University, Aligarh, 202 002, India
⁴ Nuclear Physics Group, Inter University Accelerator Centre, New Delhi 110 067, India
⁵ Depatment of Physics, Addis Ababa University P.O.Box 1176, Addis Ababa, Ethiopia

^a e-mail: avibcb@gmail.com

Abstract

An attempt has been made to investigate for the reaction dynamics leading to incomplete fusion (ICF) of heavy ions at moderate excitation energies, especially the influence of incomplete fusion on complete fusion (CF) of ¹⁶O induced reactions at specific energies. Excitation functions (EFs) of various reaction products populated via CF and/or ICF of ¹⁶O projectile with ⁴⁵Sc target were measured at energies ≈3-7 MeV/nucleon, using recoil catcher technique followed by offline γ-ray spectroscopy. The measured EFs were compared with theoretical values obtained using the statistical model code PACE4. The experimentally measured EFs were in general found to be in good agreement with the theoretical predictions for non α-emitting channels in the present target projectile system. However, for α-emitting channels the measured EFs were higher than the predictions of the theoretical model codes, which may be credited to incomplete fusion reactions at these energies.