2026-05-02T14:49:18Z https://meral.edu.mm/oai

oai:meral.edu.mm:recid/277 2022-03-24T23:11:42Z 1582963788001:1582966489046 user-ydbu

Investigation of transition energy from sub-barrier to deep sub-barrier energies. Ei Shwe Zin Thein The recent experimental data of heavy-ion fusion cross sections available up to deep-subbarrier energies in order to discuss the threshold incident energy for a deep-subbarrier fusion hindrance phenomenon have been studied. One-dimensional potential model with a Woods-Saxon internuclear potential had employed. Fitting the experimental data in two different energy regions with different Woods-Saxon potentials, we define the threshold energy as an intersection of the two fusion excitation functions. It is found that the threshold energies so extracted are in good agreement with the empirical systematics as well as with the values of the Krappe-Nix-Sierk (KNS) potential at the touching point. We also discuss the asymptotic energy shift of fusion cross sections with respect to the potential model calculations, and show that it decreases with decreasing energies in the deep-subbarrier region, although it takes a constant value at subbarrier energies. 2016 http://hdl.handle.net/20.500.12678/0000000277 https://meral.edu.mm/records/277