Near-barrier neutron transfer in reactions with 3He nucleus

Abstract

Experimental cross sections for the formation of ^196,198Au isotopes in the ³He + ¹⁹⁷Au reaction and ^44,46Sc isotopes in the ³He + ⁴⁵Sc reaction are analyzed. To calculate transfer probabilities and cross sections, the time-dependent Schrödinger equation is numerically solved for the external neutrons of the ³He, ⁴⁵Sc, and ¹⁹⁷Au nuclei. It is shown that the contribution from the fusion channel with subsequent evaporation is important for the ³He + ⁴⁵Sc reaction and negligibly small for the ³He + ¹⁹⁷Au reaction. Fusion–evaporation is taken into account using the NRV and PACE codes. Calculation results demonstrate overall satisfactory agreement with experimental data.