TALYS calculations for α capture reactions on Cu isotopes

Abstract

Within the present work, previously measured experimental cross-sections of the ⁶³Cu(α,γ)⁶⁷Ga reaction at astrophysical energies are compared with a variety of different theoretical calculations. Utilizing the nuclear reaction code TALYS (v1.96), the research incorporates all available models for the α-particle Optical Model Potential (α-OMP), Nuclear Level Densities (NLD), and γ-ray Strength Functions (γ-SF), as well as, all the combinations of the aforementioned parameters, resulting in a large number of theoretical calculations. The primary goal is to optimize the parametrization of the HF calculations to best describe the experimental data. The same methodology is applied to the ⁶⁵Cu(α,γ)⁶⁹Ga reaction to comprehensively examine the impact of different models on cross-section calculations in this mass region. While this work is ongoing, preliminary results are presented within this contribution.