Investigation of the 121Sb(α,γ)125I reaction cross-section calculations at astrophysical energies
Citation
Eroğlu, M., Yalçın, C., & Güray, R. T. (2023). Investigation of the 121Sb (α, γ) 125I reaction cross-section calculations at astrophysical energies. Nuclear Science and Techniques, 34(11), 168.Abstract
Proton-rich nuclei are synthesized via photodisintegration and reverse reactions. To examine this mechanism and reproduce
the observed p-nucleus abundances, it is crucial to know the reaction rates and thereby the reaction cross sections of many
isotopes. Given that the number of experiments on the reactions in astrophysical energy regions is very rare, the reaction
cross sections are determined by theoretical methods whose accuracy should be tested. In this study, given that 121Sb is a
stable seed isotope located in the region of medium-mass p-nuclei, we investigated the cross sections and reaction rates
of the 121Sb(훼,훾)
125I reaction using the TALYS computer code with 432 diferent combinations of input parameters (OMP,
LDM, and SFM). The optimal model combinations were determined using the threshold logic unit method. The theoretical
reaction cross-sectional results were compared with the experimental results reported in the literature. The reaction rates
were determined using the two input parameter sets most compatible with the measurements, and they were compared with
the reaction rate databases: STARLIB and REACLIB.
