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 \(^{121}\)Sb is a stable seed isotope located in the region of medium-mass p-nuclei, we investigated the cross sections and reaction rates of the \(^{121}\)Sb(\(\alpha\),\(\gamma\))\(^{125}\)I reaction using the TALYS computer code with 432 different 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.
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by ME, CY, and RTG. The first draft of the manuscript was written by RTG, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Eroğlu, M., Yalçın, C. & Güray, R.T. Investigation of the 121Sb(α,γ)125I reaction cross-section calculations at astrophysical energies. NUCL SCI TECH 34, 168 (2023). https://doi.org/10.1007/s41365-023-01301-4
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DOI: https://doi.org/10.1007/s41365-023-01301-4