Probing uncertainties in proton capture on selected p-nuclei: a Monte Carlo investigation with TALYS-1.96

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0201316" target="_blank" >RIV/00216305:26220/26:0201316 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1402-4896/ade747/pdf?utm_source=clarivate&getft_integrator=clarivate" target="_blank" >https://iopscience.iop.org/article/10.1088/1402-4896/ade747/pdf?utm_source=clarivate&getft_integrator=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1402-4896/ade747" target="_blank" >10.1088/1402-4896/ade747</a>

Result language
angličtina
Original language name
Probing uncertainties in proton capture on selected p-nuclei: a Monte Carlo investigation with TALYS-1.96
Original language description
Understanding proton capture reactions on p-nuclei is of interest for modeling nucleosynthesis in proton-rich astrophysical environments, but their theoretical description remains subject to significant uncertainties, which can influence the reliability of such models. This study investigates the sensitivity of reaction cross-sections and rates to variations in nuclear model inputs for proton capture on selected p-nuclei. The reactions 92Mo(p, gamma)93,gTc, 92Mo(p, gamma)93,mTc, 94Mo(p, gamma)95,gTc, 74Se(p, gamma)75Br, and 76Se(p, gamma)77Br are examined within the incident proton energy range of 1 to 6 MeV. Theoretical calculations are performed using the TALYS-1.96 nuclear reaction code, and Monte Carlo simulations are employed to propagate uncertainties in the optical model and level density parameters. The resulting distributions of reaction observables provide a quantitative assessment of how model input variations influence predicted outcomes. While limited to a small set of nuclei, the results provide a preliminary indication of the sensitivity of model predictions to input parameters and may assist in guiding future efforts to reduce theoretical uncertainties in reaction rate evaluations for the p-process.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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