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Re-investigation of Neutron Capture by $$^{84}$$ Kr and $$^{86}$$ Kr in the s-Process Nucleosynthesis
Brazilian Journal of Physics ( IF 1.6 ) Pub Date : 2024-03-27 , DOI: 10.1007/s13538-024-01455-5
Abdul Kabir , Zain Ul Abideen , Jameel-Un Nabi

The thermonuclear reaction rates and Maxwellian-averaged cross-sections (MACS) for the \(^{84}\)Kr(n,\(\gamma\))\(^{85}\)Kr and \(^{86}\)Kr(n,\(\gamma\))\(^{87}\)Kr processes were examined using the statistical model code Talys v1.96. The effects of nuclear level densities (NLDs) on Maxwellian-averaged cross-sections and neutron capture rates are examined both quantitatively and qualitatively. The present Talys-based MACS and radiative capture rates for \(^{84}\)Kr(n,\(\gamma\))\(^{85}\)Kr and \(^{86}\)Kr(n,\(\gamma\))\(^{87}\)Kr processes agree well with the earlier reported findings. The statistical model’s nuclear properties (level density and gamma ray strength) were fine-tuned to reproduce the existing experimental nuclear data.



中文翻译:

重新研究 s 过程核合成中 $$^{84}$$ Kr 和 $$^{86}$$ Kr 捕获中子的情况

\(^{84}\) Kr(n, \(\gamma\) ) \(^{85}\) Kr 和\(^{86)的热核反应速率和麦克斯韦平均截面 (MACS) }\) Kr(n, \(\gamma\) ) \(^{87}\) Kr 过程使用统计模型代码 Talys v1.96 进行检查。定量和定性地研究了核能级密度(NLD)对麦克斯韦平均截面和中子捕获率的影响。当前基于 Talys 的 MACS 和\(^{84}\) Kr(n, \(\gamma\) ) \(^{85}\) Kr 和\(^{86}\) Kr( n, \(\gamma\) ) \(^{87}\) Kr 过程与早期报告的发现非常吻合。对统计模型的核特性(能级密度和伽马射线强度)进行了微调,以重现现有的实验核数据。

更新日期:2024-03-27
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