Current AGB stellar models provide an adequate description of the s-process nucleosynthesis that occurs. Nonetheless, they still suffer from many uncertainties related to the modeling of the ${}^{13}\mathrm{C}$ pocket formation and the adopted nuclear reaction rates. For many important s-process isotopes, a best set of neutron-capture cross sections was recently re-evaluated. Using stellar models prescribing that the ${}^{13}\mathrm{C}$ pocket is a by-product of magnetic-buoyancy-induced mixing phenomena, s-process calculations were carried out with this database. Significant effects are found for a few s-only and branching point isotopes, pointing out the need for improved neutron-capture cross section measurements at low energy.

中文翻译：

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根据修正的中子俘获截面对渐近巨星分支星的 s 处理

当前的 AGB 恒星模型提供了对发生的 s 过程核合成的充分描述。尽管如此，他们仍然受到与模型建模相关的许多不确定性的影响。${}^{13}\mathrm{C}$口袋形成和采用的核反应速率。对于许多重要的 s 过程同位素，最近重新评估了一组最佳中子捕获截面。使用恒星模型规定${}^{13}\mathrm{C}$口袋是磁浮力引起的混合现象的副产品，使用该数据库进行了 s 过程计算。发现了少数 s-only 和分支点同位素的显着影响，指出需要改进低能量下的中子捕获截面测量。