arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1408.6498nucl-ex
收藏

约束r-过程(n,$γ$)反应速率的新技术

Novel technique for constraining r-process (n,$γ$) reaction rates

A. Spyrou, S. N. Liddick, A. C. Larsen, M. Guttormsen, K. Cooper, A. C. Dombos, D. J. Morrissey, F. Naqvi, G. Perdikakis, S. J. Quinn, T. Renstrøm, J. A. Rodrig… 展开作者

A. Spyrou, S. N. Liddick, A. C. Larsen, M. Guttormsen, K. Cooper, A. C. Dombos, D. J. Morrissey, F. Naqvi, G. Perdikakis, S. J. Quinn, T. Renstrøm, J. A. Rodriguez, A. Simon, C. S. Sumithrarachchi, R. G. T. Zegers

摘要:

一种新的技术已经开发出来,这将为研究r过程中涉及的非常富中子的核打开令人兴奋的新机会。作为一个证明的原则,$γ$ -光谱从$β$ -衰变的$^{76}$镓已被测量与太阳探测器在国家超导回旋加速器实验室。提取核能级密度和$γ$射线强度函数,并将其用作Hauser-Feshbach计算的输入。本技术被示出强烈地约束$^{75}$ Ge($n,γ$)$^{76}$ Ge截面和反应速率。

英文摘要:

A novel technique has been developed, which will open exciting new opportunities for studying the very neutron-rich nuclei involved in the r-process. As a proof-of-principle, the $γ$-spectra from the $β$-decay of $^{76}$Ga have been measured with the SuN detector at the National Superconducting Cyclotron Laboratory. The nuclear level density and $γ$-ray strength function are extracted and used as input to Hauser-Feshbach calculations. The present technique is shown to strongly constrain the $^{75}$Ge($n,γ$)$^{76}$Ge cross section and reaction rate.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑