NAOC Open IR
reevaluationofthermonuclearreactionrateof50fep51co
Zhang Liping1; He Jianjun2; Chai Wandong1; Hou Suqing3; Zhang Liyong3
2016
Source Publicationchinesephysicsc
ISSN1674-1137
Volume40Issue:12Pages:125101_01
AbstractThe thermonuclear rate of the ~(50)Fe(p, γ)~(51)Co reaction in the Type I X-ray bursts (XRBs) temperature range has been reevaluated based on a recent precise mass measurement at CSRe Lanzhou, where the proton separation energy S_P=142±77 keV has been determined firstly for the ~(51)Co nucleus. Comparing to the previous theoretical predictions, the experimental S_P value has much smaller uncertainty. Based on the nuclear shell model and mirror nuclear structure information, we have calculated two sets of thermonuclear rates for the ~(50)Fe(p, 7)~(51)Co reaction by utilizing the experimental S_P value. It shows that the statistical-model calculations are not ideally applicable for this reaction primarily because of the low density of low-lying excited states in ~(51)Co. In this work, we recommend that a set of new reaction rates based on the mirror structure of ~(51)Cr should be incorporated in future astrophysical network calculations.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/40332
Collection中国科学院国家天文台
Affiliation1.赤峰学院
2.中国科学院国家天文台
3.中国科学院近代物理研究所
Recommended Citation
GB/T 7714
Zhang Liping,He Jianjun,Chai Wandong,et al. reevaluationofthermonuclearreactionrateof50fep51co[J]. chinesephysicsc,2016,40(12):125101_01.
APA Zhang Liping,He Jianjun,Chai Wandong,Hou Suqing,&Zhang Liyong.(2016).reevaluationofthermonuclearreactionrateof50fep51co.chinesephysicsc,40(12),125101_01.
MLA Zhang Liping,et al."reevaluationofthermonuclearreactionrateof50fep51co".chinesephysicsc 40.12(2016):125101_01.
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