中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Reevaluation of thermonuclear reaction rate of Fe-50(p, gamma)Co-51

文献类型:期刊论文

作者Zhang, Li-Ping1; He, Jian-Jun2; Chai, Wan-Dong1; Hou, Su-Qing3; Zhang, Li-Yong3
刊名CHINESE PHYSICS C
出版日期2016-12-01
卷号40页码:7
关键词X-ray burst (XRB) nucleosynthesis mass measurement proton separation energy reaction rate
ISSN号1674-1137
DOI10.1088/1674-1137/40/12/125101
英文摘要The thermonuclear rate of the Fe-50(p, gamma)Co-51 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 Co-51 nucleus. Comparing to the previous theoretical predictions, the experimental Si, 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 Fe-50(p, gamma)Co-51 reaction by utilizing the experimental Si, 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 Co-51. In this work, we recommend that a set of new reaction rates based on the mirror structure of Cr-51 should be incorporated in future astrophysical network calculations.
WOS关键词ATOMIC MASS EVALUATION ; X-RAY-BURSTS ; D,P REACTION ; RP-PROCESS ; MODELS ; TABLE
资助项目Natural Science Foundation of Inner Mongolia Autonomous Region of China[2013MS0916] ; National Natural Science Foundation of China[11490562] ; National Natural Science Foundation of China[11405228]
WOS研究方向Physics
语种英语
WOS记录号WOS:000392556900013
出版者CHINESE PHYSICAL SOC
资助机构Natural Science Foundation of Inner Mongolia Autonomous Region of China ; National Natural Science Foundation of China
源URL[http://119.78.100.186/handle/113462/44205]  
专题中国科学院近代物理研究所
通讯作者He, Jian-Jun
作者单位1.Chifeng Univ, Coll Phys & Elect Informat Engn, Chifeng 024000, Peoples R China
2.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
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GB/T 7714
Zhang, Li-Ping,He, Jian-Jun,Chai, Wan-Dong,et al. Reevaluation of thermonuclear reaction rate of Fe-50(p, gamma)Co-51[J]. CHINESE PHYSICS C,2016,40:7.
APA Zhang, Li-Ping,He, Jian-Jun,Chai, Wan-Dong,Hou, Su-Qing,&Zhang, Li-Yong.(2016).Reevaluation of thermonuclear reaction rate of Fe-50(p, gamma)Co-51.CHINESE PHYSICS C,40,7.
MLA Zhang, Li-Ping,et al."Reevaluation of thermonuclear reaction rate of Fe-50(p, gamma)Co-51".CHINESE PHYSICS C 40(2016):7.

入库方式: OAI收割

来源:近代物理研究所

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