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beta-decay rate of Fe-59 in shell burning environment and its influence on the production of Fe-60 in a massive star

文献类型：期刊论文

作者Li, K. A.1; Lam, Y. H.1; Qi, C.2; Tang, X. D.1; Zhang, N. T.1
刊名PHYSICAL REVIEW C
出版日期2016-12-29
卷号94页码:7
ISSN号2469-9985
DOI10.1103/PhysRevC.94.065807
英文摘要We deduced the stellar beta-decay rate of Fe-59 at typical carbon-shell burning temperature by taking the experimental Gamow-Teller transition strengths of the Fe-59 excited states. The result is also compared with those derived from large-scale shell model calculations. The new rate is up to a factor of 2.5 lower than the theoretical rate of Fuller, Fowler, and Newman (FFN) and up to a factor of 5 higher than decay rate of Langanke and Martinez-Pinedo (LMP) in the temperature region 0.5 <= T <= 2 GK. We estimated the impact of the newly determined rate on the synthesis of cosmic gamma emitter Fe-60 in C-shell burning and explosive C/Ne burning using a one-zone model calculation. Our results show that Fe-59 stellar beta decay plays an important role in Fe-60 nucleosynthesis, even though the uncertainty of the decay rate is rather large due to the error of B(GT) strengths.
WOS关键词WEAK INTERACTION RATES ; SOLAR METALLICITY ; ENERGY-LEVELS ; NUCLEI ; NUCLEOSYNTHESIS ; DISTRIBUTIONS ; IMPACT ; AL-26
资助项目National Key Research and Development program[MOST 2016YFA0400501] ; Ministry of Science and Technology of China (Talented Young Scientist Program) ; China Postdoctoral Foundation[2014M562481] ; National Science Foundation of China[U1232208] ; National Science Foundation of China[U1432125] ; Swedish Research Council (VR)[621-2012-3805] ; Swedish Research Council (VR)[621-2013-4323] ; Goran Gustafsson foundation ; National Natural Science Foundation of China[11021504] ; National Natural Science Foundation of China[11321064] ; National Natural Science Foundation of China[11475228] ; National Natural Science Foundation of China[11490564] ; 100 talents Program of the Chinese Academy of Sciences ; National Science Foundation[PHY-1430152]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000391015800005
资助机构National Key Research and Development program ; Ministry of Science and Technology of China (Talented Young Scientist Program) ; China Postdoctoral Foundation ; National Science Foundation of China ; Swedish Research Council (VR) ; Goran Gustafsson foundation ; National Natural Science Foundation of China ; 100 talents Program of the Chinese Academy of Sciences ; National Science Foundation
源URL[http://119.78.100.186/handle/113462/44065]  
专题中国科学院近代物理研究所
通讯作者Li, K. A.; Lam, Y. H.; Qi, C.
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Royal Inst Technol, Dept Phys, Stockholm, Sweden
推荐引用方式
GB/T 7714		 Li, K. A.,Lam, Y. H.,Qi, C.,et al. beta-decay rate of Fe-59 in shell burning environment and its influence on the production of Fe-60 in a massive star[J]. PHYSICAL REVIEW C,2016,94:7.
APA Li, K. A.,Lam, Y. H.,Qi, C.,Tang, X. D.,&Zhang, N. T..(2016).beta-decay rate of Fe-59 in shell burning environment and its influence on the production of Fe-60 in a massive star.PHYSICAL REVIEW C,94,7.
MLA Li, K. A.,et al."beta-decay rate of Fe-59 in shell burning environment and its influence on the production of Fe-60 in a massive star".PHYSICAL REVIEW C 94(2016):7.

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来源：近代物理研究所

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