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First result from the Jinping Underground Nuclear Astrophysics experiment JUNA: precise measurement of the 92 keV 25Mg(p, γ)26Al resonance.
Su, Jun; Zhang, Hao; Li, Zhihong; Ventura, Paolo; Li, Yunju; Li, Ertao; Chen, Chen; Shen, Yangping; Lian, Gang; Guo, Bing; Li, Xinyue; Zhang, Liyong; He, Jianjun; Sheng, Yaode; Chen, Yinji; Wang, Luohuan; Zhang, Long; Cao, Fuqiang; Nan, Wei; Nan, Weike; Li, Gexing; Song, Na; Cui, Baoqun; Chen, Lihua; Ma, Ruigang; Zhang, Zhicheng; Jiao, Taoyu; Gao, Bingshui; Tang, Xiaodong; Wu, Qi; Li, Jiaqing; Sun, Liangting; Wang, Shuo; Yan, Shengquan; Liao, Junhui; Wang, Youbao; Zeng, Sheng; Nan, Ding; Fan, Qiwen; Qi, Ningchun; Sun, Wenliang; Guo, Xuyuan; Zhang, Peng; Chen, Yunhua; Zhou, Yong; Zhou, Jifang; He, Jinrong; Shang, Changsong; Li, Mingchuan; Cheng, Jianping.
Afiliação
  • Su J; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Zhang H; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Li Z; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 101408, China. Electronic address: zhli@ciae.ac.cn.
  • Ventura P; INAF, Osservatorio Astronomico di Roma, Via Frascati 33, Monte Porzio Catone (RM) 00077, Italy.
  • Li Y; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Li E; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
  • Chen C; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Shen Y; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Lian G; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Guo B; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Li X; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Zhang L; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • He J; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Sheng Y; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Chen Y; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Wang L; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
  • Zhang L; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Cao F; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Nan W; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Nan W; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Li G; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Song N; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Cui B; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Chen L; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Ma R; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Zhang Z; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
  • Jiao T; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Gao B; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Tang X; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Wu Q; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Li J; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Sun L; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Wang S; Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China.
  • Yan S; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Liao J; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Wang Y; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Zeng S; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Nan D; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Fan Q; China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
  • Qi N; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Sun W; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Guo X; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Zhang P; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Chen Y; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Zhou Y; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Zhou J; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • He J; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Shang C; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Li M; Yalong River Hydropower Development Company, Chengdu 610051, China.
  • Cheng J; Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China.
Sci Bull (Beijing) ; 67(2): 125-132, 2022 Jan 30.
Article em En | MEDLINE | ID: mdl-36546005
ABSTRACT
The 25Mg(p, γ)26Al reaction plays an important role in the study of cosmic 1.809 MeV γ-ray as a signature of ongoing nucleosynthesis in the Galaxy. At astrophysical temperature around 0.1 GK, the 25Mg(p, γ)26Al reaction rates are dominated by the 92 keV resonance capture process. We report a precise measurement of the 92 keV 25Mg(p, γ)26Al resonance in the day-one experiment at Jinping Underground Nuclear Astrophysics experiment (JUNA) facility in the China Jinping Underground Laboratory (CJPL). The resonance strength and ground state feeding factor are determined to be 3.8±0.3 ×10-10 eV and 0.66±0.04, respectively. The results are in agreement with those reported in the previous direct underground measurement within uncertainty, but with significantly reduced uncertainties. Consequently, we recommend new 25Mg(p, γ)26Al reaction rates which are by a factor of 2.4 larger than those adopted in REACLIB database at the temperature around 0.1 GK. The new results indicate higher production rates of 26gAl and the cosmic 1.809 MeV γ-ray. The implication of the new rates for the understanding of other astrophysical situations is also discussed.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Ano de publicação: 2022 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Ano de publicação: 2022 Tipo de documento: Article