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Simultaneous measurement of beta-delayed proton and gamma emission of P-26 for the Al-25 (p , gamma) Si-26 reaction rate

文献类型：期刊论文

作者Liang, P. F.1; Sun, L. J.3; Lee, J.1; Hou, S. Q.4; Xu, X. X.1,4; Lin, C. J.2,5; Yuan, C. X.6; He, J. J.7,8; Li, Z. H.9; Wang, J. S.4,8,10
刊名PHYSICAL REVIEW C
出版日期2020-02-14
卷号101期号:2页码:8
ISSN号2469-9985
DOI10.1103/PhysRevC.101.024305
通讯作者Lee, J.(jleehc@hku.hk)
英文摘要The beta decay of P-26 was used to populate the astrophysically important E-x = 5929.4(8) keV, J(pi) = 3(+) state of Si-26. Both beta-delayed protons at 418(8) keV and gamma rays at 1742(2) keV emitted from this state were measured simultaneously for the first time, and the corresponding absolute intensities have been estimated as 11.1(12)% and 0.59(44)%, respectively. The half-life of P-26 has been determined to be 43.6(3) ms, which is in good agreement with previous experimental results. Besides, shell-model calculations with weakly bound effects were performed to investigate the decay properties of other resonant states and a spin-parity of 4(+) rather than 0(+) is favored for the E-x = 5945.9(40) keV state. Combining the experimental results and theoretical calculations, the Al-25(p, gamma)Si- 26 reaction rate in explosive hydrogen burning environments was calculated. The new determined total reaction rate is consistent with previous studies at T > 0.2 GK.
WOS关键词MASSIVE STARS ; RAY LINES ; DECAY ; NUCLEOSYNTHESIS ; NUCLEAR
资助项目Ministry of Science and Technology of China under the National Key RD Programs[2016YFA0400503] ; Ministry of Science and Technology of China under the National Key RD Programs[2018YFA0404404] ; National Natural Science Foundation of China[U1932206] ; National Natural Science Foundation of China[U1632136] ; National Natural Science Foundation of China[11635015] ; National Natural Science Foundation of China[11805120] ; National Natural Science Foundation of China[11705244] ; National Natural Science Foundation of China[U1432246] ; National Natural Science Foundation of China[11775316] ; National Natural Science Foundation of China[U1732145] ; National Natural Science Foundation of China[11705285] ; National Natural Science Foundation of China[U1867212] ; National Natural Science Foundation of China[11805280] ; National Natural Science Foundation of China[11825504] ; National Natural Science Foundation of China[11675229] ; National Natural Science Foundation of China[11490562] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019406] ; Continuous Basic Scientific Research Project[WDJC-2019-13] ; China Postdoctoral Science Foundation[2017M621442] ; China Postdoctoral Science Foundation[2017M621035] ; Office of China Postdoctoral Council under the International Postdoctoral Exchange Fellowship Program (Talent-Dispatch Program)[20180068]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000513577400001
资助机构Ministry of Science and Technology of China under the National Key RD Programs ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Continuous Basic Scientific Research Project ; China Postdoctoral Science Foundation ; Office of China Postdoctoral Council under the International Postdoctoral Exchange Fellowship Program (Talent-Dispatch Program)
源URL[http://119.78.100.186/handle/113462/141071]  
专题中国科学院近代物理研究所
通讯作者Lee, J.
作者单位1.Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
2.China Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China
3.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
5.Guangxi Normal Univ, Coll Phys & Technol, Guilin 541004, Peoples R China
6.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
7.Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
10.Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China
推荐引用方式
GB/T 7714		 Liang, P. F.,Sun, L. J.,Lee, J.,et al. Simultaneous measurement of beta-delayed proton and gamma emission of P-26 for the Al-25 (p , gamma) Si-26 reaction rate[J]. PHYSICAL REVIEW C,2020,101(2):8.
APA Liang, P. F..,Sun, L. J..,Lee, J..,Hou, S. Q..,Xu, X. X..,...&Zhao, Y. M..(2020).Simultaneous measurement of beta-delayed proton and gamma emission of P-26 for the Al-25 (p , gamma) Si-26 reaction rate.PHYSICAL REVIEW C,101(2),8.
MLA Liang, P. F.,et al."Simultaneous measurement of beta-delayed proton and gamma emission of P-26 for the Al-25 (p , gamma) Si-26 reaction rate".PHYSICAL REVIEW C 101.2(2020):8.

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来源：近代物理研究所

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