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Description of Nb-93 stellar electron-capture rates by the projected shell model
Wang, Long-Jun1; Tan, Liang1; Li, Zhipan1; Gao, Bingshui2,3; Sun, Yang4
Corresponding AuthorWang, Long-Jun(longjun@swu.edu.cn)
2021-12-27
Source PublicationPHYSICAL REVIEW C
ISSN2469-9985
Volume104Issue:6Pages:11
AbstractCapture of electrons by nuclei is an important process in stellar environments where excited nuclear states are thermally populated. However, accurate treatment for excited configurations in electron capture (EC) rates has been an unsolved problem for medium-heavy and heavy nuclei. In this work, we take the 93Nb -> 93Zr EC rates as the example to introduce the projected-shell model (PSM) in which excited configurations are explicitly included as multi-quasiparticle states. Applying the prevalent assumption that the parent nucleus always stays in its ground state in stellar conditions, we critically compare the obtained PSM results with the recently measured Gamow-Teller transition data, and with the previous calculations by the conventional shell model and the quasiparticle random-phase approximation. We discuss important ingredients that are required in theoretical models used for stellar EC calculations, and demonstrate effects of the explicit inclusion of excited nuclear states in EC rate calculations, especially when both electron density and environment temperature are high.
DOI10.1103/PhysRevC.104.064323
Indexed BySCI
Language英语
Funding ProjectFundamental Research Funds for the Central Universities[SWU019013] ; National Natural Science Foundation of China[11905175] ; National Natural Science Foundation of China[11875225] ; National Natural Science Foundation of China[U1932206] ; National Key Program for S&T Research and Development[2016YFA0400501] ; Venture & Innovation Support Program for Chongqing Overseas Returnees[cx2019056]
WOS Research AreaPhysics
WOS KeywordWEAK-INTERACTION RATES ; INTERMEDIATE-MASS NUCLEI ; RATE TABLES ; SUPERNOVAE
WOS SubjectPhysics, Nuclear
WOS IDWOS:000738744200006
PublisherAMER PHYSICAL SOC
Funding OrganizationFundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Key Program for S&T Research and Development ; Venture & Innovation Support Program for Chongqing Overseas Returnees
Citation statistics
Document Type期刊论文
Identifierhttp://119.78.100.186/handle/113462/142478
Collection中国科学院近代物理研究所
Corresponding AuthorWang, Long-Jun
Affiliation1.Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
2.Chinese Acad Sci, Inst Modem Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Gansu, Peoples R China
3.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
4.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China
Recommended Citation
GB/T 7714
Wang, Long-Jun,Tan, Liang,Li, Zhipan,et al. Description of Nb-93 stellar electron-capture rates by the projected shell model[J]. PHYSICAL REVIEW C,2021,104(6):11.
APA Wang, Long-Jun,Tan, Liang,Li, Zhipan,Gao, Bingshui,&Sun, Yang.(2021).Description of Nb-93 stellar electron-capture rates by the projected shell model.PHYSICAL REVIEW C,104(6),11.
MLA Wang, Long-Jun,et al."Description of Nb-93 stellar electron-capture rates by the projected shell model".PHYSICAL REVIEW C 104.6(2021):11.
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