Description of Nb-93 stellar electron-capture rates by the projected shell model

doi:10.1103/PhysRevC.104.064323

	Description of Nb-93 stellar electron-capture rates by the projected shell model
	Wang, Long-Jun 1; Tan, Liang 1; Li, Zhipan 1; Gao, Bingshui 2,3; Sun, Yang 4
刊名	PHYSICAL REVIEW C
	2021-12-27
卷号	104 期号:6 页码:11
ISSN号	2469-9985
DOI	10.1103/PhysRevC.104.064323
通讯作者	Wang, Long-Jun(longjun@swu.edu.cn)
英文摘要	Capture 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.
资助项目	Fundamental 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关键词	WEAK-INTERACTION RATES ; INTERMEDIATE-MASS NUCLEI ; RATE TABLES ; SUPERNOVAE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000738744200006
资助机构	Fundamental 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
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/142477]
专题	中国科学院近代物理研究所
通讯作者	Wang, Long-Jun
作者单位	1.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
推荐引用方式 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.