Examining the impact of alpha-decay energies on the odd-even staggering in half-lives: alpha-decay spectroscopy of 207-209Ac

doi:10.1103/PhysRevC.106.064311

兰州大学机构库

	Examining the impact of alpha-decay energies on the odd-even staggering in half-lives: alpha-decay spectroscopy of 207-209Ac
	Yang, H. B.1,2; Gan, Z. G.1,3; Zhang, Z. Y.1,3; Huang, M. H.1,3; Ma, L.1; Zhang, M. M.1; Yang, C. L.1,3; Tian, Y. L.1,3; Wang, Y. S.1,3,4; Zhou, H. B.5; Wen, X. J.5; Wang, J. G.1,3; Zhao, Z.1,3; Xu, S. Y.1,3; Chen, L. X.1,3; Huang, X. Y.1,3...更多 Yang, H. B.1,2; Gan, Z. G.1,3; Zhang, Z. Y.1,3; Huang, M. H.1,3; Ma, L.1; Zhang, M. M.1; Yang, C. L.1,3; Tian, Y. L.1,3; Wang, Y. S.1,3,4; Zhou, H. B.5; Wen, X. J.5; Wang, J. G.1,3; Zhao, Z.1,3; Xu, S. Y.1,3; Chen, L. X.1,3; Huang, X. Y.1,3; Yuan, C. X.6; Niu, Y. F.4; Yang, H. R.1,3; Huang, W. X.1,3; Liu, Z.1,3; Zhou, X. H.1,3; Zhang, Y. H.1,3; Zhou, S. G.3,7; Ren, Z. Z.8; Xu, H. S.1,3; Utyonkov, V. K.2; Voinov, A. A.2; Tsyganov, Yu. S.2; Polyakov, A. N.2; Solovyev, D. I.2收起
	2022-12-12
Source Publication	PHYSICAL REVIEW C
ISSN	2469-9985
Volume	106 Issue:6
Abstract	The alpha decays of 207-209Ac, located near the proton drip-line, were reinvestigated by means of alpha-decay spectroscopy. They were produced in the fusion reaction 36Ar +176Hf and separated in flight using the gas-filled recoil separator SHANS. A new alpha-decay line at 7483(15) keV was observed and assigned as the decay from the ground state of 208Ac to the excited (2+) or (4+) state in 204Fr. In addition, the previously known alpha-decay properties of 207-209Ac were measured with improved precision. The half-lives obtained, together with the existing decay data of other N 126 actinium isotopes, were compared with the values calculated with the Wentzel-Kramers-Brillouin approximation and without considering the alpha-preformation factors. It is shown that the calculated half-lives exhibit a distinct odd-even staggering (OES) following the same trend as the experimental data, whereas the amplitudes of the exhibited OES are 30-60 % of the real ones. This implies that apart from the alpha-preformation factors, the alpha-decay energies also contribute significantly to the OES of alpha-decay half-lives.
Publisher	AMER PHYSICAL SOC
DOI	10.1103/PhysRevC.106.064311
Indexed By	SCIE
Language	英语
WOS Research Area	Physics
WOS Subject	Physics, Nuclear
WOS ID	WOS:000905079600007
Original Document Type	Article
Citation statistics
Document Type	期刊论文
Identifier	https://ir.lzu.edu.cn/handle/262010/492916
Collection	兰州大学
Affiliation	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; 2.Joint Inst Nucl Res, Flerov Lab Nucl React, RU-141980 Dubna, Russia; 3.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China; 4.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China; 5.Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Technol, Guilin 541004, Peoples R China; 6.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China; 7.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; 8.Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
First Author Affilication	School of Nuclear Science and Technology
Recommended Citation GB/T 7714	Yang, H. B.,Gan, Z. G.,Zhang, Z. Y.,et al. Examining the impact of alpha-decay energies on the odd-even staggering in half-lives: alpha-decay spectroscopy of 207-209Ac[J]. PHYSICAL REVIEW C,2022,106(6).
APA	Yang, H. B..,Gan, Z. G..,Zhang, Z. Y..,Huang, M. H..,Ma, L..,...&Solovyev, D. I..(2022).Examining the impact of alpha-decay energies on the odd-even staggering in half-lives: alpha-decay spectroscopy of 207-209Ac.PHYSICAL REVIEW C,106(6).
MLA	Yang, H. B.,et al."Examining the impact of alpha-decay energies on the odd-even staggering in half-lives: alpha-decay spectroscopy of 207-209Ac".PHYSICAL REVIEW C 106.6(2022).

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