Fine structure in the α decay of 223U

M.D. Sun; Z. Liu; T.H. Huang; W.Q. Zhang; A.N. Andreyev; B. Ding; J.G. Wang; X.Y. Liu; H.Y. Lu; D.S. Hou; Z.G. Gan; H.B. Yang; L. Ma; Z.Y. Zhang; L. Yu; Jian Jiang; K.L. Wang; Y.S. Wang; M.L. Liu; J. Li; Z.H. Li; X. Wang; A.H. Feng; C.J. Lin; L.J. Sun; N.R. Ma; W. Zuo; H.S. Xu; X.H. Zhou; G.Q. Xiao; C. Qi; F.S. Zhang

doi:10.1016/j.physletb.2019.135096

Fine structure in the α decay of 223U

M.D. Sun, Z. Liu, T.H. Huang, W.Q. Zhang, A.N. Andreyev, B. Ding, J.G. Wang, X.Y. Liu, H.Y. Lu, D.S. Hou, Z.G. Gan, H.B. Yang, L. Ma, Z.Y. Zhang, L. Yu, Jian Jiang, K.L. Wang, Y.S. Wang, M.L. Liu, J. LiZ.H. Li, X. Wang, A.H. Feng, C.J. Lin, L.J. Sun, N.R. Ma, W. Zuo, H.S. Xu, X.H. Zhou, G.Q. Xiao, C. Qi, F.S. Zhang

Research output: Contribution to journal › Article › peer-review

Abstract

Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.

Original language	English
Article number	135096
Number of pages	5
Journal	Physics Letters B
Volume	800
Early online date	14 Nov 2019
DOIs	https://doi.org/10.1016/j.physletb.2019.135096
Publication status	Published - 20 Jan 2020

Bibliographical note

Keywords

Fine structure
decay
Spin and parity
Reduced -decay width
Quadrupole-octupole deformation

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10.1016/j.physletb.2019.135096

Finestructureintheαdecayof223U
© 2019 The Author(s)
Final published version, 547 KBLicence: CC BY

http://www.sciencedirect.com/science/article/pii/S0370269319308184

Nuclear Physics Consolidated Grant
JENKINS, D. (Principal investigator), ANDREYEV, A. (Co-investigator), BENTLEY, M. (Co-investigator), DIGET, C. (Co-investigator), DOBACZEWSKI, J. (Co-investigator), FULTON, B. (Co-investigator), LAIRD, A. (Co-investigator), PASCHALIS, S. (Co-investigator), PASTORE, A. (Co-investigator), Petri, M. (Co-investigator) & WADSWORTH, B. (Co-investigator)
SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)
1/10/17 → 30/09/22
Project: Research project (funded) › Research
Nuclear Physics Consolidated Grant
WADSWORTH, B. (Principal investigator), WADSWORTH, B. (Principal investigator), ANDREYEV, A. (Co-investigator), ANDREYEV, A. (Co-investigator), BARTON, C. (Co-investigator), DIGET, C. (Co-investigator), DIGET, C. (Co-investigator), FULTON, B. (Co-investigator), FULTON, B. (Co-investigator), JENKINS, D. (Co-investigator), JENKINS, D. (Co-investigator), LAIRD, A. (Co-investigator) & LAIRD, A. (Co-investigator)
SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)
1/08/14 → 30/09/18
Project: Research project (funded) › Research

Cite this

Sun, M. D., Liu, Z., Huang, T. H., Zhang, W. Q., Andreyev, A. N., Ding, B., Wang, J. G., Liu, X. Y., Lu, H. Y., Hou, D. S., Gan, Z. G., Yang, H. B., Ma, L., Zhang, Z. Y., Yu, L., Jiang, J., Wang, K. L., Wang, Y. S., Liu, M. L., ... Zhang, F. S. (2020). Fine structure in the α decay of 223U. Physics Letters B, 800, Article 135096. https://doi.org/10.1016/j.physletb.2019.135096

@article{24372f3ab38941a59819f48352fca30e,

title = "Fine structure in the α decay of 223U",

abstract = "Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.",

keywords = "Fine structure, decay, Spin and parity, Reduced -decay width, Quadrupole-octupole deformation",

author = "M.D. Sun and Z. Liu and T.H. Huang and W.Q. Zhang and A.N. Andreyev and B. Ding and J.G. Wang and X.Y. Liu and H.Y. Lu and D.S. Hou and Z.G. Gan and H.B. Yang and L. Ma and Z.Y. Zhang and L. Yu and Jian Jiang and K.L. Wang and Y.S. Wang and M.L. Liu and J. Li and Z.H. Li and X. Wang and A.H. Feng and C.J. Lin and L.J. Sun and N.R. Ma and W. Zuo and H.S. Xu and X.H. Zhou and G.Q. Xiao and C. Qi and F.S. Zhang",

note = "{\textcopyright} 2019 The Author(s)",

year = "2020",

month = jan,

day = "20",

doi = "10.1016/j.physletb.2019.135096",

language = "English",

volume = "800",

journal = "Physics Letters B",

issn = "0370-2693",

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Sun, MD, Liu, Z, Huang, TH, Zhang, WQ , Andreyev, AN, Ding, B, Wang, JG, Liu, XY, Lu, HY, Hou, DS, Gan, ZG, Yang, HB, Ma, L, Zhang, ZY, Yu, L, Jiang, J, Wang, KL, Wang, YS, Liu, ML, Li, J, Li, ZH, Wang, X, Feng, AH, Lin, CJ, Sun, LJ, Ma, NR, Zuo, W, Xu, HS, Zhou, XH, Xiao, GQ, Qi, C & Zhang, FS 2020, 'Fine structure in the α decay of 223U', Physics Letters B, vol. 800, 135096. https://doi.org/10.1016/j.physletb.2019.135096

TY - JOUR

T1 - Fine structure in the α decay of 223U

AU - Sun, M.D.

AU - Liu, Z.

AU - Huang, T.H.

AU - Zhang, W.Q.

AU - Andreyev, A.N.

AU - Ding, B.

AU - Wang, J.G.

AU - Liu, X.Y.

AU - Lu, H.Y.

AU - Hou, D.S.

AU - Gan, Z.G.

AU - Yang, H.B.

AU - Ma, L.

AU - Zhang, Z.Y.

AU - Yu, L.

AU - Jiang, Jian

AU - Wang, K.L.

AU - Wang, Y.S.

AU - Liu, M.L.

AU - Li, J.

AU - Li, Z.H.

AU - Wang, X.

AU - Feng, A.H.

AU - Lin, C.J.

AU - Sun, L.J.

AU - Ma, N.R.

AU - Zuo, W.

AU - Xu, H.S.

AU - Zhou, X.H.

AU - Xiao, G.Q.

AU - Qi, C.

AU - Zhang, F.S.

PY - 2020/1/20

Y1 - 2020/1/20

N2 - Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.

AB - Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.

KW - Fine structure

KW - decay

KW - Spin and parity

KW - Reduced -decay width

KW - Quadrupole-octupole deformation

U2 - 10.1016/j.physletb.2019.135096

DO - 10.1016/j.physletb.2019.135096

M3 - Article

SN - 0370-2693

VL - 800

JO - Physics Letters B

JF - Physics Letters B

M1 - 135096

ER -

Fine structure in the α decay of 223U

Abstract

Bibliographical note

Keywords

Access to Document

Projects

Nuclear Physics Consolidated Grant

Nuclear Physics Consolidated Grant

Cite this