First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart

H. Huang; W. Q. Zhang; A. N. Andreyev; Z. Liu; D. Seweryniak; Z. H. Li; C. Y. Guo; A. E. Barzakh; P. Van Duppen; B. Andel; S. Antalic; M. Block; A. Bronis; M. P. Carpenter; P. Copp; J. G. Cubiss; B. Ding; D. T. Doherty; Z. Favier; F. Giacoppo; T. H. Huang; B. Kindler; F. G. Kondev; T. Lauritsen; J. G. Li; G. S. Li; B. Lommel; H. Y. Lu; M. Al Monthery; P. Mosat; Y. F. Niu; C. Raison; W. Reviol; G. Savard; S. Stolze; G. L. Wilson; H. Y. Wu; Z. H. Wang; F. R. Xu; Q. B. Zeng; X. H. Yu; F. F. Zeng; X. H. Zhou

doi:10.1016/j.physletb.2022.137345

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First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart

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First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart

H. Huang, W. Q. Zhang, A. N. Andreyev, Z. Liu, D. Seweryniak, Z. H. Li, C. Y. Guo, A. E. Barzakh, P. Van Duppen, B. Andel, …

Physics letters. B, Vol.833, 137345

10/10/2022

DOI: https://doi.org/10.1016/j.physletb.2022.137345

Abstract

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Nuclear

Physics, Particles & Fields

Science & Technology

The decay of the 13/2(+) isomeric state in Hg-183 was observed for the first time following the a decay of the 13/2(+) isomer in Pb-187 produced in the Nd-142(Cr-50, 2p3n) reaction. Using alpha - gamma delayed coincidence measurements, the half-life of this isomer was measured to be 290(30) mu s. This isomer is proposed to deexcite by an unobserved low-energy M2 transition to the known 9/2(-) member of a strongly prolate-deformed 7/2(-)[514] band, followed by a 105-keV M1 transition to the bandhead. A lower limit of B(M2) >= 0.018 W.u. was deduced for the unobserved transition. The presumed retardation is proposed to be due to the notable shape change between the initial, nearly spherical, and the final, strongly deformed, states. A similar scenario is also considered for the 13/2(+) isomer in Hg-18(1), suggesting both are cases of shape isomers. The B(M2) systematics of neutron transitions across the nuclear chart is discussed. (C) 2022 The Author(s). Published by Elsevier B.V.

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Title: First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart
Creators: H. Huang - University of Chinese Academy of Sciences
W. Q. Zhang - Institute of Modern Physics
A. N. Andreyev - Japan Atomic Energy Agency
Z. Liu - University of Chinese Academy of Sciences
D. Seweryniak - Argonne National Laboratory
Z. H. Li - Peking University
C. Y. Guo - Peking University
A. E. Barzakh - Petersburg Nuclear Physics Institute
P. Van Duppen - KU Leuven
B. Andel - Comenius University Bratislava
S. Antalic - Comenius University Bratislava
M. Block - Helmholtz Institute Mainz
A. Bronis - Comenius University Bratislava
M. P. Carpenter - Argonne National Laboratory
P. Copp - Argonne National Laboratory
J. G. Cubiss - University of York
B. Ding - Institute of Modern Physics
D. T. Doherty - University of Surrey
Z. Favier - European Organization for Nuclear Research
F. Giacoppo - Helmholtz Institute Mainz
T. H. Huang - Institute of Modern Physics
B. Kindler - Institute of Modern Physics
F. G. Kondev - Helmholtz Institute Mainz
T. Lauritsen - University of Surrey
J. G. Li - Comenius University Bratislava
G. S. Li - Comenius University Bratislava
B. Lommel - Institute of Modern Physics
H. Y. Lu - Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
M. Al Monthery - Argonne National Laboratory
P. Mosat - Helmholtz Institute Mainz
Y. F. Niu - Lanzhou University
C. Raison - Helmholtz Institute Mainz
W. Reviol - Argonne National Laboratory
G. Savard - Helmholtz Institute Mainz
S. Stolze - University of York
G. L. Wilson - Louisiana State University
H. Y. Wu - Peking University
Z. H. Wang - Peking University
F. R. Xu - Peking University
Q. B. Zeng - Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
X. H. Yu - Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
F. F. Zeng - Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
X. H. Zhou - Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Publication Details: Physics letters. B, Vol.833, 137345
Publisher: Elsevier
Number of pages: 8
Publication Date: 10/10/2022
Grant note: 12135004; 11635003; 11961141004; 11735017 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 2020VMA0017 / Chinese Academy of Sciences President's International Fellowship Initiative DE-AC02-06CH11357; DE-FG02- 94ER41041; DE-FG02-97ER41033 / U.S. Department of Energy, Office of Nuclear Physics; United States Department of Energy (DOE) XDB34000000 / Strategic Priority Research Program of Chinese Academy of Sciences; Chinese Academy of Sciences APVV-18-0268 / Slovak Research and Development Agency 1/0651/21 / Slovak Grant Agency VEGA; Vedecka grantova agentura MSVVaS SR a SAV (VEGA) 2018YFA0404402 / National Key R&D Program of China
Identifiers: 99822521502346; WOS:000865640700018
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart

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