| First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart | |
| 2022-10-10 | |
| Source Publication | PHYSICS LETTERS B
 |
| ISSN | 0370-2693 |
| Volume | 833 |
| Abstract | 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. |
| Keyword | Isomeric decay Shape isomer B(M2) |
| Publisher | ELSEVIER |
| DOI | 10.1016/j.physletb.2022.137345 |
| Indexed By | SCIE |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| WOS ID | WOS:000865640700018 |
| Original Document Type | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/489022 |
| Collection | 兰州大学 |
| Affiliation | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England; 4.Japan Atom Energy Agcy, Adv Sci Res Ctr ASRC, Tokai, Ibaraki, Japan; 5.Argonne Natl Lab, Phys Div, Argonne, IL 60439 USA; 6.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; 7.Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England; 8.NRC Kurchatov Inst, Petersburg Nucl Phys Inst, Gatchina 188300, Russia; 9.Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Leuven, Belgium; 10.Comenius Univ, Dept Nucl Phys & Biophys, Bratislava 84248, Slovakia; 11.Helmholtz Inst Mainz, D-55128 Mainz, Germany; 12.GSI Helmholtzzentrum Schwerionenforsch Darmstadt, D-64291 Darmstadt, Germany; 13.Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany; 14.Phys Dept, CERN, CH-121123 Geneva, Switzerland; 15.Lanzhou Univ, Lanzhou 730000, Peoples R China; 16.Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA |
| First Author Affilication | School of Nuclear Science and Technology |
| Recommended Citation GB/T 7714 | Huang, H.,Zhang, W. Q.,Andreyev, A. N.,et al. First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart[J]. PHYSICS LETTERS B,2022,833. |
| APA | Huang, H..,Zhang, W. Q..,Andreyev, A. N..,Liu, Z..,Seweryniak, D..,...&Zhou, X. H..(2022).First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart.PHYSICS LETTERS B,833. |
| MLA | Huang, H.,et al."First observation of the decay of the 13/2(+) isomer in Hg-183 and B (M2) systematics of neutron transitions across the nuclear chart".PHYSICS LETTERS B 833(2022). |
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