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Shape coexistence in 66Se
- Title
- Shape coexistence in 66Se
- Authors
- Elekes Z.; Panin V.; Rodríguez T.R.; Sieja K.; Ahn D.S.; Al-Adili A.; Baba H.; Stefanescu A.I.; Cook K.J.; Dósa C.; Fukuda N.; Gao J.; Gibelin J.; Hahn K.I.; Halász Z.; Huang S.W.; Isobe T.; Juhász M.M.; Kim D.; Kobayashi T.; Kondo Y.; Korkulu Z.; Kurihara A.; Kuti I.; Miki H.; Miki K.; Motobayashi T.; Otsu H.; Saastamoinen A.; Sasano M.; Sato H.; Shimada T.; Shimizu Y.; Sobotka L.G.; Stefanescu I.; Stuhl L.; Suzuki H.; Takeda H.; Togano Y.; Tomai T.; Trache L.; Tudor D.; Uesaka T.; Utsuki Y.; Wang H.; Yasuda A.; Yoneda K.; Yoshitome Y.
- Ewha Authors
- 한인식
- SCOPUS Author ID
- 한인식
- Issue Date
- 2023
- Journal Title
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- ISSN
- 3702-2693
- Citation
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics vol. 844
- Keywords
- Neutron knock-out reaction; Nuclear structure; Shape coexistence; γ-ray spectroscopy
- Publisher
- Elsevier B.V.
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The nuclear structure of 66Se, nucleus beyond the N=Z line on the proton-rich side of the valley of stability, was investigated by the neutron knock-out reaction 67Se(12C,X)66Se using a 12C target. The analysis of the singles spectrum of the γ-rays emitted during the de-excitation of the populated low-lying excited states revealed two previously detected (927(4) keV, 1460(32) keV) and three new (744(6) keV, 1210(17) keV, 1661(23) keV) transitions. The 744-keV, the 1210-keV, and the 1460-keV transitions were found to be in coincidence with the one at 927 keV. The spectrum coincident with the 927-keV transition showed a further possible transition at 299(35) keV, which was obscured by significant atomic background in the singles spectrum. This transition might correspond to a peak previously reported at 273(5) keV that could not be assigned to 66Se unambiguously. Based on a comparison of the experimental data to theoretical calculations, four new excited states are proposed which suggest that 66Se exhibits shape coexistence. © 2023 The Author(s)
- DOI
- 10.1016/j.physletb.2023.138072
- Appears in Collections:
- 사범대학 > 과학교육과 > Journal papers
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