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Author  |
Zhang, G. et al; Algora, A.; Nacher, E.; Orrigo, S.E.A.; Perez-Vidal, R.M.; Rubio, B. |
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Title |
Approaching 100Sn: Structural evolution in 98,100Cd via lifetime measurements |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physics Letters B |
Abbreviated Journal |
Phys. Lett. B |
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Volume |
863 |
Issue |
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Pages |
139378 - 7pp |
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Keywords |
Nuclear structure; Lifetime measurement; Gamma-ray spectroscopy; Radioactive beams |
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Abstract |
The lifetimes of low-lying excited states below the 8(+) seniority isomer were directly measured using fast timing detectors in the neutron-deficient isotopes Cd-98,Cd-100. This experiment was conducted with the DEcay SPECtroscopy (DESPEC) setup at GSI, where the ions of interest were produced via a fragmentation reaction and identified using the FRagment Separator (FRS) before being implanted in the AIDA active stopper system, and the gamma rays emitted during the de-excitation of isomeric states were detected by the LaBr3 FATIMA Array. The newly deduced values for the reduced transition probabilities were compared with shell-model calculations using different interactions and effective charges. The results indicate that, while Cd-98 aligns well with a seniority scheme description, in Cd-100 the transition strengths among low-lying states are not fully reproduced, and the nature of these states remains an open problem within the present theoretical description. Ultimately, a key element in the description of this region, crucial for nuclear physics and astrophysics, appears to be the proton-neutron term of the nuclear effective interaction. |
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Address |
[Zhang, G.] Sun Yat Sen Univ, Sinofrench Inst Nucl Engn & Technol, Zhuhai 519082, Guangdong, Peoples R China, Email: daniele.mengoni@unipd.it |
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Publisher |
Elsevier |
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Language |
English |
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Original Title |
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Series Title |
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Series Volume |
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Edition |
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ISSN |
0370-2693 |
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Notes |
WOS:001458687900001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6643 |
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