Level structure in the transitional nucleus Fr 215

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F22%3A00373726" target="_blank" >RIV/68407700:21670/22:00373726 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.105.034307" target="_blank" >https://doi.org/10.1103/PhysRevC.105.034307</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.105.034307" target="_blank" >10.1103/PhysRevC.105.034307</a>

Result language
angličtina
Original language name
Level structure in the transitional nucleus Fr 215
Original language description
The level scheme of Fr215 is extended up to 55/2 ℏ and 4.8 MeV excitation energy with the addition of 52 new γ-ray transitions. Previously established isomers and their half-lives, except for the 47/2+ state, are revisited. The discrepancy in the half-life of the 39/2- state is resolved, and its half-life is revised to 11.4(14) ns. An overall good agreement is observed between the experimental results and the shell-model calculations performed using the CD-Bonn NN interaction derived from the Vlow-k renormalization approach. A weak coupling of the odd proton to the even-even core is observed to account for the level structure at lower energies, which strongly resembles a decoupled nonrotational band. A new positive-parity sequence is also established which is observed to originate from the coupling of the i13/2 proton at low excitation energy.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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