| Autor: |
Althubiti, N. A., Atanasov, D., Blaum, K., Cocolios, T. E., Goodacre, T. Day, Farooq-Smith, G. J., Fedorov, D. V., Fedosseev, V. N., George, S., Herfurth, F., Heyde, K., Kreim, S., Lunney, D., Lynch, K. M., Manea, V., Marsh, B. A., Neidherr, D., Rosenbusch, M., Rossel, R. E., Rothe, S., Schweikhard, L., Seliverstov, M. D., Welker, A., Wienholtz, F., Wolf, R. N., Zuber, K. |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. C 96, 044325 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevC.96.044325 |
| Popis: |
Direct mass measurements of the low-spin $3/2^{(-)}$ and high-spin $13/2^{(+)}$ states in the neutron-deficient isotopes $^{195}$Po, $^{197}$Po, and high-spin $13/2^{(+)}$ state in $^{199}$Po were performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE-CERN. These measurements allow the determination of the excitation energy of the isomeric state arising from the $\nu$i$_{13/2}$ orbital in $^{195,197}$Po. Additionally, the excitation energy of isomeric states of lead, radon, and radium isotopes in this region were obtained from $\alpha$-decay chains. The new excitation energies complete the knowledge of the energy systematics in the region and confirm for the first time that the $13/2^{(+)}$ states remain isomeric, independent of the number of valence neutrons. |
| Databáze: |
arXiv |
| Externí odkaz: |
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