A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Evidence for octupole collectivity in 172Pt (2020)
Ertoprak, A., Cederwall, B., Qi, C., Aktas, Ö., Doncel, M., Hadinia, B., Liotta, R., Sandzelius, M., Scholey, C., Andgren, K., Bäck, T., Badran, H., Braunroth, T., Calverley, T., Cox, D. M., Cullen, D. M., Fang, Y. D., Ganioğlu, E., Giles, M., . . . Wyss, R. (2020). Evidence for octupole collectivity in 172Pt. European Physical Journal A, 56(2), Article 65. https://doi.org/10.1140/epja/s10050-020-00071-6
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Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Ertoprak, A.; Cederwall, B.; Qi, C.; Aktas, Ö.; Doncel, M.; Hadinia, B.; Liotta, R.; Sandzelius, M.; Scholey, C.; Andgren, K.; et al.
Lehti tai sarja: European Physical Journal A
ISSN: 1434-6001
eISSN: 1434-601X
Julkaisuvuosi: 2020
Volyymi: 56
Lehden numero: 2
Artikkelinumero: 65
Kustantaja: Springer
Julkaisumaa: Saksa
Julkaisun kieli: englanti
DOI: https://doi.org/10.1140/epja/s10050-020-00071-6
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/67909
Tiivistelmä
Excited states in the extremely neutron-deficient nucleus 172Pt were populated via 96Ru(78Kr, 2p) and 92Mo(83Kr, 3n) reactions. The level scheme has been extended up to an excitation energy of ≈ 5 MeV and tentative spin-parity assignments up to I π = 18+. Linear polarization and angular distribution measurements were used to determine the electromagnetic E1 character of the dipole transitions connecting the positive-parity ground-state band with an excited side-band, firmly establishing it as a negativeparity band. The lowest member of this negative-parity structure was firmly assigned spin-parity 3−. In addition, we observed an E3 transition from this 3− state to the ground state, providing direct evidence for octupole collectivity in 172Pt. Large-scale shell model (LSSM) and total Routhian surface (TRS) calculations have been performed, supporting the interpretation of the 3− state as a collective octupolevibrational state.
YSO-asiasanat: ydinfysiikka
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2020
JUFO-taso: 1
