A1 Journal article (refereed)
Decay of a microsecond seniority 3 isomeric state in 155Hf (2024)


Alayed, B., Page, R. D., Joss, D. T., Uusitalo, J., Qi, C., Briscoe, A. D., AlAqeel, M.A. M., Andel, B., Antalic, S., Auranen, K., Ayatollahzadeh, H., Badran, H., Barber, L., Beeton, G., Birova, M., Bogdanoff, V., Cubiss J., G., Cullen, D. M., Deary, J., . . . Zimba, G. (2024). Decay of a microsecond seniority 3 isomeric state in 155Hf. Physical Review C, 110(3), Article 034303. https://doi.org/10.1103/physrevc.110.034303


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Publication details

All authors or editorsAlayed, B.; Page, R. D.; Joss, D. T.; Uusitalo, J.; Qi, C.; Briscoe, A. D.; AlAqeel, M. A. M.; Andel, B.; Antalic, S.; Auranen, K.; et al.

Journal or seriesPhysical Review C

ISSN2469-9985

eISSN2469-9993

Publication year2024

Publication date03/09/2024

Volume110

Issue number3

Article number034303

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1103/physrevc.110.034303

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/96998


Abstract

Excited states in the neutron-deficient nuclide 155 Hf have been investigated in experiments performed at the Accelerator Laboratory of the University of Jyväskylä. The 155 Hf nuclei were produced in fusion-evaporation reactions induced by beams of 295 and 315 MeV 58 Ni ions bombarding an isotopically enriched 102 Pd target and separated using the recoil mass separator MARA. An isomeric state having a half-life of 510(30) ns was discoveredand is interpreted as a seniority 𝜐=3, (𝜋⁢ℎ211/2⊗𝜈⁢𝑓7/2)⁢27/2− configuration. The 𝛾-ray transitions emitted in the deexcitation of the isomeric state to the ground state were identified and a level scheme was constructed, from which the excitation energy of the isomer was determined to be 2581.5(10) keV. A 𝐵⁡(𝐸⁢2) value of 0.45(3) W.u. was deduced for the 105.4 keV transition depopulating the isomeric state. The deduced level scheme and 𝐵⁡(𝐸⁢2) value are compared with systematics and shell-model calculations.


Keywordsnuclear physics


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Ministry reportingYes

VIRTA submission year2024

Preliminary JUFO rating2


Last updated on 2024-14-10 at 15:07