Decay of a microsecond seniority 3 isomeric state in <SUP>155</SUP>Hf

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.; Forsberg, U.; Grahn, T.; Greenlees, P.T.; Hilton, J.B.; Illana, A.; Joukainen, H.; Judson, D.S.; Julin, R.; Jutila, H.; Keatings, J.M.; Labiche, M.; Leino, M.; Lewis, M.C.; Louko, J.; Luoma, M.; Martel, I.; McCarter, A.; McKee, P.P.; Mosat, P.; Nathaniel, S.N.; Neuvonen, O.; O'Donnell, D.; Ojala, J.; Page, C.A.A.; Plaza, A.M.; Pakarinen, J.; Papadakis, P.; Parr, E.; Partanen, J.; Rahkila, P.; Romero, J.; Ruotsalainen, P.; Sandzelius, M.; Sarén, J.; Saygi, BAHADIR; Smallcombe, J.; Smith, J.F.; Sorri, J.; Sullivan, C.M.; Szwec, S.; Tann, H.; Tolosa-Delgado, A.; Uusikylä, E.; Venhart, M.; Waring, L.J.; Zimba, G.

doi:10.1103/physrevc.110.034303

Decay of a microsecond seniority 3 isomeric state in <SUP>155</SUP>Hf

Atıf İçin Kopyala

Alayed B., Page R., Joss D., Uusitalo J., Qi C., Briscoe A., ...Daha Fazla

PHYSICAL REVIEW C, cilt.110, sa.3, 2024 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 110 Sayı: 3
Basım Tarihi: 2024
Doi Numarası: 10.1103/physrevc.110.034303
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, INSPEC
Ankara Üniversitesi Adresli: Evet

Özet

Excited states in the neutron-deficient nuclide Hf-155 have been investigated in experiments performed at the Accelerator Laboratory of the University of Jyvaskyla. The Hf-155 nuclei were produced in fusion-evaporation reactions induced by beams of 295 and 315 MeV Ni-58 ions bombarding an isotopically enriched Pd-102 target and separated using the recoil mass separator MARA. An isomeric state having a half-life of 510(30) ns was discovered and is interpreted as a seniority nu = 3, (pi h(11/2)(2) circle times nu f(7/2))27/2(-) configuration. The gamma-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(E2) 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(E2) value are compared with systematics and shell-model calculations.