Excited states in the proton-unbound nuclide Ta-158

Carroll, R.; Page, R.; Joss, D.; O'Donnell, D.; Uusitalo, J.; Darby, I.; Andgren, K.; Auranen, K.; Boenig, S.; Cederwal, B.; Doncel, M.; Drummond, M.; Eeckhaudt, S.; Grahn, T.; Gray-Jones, C.; Greenlees, P.; Hadinia, B.; Herzan, A.; Jakobsson, U.; Jones, P.; Julin, R.; Juutinen, S.; Konki, J.; Kroell, T.; Leino, M.; Leppanen, A.; McPeake, C.; Nyman, M.; Pakarinen, J.; Partanen, J.; Peura, P.; Rahkila, P.; Revill, J.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Saygi, BAHADIR; Scholey, C.; Seweryniak, D.; Simpson, J.; Sorri, J.; Stolze, S.; Taylor, M.; Thornthwaite, A.

doi:10.1103/physrevc.93.034307

Excited states in the proton-unbound nuclide Ta-158

Atıf İçin Kopyala

Carroll R. J., Page R. D., Joss D. T., O'Donnell D., Uusitalo J., Darby I. G., ...Daha Fazla

PHYSICAL REVIEW C, cilt.93, sa.3, 2016 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 93 Sayı: 3
Basım Tarihi: 2016
Doi Numarası: 10.1103/physrevc.93.034307
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Ankara Üniversitesi Adresli: Hayır

Özet

Excited states in the neutron-deficient odd-odd proton-unbound nuclide Ta-158 have been investigated in two separate experiments. In the first experiment, Ir-166 nuclei were produced in the reactions of 380 MeV Kr-78 ions with an isotopically enriched Mo-92 target. The alpha-decay chain of the 9(+) state in Ir-166 was analyzed. Fine structure in the a decay of the 9(+) state in Re-162 established a 66 keV difference in excitation energy between the lowest-lying 9(+) and 10(+) states in Ta-158. Higher-lying states in Ta-158 were populated in the reactions of 255 MeV Ni-58 ions with an isotopically enriched Pd-102 target. Gamma-ray decay paths that populate, depopulate, and bypass a 19(-) isomeric state have been identified. The general features of the deduced level scheme are discussed and the prospects for observing proton emission branches from excited states are considered.