M1 and E2 transition rates from core-excited states in semi-magic Ru-94

Ertoprak, Ayşegül; Cederwall, B.; Qi, C.; Doncel, M.; Jakobsson, U.; Nyako, B.; Jaworski, G.; Davies, P.; de France, G.; Kuti, I.; Napoli, D.; Wadsworth, R.; Ghugre, S.; Raut, R.; Akkus, Baki; Al Azri, H.; Algora, A.; de Angelis, G.; Atac, A.; Back, T.; Boso, A.; Clement, E.; Debenham, D.; Dombradi, Zs.; Erturk, S.; Gadea, A.; Moradi, F.; Gottardo, A.; Huyuk, T.; Ideguchi, E.; Li, H.; Michelagnoli, C.; Modamio, V.; Nyberg, J.; Palacz, M.; Petrache, C.; Recchia, F.; Sandzelius, M.; Siciliano, M.; Timar, J.; Valiente-Dobon, J.; Xiao, Z.

doi:10.1140/epja/i2018-12581-7

M1 and E2 transition rates from core-excited states in semi-magic Ru-94

Atıf İçin Kopyala

Ertoprak A., Cederwall B., Qi C., Doncel M., Jakobsson U., Nyako B. M., ...Daha Fazla

EUROPEAN PHYSICAL JOURNAL A, cilt.54, sa.9, 2018 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 54 Sayı: 9
Basım Tarihi: 2018
Doi Numarası: 10.1140/epja/i2018-12581-7
Dergi Adı: EUROPEAN PHYSICAL JOURNAL A
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
İstanbul Üniversitesi Adresli: Evet

Özet

Lifetimes of high-spin states have been measured in the semi-magic (N = 50) nucleus Ru-94. Excited states in Ru-94 were populated in the Ni-58(Ca-40, 4p)Ru-94* fusion-evaporation reaction at the Grand Accelerateur National d'Ions Lourds (GANIL) accelerator complex. DSAM lifetime analysis was performed on the Doppler broadened line shapes in energy spectra obtained from gamma-rays emitted while the residual nuclei were slowing down in a thick 6 mg/cm(2) metallic Ni-58 target. In total eight excited-state lifetimes in the angular momentum range I = (13-20)h have been measured, five of which were determined for the first time. The corresponding B(M1) and B(E2) reduced transition strengths are discussed within the framework of large-scale shell model calculations to study the contribution of different particle-hole configurations, in particular for analyzing contributions from core-excited configurations.