Excited states and reduced transition probabilities in Os-168

Grahn, T.; Stolze, S.; Joss, D.; Page, R.; Saygi, BAHADIR; O'Donnell, D.; Akmali, M.; Andgren, K.; Bianco, L.; Cullen, D.; Dewald, A.; Greenlees, P.; Heyde, K.; Iwasaki, H.; Jakobsson, U.; Jones, P.; Judson, D.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Lumley, N.; Mason, P.; Moeller, O.; Nomura, K.; Nyman, M.; Petts, A.; Peura, P.; Pietralla, N.; Pissulla, Th.; Rahkila, P.; Sapple, P.; Saren, J.; Scholey, C.; Simpson, J.; Sorri, J.; Stevenson, P.; Uusitalo, J.; Watkins, H.; Wood, J.

doi:10.1103/physrevc.94.044327

Excited states and reduced transition probabilities in Os-168

Atıf İçin Kopyala

Grahn T., Stolze S., Joss D. T., Page R. D., Saygi B., O'Donnell D., ...Daha Fazla

PHYSICAL REVIEW C, cilt.94, sa.4, 2016 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 94 Sayı: 4
Basım Tarihi: 2016
Doi Numarası: 10.1103/physrevc.94.044327
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Ankara Üniversitesi Adresli: Hayır

Özet

The level scheme of the neutron-deficient nuclide Os-168 has been extended and mean lifetimes of excited states have been measured by the recoil distance Doppler-shift method using the JUROGAM gamma-ray spectrometer in conjunction with the IKP Koln plunger device. The 168Os. rays were measured in delayed coincidence with recoiling fusion-evaporation residues detected at the focal plane of the RITU gas-filled separator. The ratio of reduced transition probabilities B(E2; 4(1)(+)-> 2(1)(+))/B(E2; 2(1)(+)-> 0(1)(+)) is measured to be 0.34(18), which is very unusual for collective band structures and cannot be reproduced by interacting boson model (IBM-2) calculations based on the SkM* energy-density functional.