Lifetime measurements of excited states in W-162 and W-164 and the evolution of collectivity in rare-earth nuclei

Doncel, M.; Cederwall, B.; Qi, C.; Li, H.; Jakobsson, U.; Auranen, K.; Boenig, S.; Drummond, M.; Grahn, T.; Greenlees, P.; Herzan, A.; Joss, D.; Julin, R.; Juutinen, S.; Konki, J.; Kroell, T.; Leino, M.; McPeake, C.; O'Donnell, D.; Page, R.; Pakarinen, J.; Partanen, J.; Peura, P.; Rahkila, P.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Saygi, BAHADIR; Scholey, C.; Sorri, J.; Stolze, S.; Taylor, M.; Thornthwaite, A.; Uusitalo, J.

doi:10.1103/physrevc.95.044321

Lifetime measurements of excited states in W-162 and W-164 and the evolution of collectivity in rare-earth nuclei

Atıf İçin Kopyala

Doncel M., Cederwall B., Qi C., Li H., Jakobsson U., Auranen K., ...Daha Fazla

PHYSICAL REVIEW C, cilt.95, sa.4, 2017 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 95 Sayı: 4
Basım Tarihi: 2017
Doi Numarası: 10.1103/physrevc.95.044321
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Ankara Üniversitesi Adresli: Hayır

Özet

Lifetimes of the first excited 2(+) states in the extremely neutron- deficient W-162 and W-164 nuclei have been measured using the recoil distance Doppler shift technique. Experimental B(E2) data for the isotopic chains of hafnium, tungsten, and osmium, from the midshell region near the beta-stability line towards the N = 82 closed shell and the most neutron-deficient nuclides, are compared with predictions of nuclear deformations and 2(1)(+) -> 0(g.s)(.+) reduced transition strengths from different classes of state-of-the-art theoretical model calculations. The results reveal striking differences and deficiencies in the predictive power of current nuclear structure models.