Reduced transition probabilities along the yrast line in 166W

B. Sayğı, D.T. Joss, R.D. Page, T. Grahn, J. Simpson, D. O'Donnell, G. A. Alharshan, K. Auranen, T. Bäck, S. Boening, Th. Braunroth, R.J. Carroll, B. Cederwall, D. M. Cullen, A. Dewald, M. Doncel, L. Donosa, M.C. Drummond, F. Ertuğral, S. ErtürkCh. Fransen, P.T. Greenlees, M. Hackstein, K. Hauschild, A. Herzan, U. Jakobsson, P.M. Jones, R. Julin, S. Juutinen, J. Konki, T. Kröll, M. Labiche, A. Lopez-Martens, C. G. McPeake, F. Moradi, O. Möller, M. Mustafa, P. Nieminen, J. Pakarinen, J. Partanen, P. Peura, M. Procter, P. Rahkila, W. Rother, P. Ruotsalainen, M. Sandzelius, J. Sarén, C. Scholey, J. Sorri, S. Stolze, M. J. Taylor, A. Thornthwaite, J. Uusitalo

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Lifetimes of excited states in the yrast band of the neutron-deficient nuclide
166W have been measured utilizing the DPUNS plunger device at the target position of the JUROGAM II γ-ray spectrometer in conjunction with the RITU gas-filled separator and the GREAT focal-plane spectrometer. Excited states in
166W were populated in the 92Mo(78Kr,4p) reaction at a bombarding energy of 380 MeV. The measurements reveal a low value for the ratio of reduced transitions probabilities for the lowest-lying transitions B(E2;4+→2+)/B(E2;2+→0+)=0.33(5), compared with the expected ratio for an axially deformed rotor (B4/2 = 1.43).
Original languageEnglish
Article number021301
JournalPhysical Review C
Issue number2
Publication statusPublished - 2 Aug 2017


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