Reduced transition probabilities along the yrast line in W-166

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Saygi B. , Joss D. T. , Page R. D. , Grahn T., Simpson J., O'Donnell D., ...Daha Fazla

PHYSICAL REVIEW C, cilt.96, 2017 (SCI İndekslerine Giren Dergi) identifier identifier


Lifetimes of excited states in the yrast band of the neutron-deficient nuclide W-166 have been measured utilizing the DPUNS plunger device at the target position of the JUROGAM II gamma-ray spectrometer in conjunction with the RITU gas-filled separator and the GREAT focal-plane spectrometer. Excited states in W-166 were populated in the Mo-92(Kr-78, 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 (B-4/2 = 1.43).