- AMER PHYSICAL SOC
This study investigated intermediate-spin states of Zr-92 via the inverse reaction Be-9(Kr-86, 3n)Zr-92. Seven transitions were newly observed, and a lifetime was extracted for the 10(1)(+) state by analysis of Doppler-broadened line shapes of decay. rays. A large B(E2) valuewas obtained for the transition from 10(1)(+) to 8(1)(+), and the magnitude was comparable to that for the deformed excited configurations in Zr-94 that have recently been established. A possible origin for such collectivity is discussed qualitatively based on a phenomenological deformed rotor model. Moreover, a multipletlike structure that fits into the systematics for N = 52 even-A isotones is revealed for the negative-parity yrast states.
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