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Structure of low-lying levels in220Ac |
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| Authors: | C. F. Liang P. Paris A. Plochocki E. Ruchowska A. Gizon D. Barnéoud J. Genevey G. Cãta R. K. Sheline |
| Affiliation: | 1. CSNSM, IN2P3-CNRS, Bat. 104, F-91405, Campus Orsay, France 2. IEP, University of Warsaw, PL-00-681, Warsaw, Poland 4. ISN, IN2P3-CNRS, Université Joseph Fourier, F-38026, Grenoble, France 5. Institute of Atomic Physics, P.O. Box MG-6, Bucharest, Romania 6. Florida State University, 33206, Tallahassee, FL, USA |
| Abstract: | The low-lying level structure of the odd-odd nucleus220Ac has been observed for the first time following the alpha decay of 0.8 s224Pa produced by the reaction209Bi (18O, 3n). Alpha-gamma and alpha-electron coincidence measurements were used in the construction of the220Ac level scheme. Opposite parity states with energy splittings similar to those in the recent high-spin nuclear study were observed. However, no levels or gamma transitions were observed in common with those of the high-spin work. |
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