Low-energy rotational bands in the nucleus155Eu |
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Authors: | R Katajanheimo H Liljavirta A Siivola E Hammarén E Liukkonen |
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Institution: | 1. Department of Physics, University of Helsinki, Finland 2. Department of Physics, University of Jyv?skyl?, Finland
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Abstract: | Excited states in the nucleus155Eu have been produced during in-beam bombardments of a154Sm target with3He beams at 22 and 27 MeV. Decay gamma rays were detected using coincidence equipment optimized for low-energy photons. The level scheme is based on the observedγγ-coincidence relationships combined with the information on relative intensities. Tentatively suggested spin assignments follow from the apparent rotational character of the nucleus. Experimental observations are compared with predictions calculated from a particle-rotor model with a nonspheroidal Woods-Saxon potential. |
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