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Seniority inverted yrast states observed in 69 153 Tm84 |
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| Authors: | C T Zhang P Kleinheinz M Piiparinen R Collatz T Lönnroth G Sletten J Blomqvist |
| Institution: | 1. Institut für Kernphysik, Forschungszentrum Jülich, D-52425, Jülich, Germany 2. The Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark 3. Physics Department Frescati, Royal Institute of Technology, S-10405, Stockholm, Sweden |
| Abstract: | Through an in-beam study of the 69 153 Tm84 nucleus we have identified the πh 11 2/5 /2νf 7 2/2 and πh 11 2/5 νf7/2h9/2 7-valence particle configurations up to their fully aligned spins of 47/2? and 51/2?. Shell model calculations predict that in the πh 11 2/5 νf7/2h9/2 configuration, contrary to the π 11 2/5 νf 7 2/2 case, the h11/2 proton seniority does not increase regularly with spin. This seniority inversion is verified by the data. |
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