Particle-rotor model for doubly odd transitional nuclei of the Tl-region |
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Authors: | A. J. Kreiner |
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Affiliation: | 1. Fachbereich Physik der Technischen Universit?t München, Garching, Fed. Rep. Germany
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Abstract: | A model has been investigated describing a situation in which two noninteracting high-j Nilsson-BCS quasiparticles move in the deformed field of an axially and reflection symmetric rotor. According to the positions of thej-shells with respect to the proton and neutron Fermi surfaces structures of different character emerge referred to as semi- and doubly-decoupled. In particular, strongly Coriolis-distorted bands recently reported in doubly odd Tl nuclei are discussed. Also (tilde pi h_{9/2} ) bands in neighbouring odd mass Tl isotopes are analysed on the same footing. It is shown that the pronounced odd even staggering of the transition energies can be understood as a specific quantal feature associated with the Coriolis interaction. |
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