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Multi-quasiparticle rotational bands in neutron-rich erbium isotopes

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Abstract

Multi-quasiparticle states and rotational bands in neutron-rich erbium isotopes have been investigated by the configurationconstrained pairing-deformation-frequency self-consistent total-Routhian-surface (TRS) method with particle-number-conserved pairing. Specifically, the recently observed K fy = 4− bands in 168,170,172Er have been found to experience a configuration change in our calculation. Some other multi-quasiparticle states with uncertain configuration assignments have been reinvestigated by calculating their collective rotations. The configuration-constrained TRS calculation can reproduce experimental data consistently.

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Authors and Affiliations

  1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China

    XiMing Fu, ChangFeng Jiao, FuRong Xu & ZhenHua Zhang

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  1. XiMing Fu
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  2. ChangFeng Jiao
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  3. FuRong Xu
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  4. ZhenHua Zhang
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Correspondence to FuRong Xu.

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Fu, X., Jiao, C., Xu, F. et al. Multi-quasiparticle rotational bands in neutron-rich erbium isotopes. Sci. China Phys. Mech. Astron. 56, 1423–1427 (2013). https://doi.org/10.1007/s11433-013-5165-7

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  • DOI: https://doi.org/10.1007/s11433-013-5165-7

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