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Laboratory versus intrinsic description of nonaxial nuclei above doubly magic 78Ni

Abstract : We study the development of collectivity in neutron rich nuclei in the close vicinity of 78Ni. We report on the large scale shell model calculations in the N=52-54 even-even nuclei with Z=30-36. We predict maximum of triaxiality in 86Ge and explain this phenomenon on the basis of a pseudo-SU(3) symmetry interpretation. For the cases where signs for nonaxial shapes appear, we perform the triaxial Gogny calculations with particle number and angular momentum projections. The comparison of results obtained in the laboratory and intrinsic frames provides a comprehensive and complete picture of nuclear deformation in this region.
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http://hal.in2p3.fr/in2p3-00934219
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Submitted on : Tuesday, January 21, 2014 - 4:32:23 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:56 PM

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K. Sieja, T. R. Rodríguez, K. Kolos, D. Verney. Laboratory versus intrinsic description of nonaxial nuclei above doubly magic 78Ni. Physical Review C, American Physical Society, 2013, 88, pp.034327. ⟨10.1103/PhysRevC.88.034327⟩. ⟨in2p3-00934219⟩

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