Shape evolution in the neutron-rich tungsten region

Shape evolution in the neutron-rich tungsten region

Recent experimental data on the low-lying states in W190 show a change in the E(41+)/E(21+) behavior compared to less neutron-rich neigbors. Self-consistent axially-deformed Hartree-Fock calculations, using a separable monopole interaction, of nuclei in the vicinity of W190 are performed to systemat...

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Κύριοι συγγραφείς: Stevenson, P, Brine, M, Podolyak, Z, Regan, P, Walker, P, Stone, JR
Μορφή: Journal article
Γλώσσα:English
Έκδοση: 2005
Περιγραφή
Περίληψη:Recent experimental data on the low-lying states in W190 show a change in the E(41+)/E(21+) behavior compared to less neutron-rich neigbors. Self-consistent axially-deformed Hartree-Fock calculations, using a separable monopole interaction, of nuclei in the vicinity of W190 are performed to systematically examine the evolution of ground state quadrupole deformations. It is found that the neutron number N=116 causes a coexistence of oblate and prolate shapes, with a weak dependence on proton number, thereby hindering the development of these isotones as well-deformed rotors. © 2005 The American Physical Society.

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