Reexamination of theN=90transitional nuclei150Ndand

Evolution of nuclear shapes in medium mass isotopes from a microscopic perspective

“…7 for the energy plotted as a function of γ for different choices of Q 0 . The plots presented for these two sets of isotopes are rather similar to the ones already discussed for the Pd case and from them we can conclude that the Xe and Ba isotopes studied can be Next, we consider several rare-earth isotopic chains (like Nd, Sm, Gd, and Dy) where candidates exhibiting X(5) behavior have been identified [11,12,[30][31][32][33]. The nuclei considered can always be grouped in isotones (same number of neutrons) and it turns out that the PECs for all the members of an isotonic chain are very similar.…”

E(5) and X(5) shape phase transitions within a Skyrme-Hartree-Fock + BCS approach

“…Other candidates have also been suggested with further work (see, for example, Refs. [32][33][34]). Figure 8 shows the results for 142−156 Nd isotopes (Z = 60).…”

N=90region: The decays ofEu152Kulp1, Wood2, Allmond3 et al. 2007Phys. Rev. C410230View full textAdd to dashboardCite

“…Recent perspectives of the theory in this region [6,7,35] have focused primarily on the latest calculations of excitation energies and B(E2) values. Burke [6] specifically addresses the interpretation [1][2][3][4] of coexisting rotational and vibrational phases in 152 Sm, points out that such an interpretation does not explain one-and two-nucleon transfer data for excited states in 152 Sm, and establishes figures of merit to quantitatively compare theories.…”

“…Burke [6] specifically addresses the interpretation [1][2][3][4] of coexisting rotational and vibrational phases in 152 Sm, points out that such an interpretation does not explain one-and two-nucleon transfer data for excited states in 152 Sm, and establishes figures of merit to quantitatively compare theories. Clark et al [7] also compare theory with experiment and include calculations from the X(5) model [36]. Caprio [35] investigates the assumed separation of β and γ degrees of freedom in the X(5) model and finds that these degrees of freedom are strongly coupled and cannot be treated as separable.…”

“…Additional data from subsequent studies were presented [4,5] to support these interpretations. However, there has been controversy [6][7][8][9] regarding these ideas.…”