New type of chiral motion in even-even nuclei: the 138 Nd case

作者: A A Raduta , Al H Raduta , C M Petrache

DOI: 10.1088/0954-3899/43/9/095107

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摘要: The phenomenological generalized coherent state model Hamiltonian is amended with a many body term describing set of nucleons moving in shell mean-field and interacting among themselves pairing, as well particle–core interaction spin–spin type. treated restricted space consisting the core projected states associated to band ground, $\beta ,\gamma ,\widetilde{\gamma },{1}^{+}$ $\widetilde{{1}^{+}}$ two proton aligned quasiparticles coupled collective dipole band. chirally transformed are also included. contains terms which not invariant chiral transformations relating right-handed frame $({{\bf{J}}}_{{\bf{F}}},{{\bf{J}}}_{{\bf{p}}},{{\bf{J}}}_{{\bf{n}}})$ left-handed ones $(-{{\bf{J}}}_{{\bf{F}}},{{\bf{J}}}_{{\bf{p}}},{{\bf{J}}}_{{\bf{n}}})$, $({{\bf{J}}}_{{\bf{F}}},-{{\bf{J}}}_{{\bf{p}}},{{\bf{J}}}_{{\bf{n}}})$, $({{\bf{J}}}_{{\bf{F}}},{{\bf{J}}}_{{\bf{p}}},-{{\bf{J}}}_{{\bf{n}}})$ where ${{\bf{J}}}_{{\bf{F}}},{{\bf{J}}}_{{\bf{p}}},{{\bf{J}}}_{{\bf{n}}}$ angular momenta carried by fermions, neutron bosons, respectively. energies defined form four bands, them being degenerate present formalism, while other exhibit properties reflected energies, electromagnetic energy staggering function. A numerical application for (138)Nd shows good agreement between results corresponding experimental data.

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