The interacting boson model for anomalous rotational bands is proposed. In the rotational SU(3) limit,an asymptotic limit is discussed. Within the framework of the model several analytic relations for energies and ele...The interacting boson model for anomalous rotational bands is proposed. In the rotational SU(3) limit,an asymptotic limit is discussed. Within the framework of the model several analytic relations for energies and electro-magnetic transition rates are derived.展开更多
Within the framework of the U<SUB>sdpf</SUB>(16) interacting boson model (IBM), the effects of strong correlations of the dipole (p<SUP>?</SUP>-boson) and the octupole (f<SUP>?</SUP>...Within the framework of the U<SUB>sdpf</SUB>(16) interacting boson model (IBM), the effects of strong correlations of the dipole (p<SUP>?</SUP>-boson) and the octupole (f<SUP>?</SUP>-boson) degree of freedom on the positive-parity states of even-even nuclei in SU(3) limit are discussed. It is shown that configurations of an even number of many p- and f-bosons can not only be incorporated into the usual low-lying collective rotational bands, such as the ground state band, β- and γ-vibrational bands, but also naturally form the rotational bands, etc. These results are similar to that of U<SUB>sdg</SUB>(15)-IBM and in good agreement with the experimental data of the nucleus. Besides, several intraband E2 transition probabilities are given, which are consistent with that of U<SUB>sd</SUB>(6)-IBM.展开更多
文摘The interacting boson model for anomalous rotational bands is proposed. In the rotational SU(3) limit,an asymptotic limit is discussed. Within the framework of the model several analytic relations for energies and electro-magnetic transition rates are derived.
文摘Within the framework of the U<SUB>sdpf</SUB>(16) interacting boson model (IBM), the effects of strong correlations of the dipole (p<SUP>?</SUP>-boson) and the octupole (f<SUP>?</SUP>-boson) degree of freedom on the positive-parity states of even-even nuclei in SU(3) limit are discussed. It is shown that configurations of an even number of many p- and f-bosons can not only be incorporated into the usual low-lying collective rotational bands, such as the ground state band, β- and γ-vibrational bands, but also naturally form the rotational bands, etc. These results are similar to that of U<SUB>sdg</SUB>(15)-IBM and in good agreement with the experimental data of the nucleus. Besides, several intraband E2 transition probabilities are given, which are consistent with that of U<SUB>sd</SUB>(6)-IBM.
