Interacting Boson-fermion-fermion Model Research Articles

IBFFM yrast states in odd-odd nuclei associated withO(6) andSU(3) limits

In the Interacting Boson-Fermion-Fermion Model (IBFFM) for odd-odd nuclei the yrast states are calculated for\(\tilde j_\pi = \tilde h_{1 1/2} ,\tilde j_v = \tilde i_{1 3/2} \), proton-neutron configurations coupled to theO(6) andSU(3) boson core. The results are discussed in terms of the strongly coupled/ decoupled band type criterion and in comparison to the peaceful and conflicting case of asymmetric rotor model.

Analogs of Gallagher-Moszkowski bands in IBFFM ? A relation to spectrum-generating supersymmetry?

The quantal analogs of the Gallagher-Moszkowski bands in the Interacting boson-fermion-fermion model (IBFFM) withSU (3) boson core are associated with the exact quantum numberKjp+jn and approximate quantum numberK-¦jp-jn¦ of IBFFM. For characteristic ratiosГ/δ it is shown that theKc=0 band in even-even IBM system, theK=jp andK=jn bands in the corresponding odd-even (IBFM) systems and theK=jp+j band in the corresponding odd-odd IBFFM system exhibit the supermultiplet pattern.

High spin states of odd-odd nuclei in the interacting boson-fermion-fermion model

The interacting boson-fermion-fermion model (IBFFM) has been applied to high-spin states in 194Au. Schematic calculations have also been performed for the Tl isotopes.