Studying 124-128Ba transitional nuclei in the IBM framework

Abstract EN

Many properties of nuclear structure for even-even isotopes have been investigated with and .They examined carefully with benefit from continuously updating of nuclear decay schemes.

Low-lying energy levels for even-even positive parity states, mixed symmetry states (MSS), reduced electric quadruple transitions probabilities , branching ratios, reduced magnetic dipole transitions probability, ratio, reduced electric monopole transitions probability and mixing ratio and potential energy surface have been studied.

In the framework of noted the competition between the two parameters ( and ) in 124-128Ba isotopes were the increases of a0 associated with decreases of a2 which mean that the γ-unstable features were continuous increases with opposite of rotational properties , in IBM-2 χπ and χν were (-1.3 and around 0.7) which signified similarity with IBM-1 expected.

124-128Ba isotopes described to be transitional nuclei , transitional between SU(3) and O(6) features.