A study of electromagnetic characteristics of 124,126,128,130,132,134,136Ba isotopes performed in the framework of IBA

It was pointed out that the level scheme of the transitional nuclei ^{124,126,128,130,132,134,136}Ba also can be studied by both characteristics (IBM-1 and IBM-2) of the interacting boson model and an adequate point of the model leading to E2 transitions is therefore confirmed. Most of the δ(E2/M1) ratios that are still not known so far are stated and the set of parameters used in these calculations is the best approximation that has been carried out so far. It has turned out that the interacting boson approximation is fairly reliable for the calculation of spectra in the entire set of ^{124,126,128,130,132,134,136}Ba isotopes.