Some Electromagnetic Transition Properties of Odd-A Europium Isotopes

In this work, we analyze the positive parity of states of odd-A Eu isotopes within the framework of interacting boson fermion model (IBFM-1). The result of an IBFM-1 multilevel calculation with the 3s(1/2), 2d(3/2), 2d(5/2), and 1g(7/2) single particle orbits is reported for the positive parity states of the odd-A Eu isotopes. Also, an IBM-1 calculation is presented for the low-lying states in the even-even (152-154)Sm core nucleus. The energy levels and B(E2) transition probabilities are calculated and compared with the experimental data. It is found that the calculated positive parity low spin state energy spectra of the odd-A Eu isotopes agree quite well with the experimental data.