حساب الطاقات و احتمالية الانتقال رباعية القطب الكهربائية المختزلة لنظائر Hf 166,168,170 الزوجية- الزوجية

Abstract EN

The property of 166 170Hf even-even isotopes have been deduced, were the relation of the moment of inertia (23/ h2) as a function of the square of the energy of the emitted photon when the nucleus translate from the (I) state to the (I - 2) state (h2®2) ( back- bending curve) Also the relation of the gamma energy over spin (EY /1) as a function of the spin (I) (E-GOS) have been drawn, these curves indicated that these isotopes have a transition property (SU(3)-O(6), with the X(5) proprety for 166Hf isotopes.

To insure this property the calculation of the energy of different states in the yrast band has been done using the standard relation for the three types of nuclei depending on their property (rotation, y - soft and vibration).

Knowing the property of these isotopes, the calculation of electric quadrupole transition probability B(E2) has been done using Bohr and Mottelson model and the interacting boson model IBM-1 and compared with the experimental values.