خصائص حالات الطاقة وحسابها باستخدام (IBM-1)‎ و(IVBM)‎ للايزونات 180 Hf, 182 W, 184 Os, 186 Pt

Abstract EN

The positive ground-state band (GSB) of Hf W Os Pt 180 182 184 186,,, isotones for N = 108 has been calculated using the interacting bosons model (IBM-1), and interacting vector boson model (IVBM), while the negative-parity band (NPB) of Hf W Pt 180 182 186,,, has been calculated using the (IVBM).

since (IBM-1) have different calculation according to the characteristics of each nucleus, these characteristics were identified using different method, Plotting the relation of the moment of inertia (2 ) against the rotational frequency of the emitted photons () during nuclear transition between different energy states were determined, the calculation shows that Hf W Os 180 182 184,, nucleus do not have any backbending effect which indicates that its characteristics have not changed, while Pt 186 have a back-bending which indicate that a change in their characteristics.

also using the relation between different excited states energies to their preceding values, one can determine the characteristic of each nucleus which shows a rotational characteristics for Hf W Os 180 182 184,, nucleus, while Pt 186 have transitional characteristics between the two vibrational and rotational challenges, to get to know the characteristics of the nucleus more accurately the relation of the gamma energy over spin (E I ) as a function of the spin (I) E-GOS was drown, the calculation showed pure rotational characteristic for Hf W Os 180 182 184,, nucleus, While the Pt 186 nuclei have gamma soft O(6) characteristic, when staggering phenomena between (NPB) and (GSB) has been studied, the contour plot show that Hf W Pt 180 182 186,, nucleus did not reach zero value which refer to the constancy of their characteristics.