|
|
 |
| |
|
|
|
Geometric structure features in 72-80Se isotopes |
|
|
|
PP: 147-152 |
|
|
|
doi:10.18576/jrna/050209
|
|
|
|
Author(s) |
|
|
|
Heiyam Najy Hady,
Mohsin Kadhim Muttalb,
|
|
|
|
Abstract |
|
|
| The geometric properties of the interacting boson model, interacting boson model-1and interacting boson model-2 have been used to perform studying of 72-80Se isotopes. The low –lying positive party states, energy ratios and the potential energy surface for 72-80Se have been investigated by using software package 𝐼𝐵𝑀𝑃 𝑎𝑛𝑑 𝐼𝐵𝑀 computer code for 𝐼𝐵𝑀 − 1 and Neutron Proton Boson 𝑁𝑃𝐵𝑂𝑆 software package for 𝐼𝐵𝑀 − 2. 𝑈(5) are the dominant in 72−80𝑆𝑒 with addition of a small effect of rotational parameters started from 74Se to 80Se isotopes, energy ratios in which 72𝑆𝑒 isotopes as the nearest isotopes to typical vibrational limit while 74−80𝑆𝑒 isotopes tend towards the rotational region lied on 𝑈(5)-
𝑆𝑈(3), leg of “Castens triangle”. 72𝑆𝑒 isotope potential energy curve has one minimum point at 𝛽 = 0, this is the same as spherical equilibrium shapes (a vibrational-like spectrum). The counter diagram represents as regular concentric, 74−80𝑆𝑒 isotopes that have evolved the deformation.
|
|
|
|
|
|
|
|
