Research Article

Nuclear Gamma-soft Character in ¹²⁸Ba

I. Hossain
King Abdulaziz University, Saudi Arabia
* Corresponding author
Hewa Y. Abdullah
Tishk International University, Iraq
I. M. Ahmed
Mosul University, Iraq
Fadhil I. Sharrad
Kerbala University, Iraq
DOI icon 10.24018/ejphysics.2021.3.3.54

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Submitted 2021-02-17
Published 2021-06-06

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Article Main Content

We report the properties of gamma soft O(6) of 128Ba isotones with neutron N = 72 using Interacting Vector Boson Model (IVBM), interacting Boson Model (IBM-1), Bohr-Mottelson Model (BM), and Doma-El-Gendy (D-G) relation. The first energy level ( ) and ratio  have been investigated which show that 128Ba has gamma-soft character. The curves Eγ/Vs.J of E-GOS of even 128Ba nucleus were compared with the standard curves of vibrational, gamma soft and rotational limits. The staggering factors were studied of available measured data of 128Ba nucleus. The yrast levels of this isotope are calculated by the model of VBMI, IBM-1, BM and D-G and they were compared by measured data. The negative parity band of 128Ba was calculated by IVBM and BM model and compared with experimental values.

Keywords: ¹²⁸Ba BM, D-G, Ground states band E-GOS, IBM-1, IVBM, Staggering Factor

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