Positive and negative parity states of 226-236Th isotopes

Authors

Ali A. Mezban, Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq.
Falih H. Al-Khudair, Department of Physics, College of Education for Pure Sciences, University of Basrah, Basrah, Iraq.Follow

Abstract

The level scheme of the ^226-236Th nuclei is analyzed using the Interacting Boson Model (IBM-1). The ground state band (g. s.-band), beta band (β-band), gamma band (γ-band) have been described in the sd model space. To calculate the negative parity energy levels, the model space is extended to sdf by adding the f-boson (L=3). A sequence of states in energy bands up to 3.5 MeV has been obtained. The decay of negative states below 1 MeV built on an octupole vibration modes is investigated. The transition probabilities in-band and inter-band are calculated using the wave function of the levels. The potential energy surfaces (PES) values have been plotted to describe the nuclear shape. The model calculations are consistent with the available observed results

Recommended Citation

Mezban, Ali A. and Al-Khudair, Falih H. (2025) "Positive and negative parity states of 226-236Th isotopes," Karbala International Journal of Modern Science: Vol. 11 : Iss. 3 , Article 6.
Available at: https://doi.org/10.33640/2405-609X.3412

Creative Commons License

This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.