| Issue |
EPJ Web Conf.
Volume 356, 2026
5th International Conference on Condensed Matter and Applied Physics (ICC 2025)
|
|
|---|---|---|
| Article Number | 02022 | |
| Number of page(s) | 11 | |
| Section | Applied Physics | |
| DOI | https://doi.org/10.1051/epjconf/202635602022 | |
| Published online | 05 March 2026 | |
https://doi.org/10.1051/epjconf/202635602022
TPSM Analysis of Structural Evolution in 109Sb
1 Department of Physics and Astronomical Sciences, Central University of Jammu, Samba, Jammu and Kashmir, ( 181143), India
2 Government Degree College, Shopian, Jammu and Kashmir, ( 192303), India
3 Department of Physics, Islamic University of Science and Technology, Awantipora, ( 192122), India
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
** e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 5 March 2026
Abstract
The structural evolution of the odd-mass nucleus 109Sb has been investigated using the Triaxial Projected Shell Model (TPSM). This nucleus, located close to the Z = 50 shell closure, serves as an ideal system for investigating the interplay between single-particle motion and collective rotation. Using angular-momentum projected quasiparticle configurations built on a triaxially deformed basis, we analyze the yrast and yrare band structures and compare the calculated energies with available experimental data. The TPSM results reproduce the observed band crossings and the overall evolution of the yrast and yrare bands reasonably well. A detailed examination of the dynamic moment of inertia, J2 and the reduced electric quadrupole transition probabilities reveals a gradual loss of collectivity with increasing spin for the yrast band, consistent with experimental observations. The present study provides a microscopic understanding of the structural evolution and decreasing collectivity in this nucleus.
© The Authors, published by EDP Sciences, 2026
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