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arXiv · 2603.07157

Microscopic investigation of $\gamma~$ vibrational band structures in odd-mass nuclei

Uzma Jahangir·S. P. Rouoof·S. Jehangir·G. H. Bhat·J. A. Sheikh·N. A. Rather
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Abstract

A systematic investigation of the high-spin band structures observed in $^{103,105,107,109}$Nb and $^{103,105,107,109}$Tc nuclides is performed using the triaxial projected shell model (TPSM) approach. For $^{103,105}$Nb isotopes, four bands have been populated with the lowest three bands corresponding to yrast, $\gamma$ and 2$\gamma$ bands. The nature of the fourth observed band has remained unresolved as it has been shown from the transition intensity ratios that this band cannot correspond to the expected 3$\gamma$ band. It is demonstrated in the present work that this fourth band is the second $\gamma$ band, resulting from the combination, $K=K_0-2$ with $K_0$ being the "$K$" value of the parent configuration. The excitation energy and other properties of this band structure are predicted for all the studied nuclides.

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Uzma Jahangir, S. P. Rouoof, S. Jehangir, G. H. Bhat, J. A. Sheikh, N. A. Rather. 2026-03-07. Microscopic investigation of $\gamma~$ vibrational band structures in odd-mass nuclei. https://arxiv.org/abs/2603.07157

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