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Multi-Phonon $γ$-Vibrational Bands and the Triaxial Projected Shell Model

Yang Sun·Kenji Hara·Javid A. Sheikh·Jorge G. Hirsch·Victor Velázquez·Mike Guidry
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Abstract

We present a fully quantum-mechanical, microscopic, unified treatment of ground-state band and multi-phonon $γ$-vibrational bands using shell model diagonalization with the triaxial projected shell model. The results agree very well with data on the g- and $γ$-band spectra in $^{156-170}$Er, as well as with recently measured $4^+$ 2-phonon $γ$-bandhead energies in $^{166}$Er and $^{168}$Er. Multi-phonon $γ$-excitation energies are predicted.

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Yang Sun, Kenji Hara, Javid A. Sheikh, Jorge G. Hirsch, Victor Velázquez, Mike Guidry. 1999-11-17. Multi-Phonon $γ$-Vibrational Bands and the Triaxial Projected Shell Model. https://doi.org/10.1103/physrevc.61.064323

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