Abstract.
The nuclear spectroscopic quadrupole moments for the πh9/25/2-, 1/2-[541] and the πh11/29/2-, 9/2-[514] isomeric states in 169Ta have been measured employing the time differential perturbed angular-distribution technique following the nuclear reaction 159Tb(16O, 6nγ)169Ta at beam energy 104 MeV. The ratio of the intrinsic quadrupole moments \(Q_{0}(K^{\ensuremath{\pi}} = 5/2^{-})/Q_{0}(K^{\ensuremath{\pi}} = 9/2^{-})\) has been derived as 1.87(13) from the measured quadrupole precession frequencies of the corresponding states. The model-independent analysis of the equilibrium deformation indicates strong prolate- and oblate-driving nature of the 1/2-[541] and 9/2-[514] orbitals in 169,171Ta isotopes, respectively.
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D. Schwalm
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Kumar, V., Thakur, P., Bhati, A.K. et al. Nuclear quadrupole moments of 5/2- and 9/2- states in 169Ta. Eur. Phys. J. A 26, 311–314 (2005). https://doi.org/10.1140/epja/i2005-10182-3
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DOI: https://doi.org/10.1140/epja/i2005-10182-3