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Nuclear quadrupole moments of 5/2- and 9/2- states in 169Ta

  • Vivek Kumar
  • P. Thakur
  • A. K. BhatiEmail author
  • R. P. Singh
  • R. K. Bhowmik
Original Article

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.

PACS.

21.10.Hw Spin, parity, and isobaric spin 21.10.Ky Electromagnetic moment 27.70.+q 150 ⩽ A ⩽ 189 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • Vivek Kumar
    • 1
  • P. Thakur
    • 1
  • A. K. Bhati
    • 1
    Email author
  • R. P. Singh
    • 2
  • R. K. Bhowmik
    • 2
  1. 1.Centre for Advanced Studies in PhysicsPanjab UniversityChandigarhIndia
  2. 2.Inter-University Accelerator CentreJNU CampusNew DelhiIndia

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