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Rotational structures in 123Cs

  • Kuljeet Singh
  • Z. Naik
  • R. Kumar
  • J. Goswamy
  • D. Mehta
  • N. SinghEmail author
  • C. R. Praharaj
  • E. S. Paul
  • K. P. Singh
  • R. P. Singh
  • S. Muralithar
  • N. Madhavan
  • J. J. Das
  • S. Nath
  • A. Jhingan
  • P. Sugathan
  • R. K. Bhowmik
Original Article

Abstract.

High-spin states in 123Cs, populated via the 100Mo ( 28Si, p4n) fusion-evaporation reaction at Elab = 130 MeV, have been investigated employing in-beam γ-ray spectroscopic techniques. Rotational bands, built on πg7/2, πg9/2 and the unique-parity πh11/2 orbitals, have been extended and evolve into bands involving rotationally aligned ν(h11/2)2 and π(h11/2)2 quasiparticles. A three-quasiparticle band based on the high-K πh11/2 ⊗ νg7/2 ⊗ νh11/2 configuration has also been observed. Total Routhian Surface (TRS) calculations have been used to predict the nuclear shape parameters ( β2, β4, γ) for the various assigned configurations. The assigned configurations have been discussed in the framework of a microscopic theory based on the deformed Hartree-Fock (HF) and angular-momentum projection techniques.

PACS.

21.10.Re Collective levels 23.20.Lv γ transitions and level energies 21.60.-n Nuclear structure models and methods 27.60.+j 90 ⩽ A ⩽ 149 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • Kuljeet Singh
    • 1
  • Z. Naik
    • 2
  • R. Kumar
    • 1
  • J. Goswamy
    • 1
  • D. Mehta
    • 1
  • N. Singh
    • 1
    Email author
  • C. R. Praharaj
    • 2
  • E. S. Paul
    • 3
  • K. P. Singh
    • 1
  • R. P. Singh
    • 4
  • S. Muralithar
    • 4
  • N. Madhavan
    • 4
  • J. J. Das
    • 4
  • S. Nath
    • 4
  • A. Jhingan
    • 4
  • P. Sugathan
    • 4
  • R. K. Bhowmik
    • 4
  1. 1.Department of PhysicsPanjab UniversityChandigarhIndia
  2. 2.Institute of PhysicsBhubaneswarIndia
  3. 3.Oliver Lodge LaboratoryUniversity of LiverpoolLiverpoolUK
  4. 4.Nuclear Science CentreAruna Asaf Ali MargNew DelhiIndia

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