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Rotational structures in 123Cs

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Abstract.

High-spin states in 123Cs, populated via the 100Mo ( 28Si, p4n) fusion-evaporation reaction at E lab = 130 MeV, have been investigated employing in-beam γ-ray spectroscopic techniques. Rotational bands, built on πg 7/2, πg 9/2 and the unique-parity πh 11/2 orbitals, have been extended and evolve into bands involving rotationally aligned ν(h 11/2)2 and π(h 11/2)2 quasiparticles. A three-quasiparticle band based on the high-K πh 11/2 ⊗ νg 7/2 ⊗ νh 11/2 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.

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Authors and Affiliations

  1. Department of Physics, Panjab University, 160 014, Chandigarh, India

    Kuljeet Singh, R. Kumar, J. Goswamy, D. Mehta, N. Singh & K. P. Singh

  2. Institute of Physics, 751 005, Bhubaneswar, India

    Z. Naik & C. R. Praharaj

  3. Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, Liverpool, UK

    E. S. Paul

  4. Nuclear Science Centre, Aruna Asaf Ali Marg, 110 067, New Delhi, India

    R. P. Singh, S. Muralithar, N. Madhavan, J. J. Das, S. Nath, A. Jhingan, P. Sugathan & R. K. Bhowmik

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  1. Kuljeet Singh
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Correspondence to N. Singh.

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Singh, K., Naik, Z., Kumar, R. et al. Rotational structures in 123Cs. Eur. Phys. J. A 25, 345–354 (2005). https://doi.org/10.1140/epja/i2005-10131-2

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