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Microscopic study of low-lying yrast spectra and deformation systematics in neutron-rich 98–106Sr isotopes

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Abstract

Variation-after-projection (VAP) calculations in conjunction with Hartree-Bogoliubov (HB) ansatz have been carried out for A = 98–106 strontium isotopes. In this framework, the yrast spectra with J Π ≥ 10+, B(E2) transition probabilities, quadrupole deformation parameter and occupation numbers for various shell model orbits have been obtained. The results of the calculation for yrast spectra give an indication that it is important to include the hexadecapole-hexadecapole component of the two-body interaction for obtaining various nuclear structure quantities in Sr isotopes. Besides this, it is also found that the simultaneous polarization of p 3/2 and f 5/2 proton subshells is a significant factor in making a sizeable contribution to the deformation in neutron-rich Sr isotopes.

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Authors and Affiliations

  1. Department of Physics, University of Jammu (J&K), Jammu, 180 006, India

    Anil Chandan, Suram Singh, Arun Bharti & S. K. Khosa

Authors
  1. Anil Chandan
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  2. Suram Singh
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  3. Arun Bharti
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  4. S. K. Khosa
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Correspondence to Arun Bharti.

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Chandan, A., Singh, S., Bharti, A. et al. Microscopic study of low-lying yrast spectra and deformation systematics in neutron-rich 98–106Sr isotopes. Pramana - J Phys 73, 657–668 (2009). https://doi.org/10.1007/s12043-009-0135-3

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  • DOI: https://doi.org/10.1007/s12043-009-0135-3

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