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The projected shell model study of the reduced electromagnetic transition probability ratio and back-bending for \(A=\) 150–158 isotopes of Sm nucleus

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Abstract

The yrast band diagram and the reduced magnetic dipole-to-electric quadruple transitions ratio, B(M1)/B(E2),  are simulated using a Fortran code and constructed based on the projected shell model (PSM). Calculations using the PSM are applied to study the back-bending phenomena of neutron-rich even–even isotopes of Sm, namely \(^{150,152,154,156,158}\)Sm. The obtained B(M1) /B(E2) ratios show that around the band-crossing spin, their values are decreased. This phenomenon occurs due to a change in the structure of energy bands. Calculated results reproduce well the variation of moments of inertia as a function of rotational frequency in the presented back-bending figures for the isotopes under consideration. Finally, simulated results are compared with the available experimental data. Good agreement has been achieved from this comparison.

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Authors and Affiliations

  1. Department of Physics, Science Faculty, University of Mazandaran, P.O. Box 47415-416, Babolsar, Iran

    M R Pahlavani & M Teymoori

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  1. M R Pahlavani
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  2. M Teymoori
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Correspondence to M R Pahlavani.

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Pahlavani, M.R., Teymoori, M. The projected shell model study of the reduced electromagnetic transition probability ratio and back-bending for \(A=\) 150–158 isotopes of Sm nucleus. Pramana - J Phys 96, 107 (2022). https://doi.org/10.1007/s12043-022-02353-8

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  • DOI: https://doi.org/10.1007/s12043-022-02353-8

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