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Nuclear spectroscopy of 40–48Ca isotopes

  • Physics of Nuclei and Elementary Particles
  • Published:
Moscow University Physics Bulletin Aims and scope

Abstract

The nature of the excited states of the 40–48Ca isotopes is analyzed in the region of energies below the nucleon separation threshold. A peculiar feature of the 40–48Ca isotopes is the predominant filling of the 1f 7/2 neutron shell. Interaction between the neutrons of the 1f 7/2 shell and the nucleons of the 1d2s core results in formation of multiparticle excited states with a few vacancies in the 1d2s shell. The energies of single-particle proton states in the 40–48Ca isotopes are calculated using the Hartree-Fock potential with the Skyrme potential. The manner in which the energy of single-particle states varies, the magic numbers N = 20, 28 are formed, and the charge and nucleon density vary in the 40–48Ca isotopes as the neutron number increases from 20 to 28 is shown. Coherent interactions of the 1f 7/2 shell and 1d2s core nucleons also manifest themselves in the region above the nucleon separation threshold, leading to the configuration and isospin splitting of the GDR.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, Moscow, 119991, Russia

    B. S. Ishkhanov & M. E. Stepanov

  2. Skobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, Russia

    B. S. Ishkhanov, M. E. Stepanov & T. Yu. Tretyakova

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  1. B. S. Ishkhanov
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  2. M. E. Stepanov
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Correspondence to M. E. Stepanov.

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Original Russian Text © B.S. Ishkhanov, M.E. Stepanov, T.Yu. Tretyakova, 2014, published in Vestnik Moskovskogo Universiteta. Fizika, 2014, No. 6, pp. 3–22.

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Ishkhanov, B.S., Stepanov, M.E. & Tretyakova, T.Y. Nuclear spectroscopy of 40–48Ca isotopes. Moscow Univ. Phys. 69, 433–456 (2014). https://doi.org/10.3103/S0027134914060095

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