Triaxiality in N=32 Isotones with Covariant DFT

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5th International Conference on Engineering and Natural Science (ICENS), Prague, Czech Republic, 12 - 16 June 2019, pp.400-403

  • Publication Type: Conference Paper / Full Text
  • City: Prague
  • Country: Czech Republic
  • Page Numbers: pp.400-403
  • Karadeniz Technical University Affiliated: No


Investigation for deformation and collective modes of nuclei is hot topic in nuclear physics both experimentally and theoretically. Recent two decades more information on shape of nuclei far from nuclear stability line has been obtained via heavy-ion evaporation-reactions by many lab. Accurate excitation energies, their ratios and transition strengths are used for investigation of geometrical shape of nuclei. On the other hand there can be found experimental difficulties for yielding neutron rich and proton rich nucleus and successful theoretical model studies can help for better understanding of shape of these nuclei. Nuclei along the N = Z region, between proton number Z = 28 to Z = 50 is known as to exhibit rapid shape changes and some nuclei have been determined as to be having triaxial symmetry. By regarding this point, covariant density functional theory with density dependent interactions (DD-ME2) have been employed for N=32 isotones starting from Ni to Se nucleus in the present study. For this purpose, potential energy surfaces of each nucleus have been carried out to discussing shape of nucleus in this isotonic chain. 64Ge has been found as to exhibit triaxiality in its ground state as in agreement with experimental indications. Also, detailed discussion on the shape of other nuclei in this isotonic chain is presented in this study. Furthermore some nuclear properties of considered nuclei such as binding energy, charge radii and quadrupole moments are given in detail.