The investigation of nuclear level density and symmetry properties of some deformed 156-165 Dy isotopic nucleus by collective excitation modes

In this study, nuclear energy level density and nuclear energy level parameter and symmetry properties of some deformed 156-165Dy isotopic nucleus have been investigated by collective excitation modes. In calculation of energy level density, energy level density parameter and symmetry properties depent upon excitation energy of nuclei studied, a model was considered which relies on the fact that energy levels of deformed nuclei are equidistant and which relies on collective motions of their nucleons. The values of the calculate have been compared with those other literatureated studies, and the obtained results are generally in good agreement with those of compiled values for s-wave neutron resonance data.