Deformation energy in nuclear matter calculation, (2)

This paper concerns the deformation energy of heavy nuclei such as the ones in actinide region. The nuclear matter calculation based on the energy density relation of the matter was performed. In the first paper, the deformation energy formation of heavy nuclei largely deformed under the assumption of the trapezoidal distribution of nuclear matter density instead of the Fermi type distribution was reported, and the contour of map of the deformation energy of U-236 was presented. However, the results have not always been favourable to explain the experiment in the strong deformation. In the present calculation, the matter density was revised, and the large change of the contour map was seen. From the obtained potential energy curve, it can be said that the nucleus may have the experience of the deformation which has three minima and three saddles. Accordingly it may have three isomeric states. (Kato, T.)