Packed cluster model for photofission aspects of the giant resonance

This work shows that when a gamma-ray resolves the order of a packed cluster, the higher energy peak of giant resonance results. Nuclear scission at forming a packed cluster in each fissioning side, confirms that it is essential for nuclear formation and locates the giant resonance peak at about 14 MeV. For resolved order of subclusters, the lower energy peak of giant resonance results. At final state, the order of packed cluster is lowered by a shell release whose collective quantum order gives the fission states at packed cluster resolution. The substates of the equally rotating shell yield two resolved fission states for the two subcluster resolutions. Scission level, at subcluster resolution yields Th-232 peak at 6.5 MeV. By packed cluster model, the elongation of the fissioning nuclear shape occurs at the energy level of nuclear temperature and the Coulomb energy from scission is close to kinetic energy of fragments. Fission from packed cluster, gives fragment rotational angular momentum normal to fragment motion confirming the average fragment angular momentum from neutron fission and expecting lower photofission fragment angular momentum at photon energy less than 11 MeV. (orig.)