Title: NUCLEAR STRUCTURE CALCULATONS FOR DEFORMED NUCLEI

The 660-Mev proton beam from the Dubna synchrocyclotron was used to produce rare earth isotopes which were then separated chemically from the target and from each other. The following methods were used in the investigation of the rare earth nuclides; mass spectroscopy, gamma -ray spectrometry with various instruments, gamma - gamma coincidence measurements, beta /sup +/ spectroscopy with various instruments, conversion line Spectroscopy, electron coincidence measurements, and x-ray spectrometry. The region Nd-Os was thus investigated. A brief review is given concerning the theory of deformed nuclei, followed by tables of rotational levels, half lives, high-lying levels, spins, single particle levels,more » transition multi-polarities, and deformation parameters. These are also presented systematically as a function of atomic number by means of graphs. A thorough review of nuclear structure in this part of the periodic table is given. (T.T.T.)« less

The question of the validity of nuclear vibrations is discussed, and an attempt is made to understand the relationships between the collective states in spherical and deformed even-even nuclei. The approach is largely an empirical one employing (1) a collection and systemization of all experimental rotational and vibrational states in the regions of interest, (2) an attempt to calculate additional beta and alpha vibrations for deformed eveneven nuclei, and (3) a summary of the Coulomb excitation of vibrational states whose Coulomb excitation cross sections should be enhanced if these states are really collective in nature. (auth)