On the correctness of various approaches in the extraction of the nucleus parameters on example of analysis of the twostep gammacascades in 163Dy compound nucleus
Abstract
The modelfree analysis of experimental data in the intensities of twostep cascades into 163Dy shows, that the basically special features of the cascade gammadecay of its compoundstate completely correspond to those observed in other nuclei. Thus, the density of the levels in this nucleus with good precision it is reproduced as sum of three, five, sevenquasiparticle excitations with the tenfold, as the minimum, by an increase due to vibration type excitations. The greatest changes in the sum of the radiation strength functions of dipole primary gammatransitions correlate with a change in the number of excitable quasiparticles. Accordingly, model presentations about the radiation strength functions of larger, than for those existing, accuracy must consider as a quantity of excited quasiparticles, so the presence of the vibration type excitations of all possible types. Moreover, the reliable picture of the studied process can be obtained only from the approximation of the distributions of the intensities of cascades in the function of energies of their primary gammatransitions.
 Publication:

arXiv eprints
 Pub Date:
 September 2007
 arXiv:
 arXiv:0709.4304
 Bibcode:
 2007arXiv0709.4304K
 Keywords:

 Nuclear Experiment
 EPrint:
 9 pages, 1 table, 5 figures