Electroexcitation of collective states in 64Zn nuclei

The spectra of the scattering of electrons with energies 150, 225 and 280 MeV on a 64Zn nucleus are measured. The form factors of three earlier uninvestigated levels with excitation energies Esub(x) of 4.3; 5.5 and 7.0 MeV are obtained in the range of momenta transferred 0.54-1.44 F-1. In the improved Born approximation from the data analysis it has been obtained that the levels with Esub(x)=5.5 and 7.0 MeV are excited as E4 transitions, and the level with Esub(x)=4.3 MeV as a mixture of E2 and E4 multipoles