Deformations of Ground-Bands in Ne²⁰, Mg²⁴and Si²⁸. I

Abstract

The analysis of elastic and inelastic electron scatterings from 0+, 2+, 4+ states in Ne20, Mg24 and Si28 is carried out within a framework of the rotational model. It is shown that a Y4 term is necessary in addition to the usual Y2 term in the single particle field in order to explain these transitions simultaneously. Intrinsic charge distributions are determined and quadrupole and hexadecapole charge moments of Ne20, Mg24 and Si28 are evaluated to be Q0 = 61, 67, 62 efm2 and H0 = 274, 45, 195 efm4, respectively.