Scattering of 20.4 MeV polarized protons from even-mass zinc isotopes

Abstract

Measurements are reporled on polarized-proton scattering from the even-mass zinc isotopes at 20.4MeV beam energy. The elastic and first-order inelastic processes are represented well by standard theory. The analysis of the two-phonon multiplets presents difficulties which may indicate a change in the nuclear structure between isotopes or the occurrence of an energy-dependent interfering process.NUCLEAR REACTIONS 64,66.68,mZn (polarized p,p') E = 20.4MeV; measured o(e), A(0); deduced optical model parameters, deformation strengths for 2 : and 3; states. DWBA calculations;for -Zn and "Zn also cc.

New Evaluation of Neutron Nuclear Data for Zinc Isotopes

“…0 is the energy scale factor of the level energies, 20 denotes the nuclear softness of 2 -vibration, a 32 is B 3 =B 2 ð 30 = 20 Þ 2 , B is the mass parameter for multipolarity , denotes the nuclear softness of octupole vibration, determines the non-axiality of octupole deformation, 0 is the equilibrium quadrupole non-axiality, and 2 n denotes the energy splitting of a doubly degenerate level due to the tunneling effects. The details of these parameters are explained by Sukhovitskiĩ et al 25) The used values of 20 were obtained from the analyses of inelastic scattering of protons [28][29][30][31] and were very small in comparison with the 2 values compiled by Raman et al…”