Inelastic longitudinal electron scattering C2 form factors in 58Ni

Abstract EN

Inelastic longitudinal electron scattering form factors for the excitation of 2+ in 58Ni nucleus have been studied through nuclear shell model of the (p3/2,p1/2,1f5/2) configurations.

Effective transition operators relevant to the model space are derived by considering particle-hole excitation from the core orbits and via the model space orbits into the higher orbits with 2?? for C2 transition within the framework of a first-order perturbation theory.

Using F5PVH potential as an effective interaction to generate the model space wave function.

The simple harmonic oscillator (HO) potential is used to generate the single particle wave functions.

Discarded space (core orbits + higher configuration orbits) will be included as a first order correction which is the so called core polarization effect.

Modern realistic interaction of the two body Michigan sum of three range Yukawa potential (M3Y-P2) and Gogny have been adopted as a residual interactions to couple the particle-hole pair.

The investigated nucleus is considered to be consisting of 56Ni core nucleus plus extra valence nucleons represented by two neutrons distributed over fp-shell.

The obtained theoretical results had been compared with available experimental data.