Electron scattering from the 3.65 MeV (0 +, T = 1) state in 6Li at high momentum transfer

Abstract

The form factor ofthe 3.56MeV(0 +, T = 1) state of 6Li has been measured for momentum transfers q = 1.0–3.0 fm −1, and the 2.18 MeV (3 +, T = 0) and 5.37 MeV (2 +, T = 1) states have been measured up to q = 2.5 fm −1. The 3.56 MeV form factor is analysed in terms of a phenomenological shell model with l = i valence nucleons. The radial wave functions are found to have a greater radial distribution than given by the harmonic oscillator, more closely resembling Woods-Saxon functions. The M1 form factor is found to decrease at high momentum transfer somewhat more slowly than the models predict. A technique for determining the Mλ transition current density based on the Fourier-Bessel analysis is developed and applied to the M1 transition. The M1 transition current density is obtained within a moderate error band and compared with the harmonic oscillator and Woods-Saxon densities. The M1 radiative width is 8.18 ± 0.25 eV, in agreement with previous measurements.