6Li electromagnetic form factors and phenomenological cluster models

Abstract

The longitudinal form factors of the ground and 2.18 MeV (3 +, T = 0) states, and the transverse form factors of the 3.56 MeV (0 +, T = 1) and 5.37 MeV (2 +, T = 1) states of 6Li are compared with the predictions based on fully antisymmetrized α-d and t-τ cluster models. The longitudinal form factors are adequately described by the α-d model, but the transverse form factors seem to be more consistent with a t-τ model which is close to the shell-model limit. Estimates are made for the ground state t and α spectroscopic factors. The 3.56 MeV M1 transition current density is calculated for both models and compared with experiment.