11Li structure from experimental data

An analytical wave function for the 11Li ground state is constructed in a three-body approach. Its parameters are fixed from the fit to the set of most accurate experimental data and tested on all other available data. The obtained 11Li ground state wave function allows to describe all considered experimental data within their error bars simultaneously. The main contributions to the 11Li ground state wave function are found to come from 2(s1/2) (37%) and 2(p1/2) (47%) components.