N-N-N* model calculations for experimental η-mesic 3He searches

The possibility for the existence of the exotic NNN* states is explored with the objective of calculating the N* momentum distribution inside such nuclei. Even though the latter is an essential ingredient for the analysis of the experimental data on the pd -> ppp pi(-) and pd -> pnn pi(+) reactions aimed at finding an eta-mesic He-3, the data analysis is usually performed by approximating the N* momentum distribution by that of a nucleon. Here, we present calculations performed by solving the three-body Faddeev equations to obtain the momentum distribution of the N* inside possible (N*)(+)np, (N*)(0)np and (N*)(+)-d states. The N* momentum distributions are found to be much narrower than those of the nucleons and influence the data selection criteria.