2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86711By comparing respectively the interaction between 3He atoms and the neutron-neutron one, we examine the possibility for both fermionic systems to form small clusters.Contributed talk to 17th International IUPAP Conference on Few-Body Problems in Physics, Durham, North Carolina, 5-10 June 2003. Published in the proceedings (Elsevier, 2004) pp. S106-S108Atomic PhysicsNuclear Theorytext