Neutron correlations in ~6He viewed through nuclear break-up

摘要

Nuclear break-up as a tool to study neutron correlations is investigated both theoretically and experimentally. First a time dependent theory going beyond mean field has been developed and shows that correlations between nucleons can be probed through nuclear break-up. Secondly, nuclear break-up of ~6He on ~(208)Pb target was studied at 20 A.MeV using a secondary beam of ~6He produced by the SPIRAL facility at GANIL. From the correlation function, a strong contribution of the di-neutron configuration of ~6He is found.