6th International Conference on Nuclear Structure and Related Topics (NSRT)

The H-1(Li-6,Be-6)n charge-exchange reaction and the H-3(He-8,p)He-10 two-neutron transfer reaction were recently carried out at the ACCULINNA fragment separator (FLNR, Dubna) to populate the ground and excited states of Be-6 and He-10 nuclei, respectively. The Be-6 E-T spectrum (E-T is the Be-6 energy above its He-4+p+p decay threshold) was obtained with high statistics and described by the well-known 0(+) ground state of Be-6 at E-T = 1.37 MeV, the 2(+) state at E-T = 3.05 MeV and a broad structure extending from 4 to 16 MeV which could be interpreted as the isovector soft dipole mode associated with the Li-6 ground state. In the He-10 case the 0(+) ground state was found at about 2.1(2) MeV (Gamma similar to 2 MeV) above the He-8+n+n breakup threshold. Angular correlations observed for He-10 decay products show prominent interference patterns allowing to draw conclusions about the structure of low-energy excited states: 1(-) (E-T similar to 5 MeV) and 2(+) (E-T > 6 MeV).