engleski

Clustering in light nuclei studied with 6He beam

The 6He nucleus is known to have a rather exotic halo structure, with two valence neutrons and an alpha-particle core. Recent development of low-energy radioactive beams enabled use of such a loose projectile in studies of other neutron-rich light nuclei through different transfer reactions. This talk will review some of the recent experimental studies performed with the 6He beam in Louvain-la-Neuve, Belgium. The results of measurements with the 1H, 2H, 4He, 6Li, 7Li, 9Be, 12C and 16O targets at the 6He beam energies E=17-35 MeV will be presented and discussed. In all experiments the detector set-up consisted of highly segmented silicon strip detector arrays covering a total solid angle higher than several sr. Elastic and inelastic scatterings, transfer reactions, quasi-free scattering and sequential decay processes were studied yielding interesting results on both cluster structure of different nuclei and reactions mechanism involved. For example, the conclusive evidence for existence of very deformed molecule-like states in 10Be was found via 6He+6, 7Li sequential decay reactions and 6He+4He resonant elastic scattering. Clustering of some 9Be and 14C states was also studied, as well as some exotic transfer reactions, like (6He, 8Be). In conclusion, the 6He beam was found to be an excellent choice for studies of light exotic nuclei.

clustering; light nuclei; 6He beam

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