Studying 12B via 8Li-α resonant scattering.

The inverse kinematics thick target scattering method (TTIK) has been used to study the ⁸Li elastic scattering on ⁴He in order to investigate ⁸Li-α cluster configurations in excited states of ¹²B. A ⁸Li beam, provided by the radioactive beam facility EXCYT, at E_beam = 30.6 MeV, passing through helium thick target, continuosly decreases its energy inducing elastic scattering starting from the initial energy down to zero. Four ΔE-E double stage silicon detector telescopes were used to detect the recoil α-particles coming from the scattering. Event by event time measurement between beam particles passing through a MCP detector and α-particles impinging on ΔE stage allows elastic from inelastic events discrimination, thus representing an improvement of the TTIK method. In this paper the used experimental technique and some preliminary results will be briefly described. [ABSTRACT FROM AUTHOR]