Spectroscopy of high lying resonances in 9Be produced with radioactive 8Li beams.

We present the results of the ⁸Li(p,α)⁵He and ⁸Li(p,p)⁸Li reactions measured at the RIBRAS (Radioactive Ion Beams in Brazil) system. The experiment was realized in inverse kinematics using a thick [CH₂]_n polyethylene target and an incident ⁸Li beam, produced by RIBRAS. Using the thick target method, the complete excitation function could be measured between E_cm = 0.2 - 2.1 MeV, which includes the Gamow peak energy region. The excitation function of the ⁸Li(p,α)⁵He reaction, populating resonances between 16.888 and 19.0 MeV in ⁹Be, was obtained[1] and the resonances were fitted using R-matrix calculations. This study shed light on spins, parities, partial widths and isospin values of high lying resonances in ⁹Be. The measurement of the resonant elastic scattering ⁸Li(p,p)⁸Li populating resonances in the same energy region can constrain the resonance parameters. Preliminary results of the elastic scattering are also presented. [ABSTRACT FROM AUTHOR]