Preliminary study of the 19~F(~7Li, ~7Be)~(19)O reaction at 52 MeV with MAGNEX

摘要

The ~(19)F(~7Li,~7Be)~(19)O charge-exchange reaction at 52.2 MeV incident energy has been studied at the INFN-LNS laboratory in Catania (Italy) using the MAGNEX spectrometer. Thanks to an algebraic ray-reconstruction technique and to a high-performing focal plane detector, high-resolution 190 energy spectra and angular distributions have been extracted. A theoretical analysis of the reaction in the framework of the Charge-Exchange Quasiparticle Random Phase Approximation (CEX-QRPA) has been done. The results of Distorted-Wave Born Approximation (DWBA) calculations in a double folding scheme have been compared to the experimental angular distribution of the transition to the 190 state at 1.47 MeV state and show a remarkable agreement both in magnitude and shape.