Measurement of the H(38S,p′) reaction at forward angles including 0 degree Original Research Article

Collective motions of β unstable nuclei are interesting because of the uniqueness of shapes different from those of stable nuclei. Measurements of such mode of the giant resonances will supply fruitful of information unaccessible from the previous experiments. In order to access region of the sufficiently high excited energy with small momentum transfer for β unstable nuclei, we newly constructed a magnetic spectrometer for 0 degree scattered recoil particles in inverse kinematics. By means of the spectrometer we measured the H(38S,p′) reaction at forwarding angles including θCM=0° at View the MathML source as the first challenge of this method. As an experimental result, a bump is confirmed at around Ex=17 MeV. Direct evidences for ISGMR of the β unstable nuclei have not yet been derived. It is hoped that the E0 strength co-exists in the observed bump.