Nuclear astrophysics projects at the low-energy RI beam separator CRIB

Abstract

Studies on nuclear reactions relevant for astrophysics have been performed using the radioactive-isotope (RI) beams at the low-energy RI beam separator CRIB, operated by Center for Nuclear Study (CNS), the University of Tokyo. A type of measurement to study astrophysical reactions at CRIB is by the elastic resonant scattering with the thick-target method in inverse kinematics. We introduce the alpha resonant scattering with Be-7 beam, related to the astrophysical Be-7(alpha,gamma) reactions, which is relevant in the hot p-p chain and nu p-process in supernovae. Other alpha resonant scattering measurements with S-30, Be-10, O-15, and Ne-18 beams have been performed at CRIB, using the thick-target method.