Nuclear Astrophysical studies using low‐energy RI beams at CRIB

CRIB(CNS Radioactive Ion Beam separator) is a low‐energy RI beam separator at the Center for Nuclear Study (CNS) of the University of Tokyo, used for various studies covering nuclear‐astrophysicaltopics. An application of the RI beam at CRIBfor the astrophysicalstudies is a new measurement of the proton resonance scattering on 7Be. The measurement was performed up to the excitation energy of 6.8 MeV, ans the excitation functionabove 3.5 MeV was successfully measured for the first time, providing important information about the reaction rate of 7Be(p,γ)8B, which is the key reaction in the solar 8B neutrino production. A preliminary result of the 7Be+p experiment is presented.