A new measurement of proton resonance scattering on 7 Be was performed up to the center-of-mass energy of 6.7 MeV using the low-energy RI beam facility CRIB (CNS Radioactive Ion Beam separator) at the Center for Nuclear Study of the University of Tokyo. The excitation function of 7 Be+p elastic scattering above 3.5 MeV was measured successfully for the first time, providing important information about the resonance structure of the 8 B nucleus. The resonances are related to the reaction rate of 7 Be(p,γ) 8 B, which is the key reaction in solar 8 B neutrino production. Evidence for the presence of two negative parity states is presented. One of them is a 2 − state observed as a broad s-wave resonance, the existence of which had been questionable. Its possible effects on the determination of the astrophysical S-factor of 7 Be(p,γ) 8 B at solar energy are discussed. The other state had not been observed in previous measurements, and its J π was determined as 1 − .
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