α resonance structure in B11 studied via resonant scattering of Li7+α

H. Yamaguchi, T. Hashimoto, S. Hayakawa, D. N. Binh, D. Kahl, S. Kubono, Y. Wakabayashi, T. Kawabata, and T. Teranishi
Phys. Rev. C 83, 034306 – Published 8 March 2011

Abstract

A new measurement of α resonant scattering on Li7 was performed over the excitation energy of 10.2–13.0 MeV in B11 at the low-energy RI beam facility CNS Radioactive Ion Beam separator (CRIB) of the Center for Nuclear Study (CNS), University of Tokyo. The excitation function of Li7+α at 180ˆ in the center-of-mass system was successfully measured for the first time with the inverse kinematics method, providing important information on the α cluster structure in B11 and the reaction rate of Li7(α,γ), which is relevant to the B11 production in the ν process in core-collapse supernovae. The excitation function of the Li7(α,p) reaction cross section for 11.7–13.1 MeV was also measured.

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  • Received 28 December 2010

DOI:https://doi.org/10.1103/PhysRevC.83.034306

©2011 American Physical Society

Authors & Affiliations

H. Yamaguchi*, T. Hashimoto, S. Hayakawa, D. N. Binh, D. Kahl, and S. Kubono

  • Center for Nuclear Study, University of Tokyo, RIKEN Campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Y. Wakabayashi

  • Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan

T. Kawabata

  • Department of Physics, Kyoto University, Kita-Shirakawa, Kyoto 606-8502, Japan

T. Teranishi

  • Department of Physics, Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-8581, Japan

  • *yamag@cns.s.u-tokyo.ac.jp

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Vol. 83, Iss. 3 — March 2011

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