Measurement of the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Li</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>8</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>(α,n<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mo>)</mo></mrow><mrow><mn>11</mn></mrow></msup></mrow></math>B reaction cross section at energies of astrophysical interest

R. N. Boyd; I. Tanihata; N. Inabe; T. Kubo; T. Nakagawa; T. Suzuki; M. Yonokura; X. X. Bai; K. Kimura; S. Kubono; S. Shimoura; H. S. Xu; D. Hirata

doi:10.1103/PhysRevLett.68.1283

Measurement of the ${}^{8}{Li}$ (α,n $)^{11}$ B reaction cross section at energies of astrophysical interest

R. N. Boyd, I. Tanihata, N. Inabe, T. Kubo, T. Nakagawa, T. Suzuki, M. Yonokura, X. X. Bai, K. Kimura, S. Kubono, S. Shimoura, H. S. Xu, and D. Hirata

Phys. Rev. Lett. 68, 1283 – Published 2 March 1992

Abstract

The cross section for the ${}^{8}{Li}$ (α,n $)^{11}$ B reaction, which is crucial to predictions of primordial nucleosynthesis in inhomogeneous models, has been measured using the radioactive-beam facility of the Institute for Physical and Chemical Research (RIKEN). The reaction cross section to all allowed ${}^{11}B$ states was found to be larger than that to just the ${}^{11}B$ ground state by about a factor of 5.

Received 16 September 1991

DOI:https://doi.org/10.1103/PhysRevLett.68.1283

Authors & Affiliations

R. N. Boyd, I. Tanihata, N. Inabe, T. Kubo, T. Nakagawa, T. Suzuki, M. Yonokura, X. X. Bai, K. Kimura, S. Kubono, S. Shimoura, H. S. Xu, and D. Hirata

Institute for Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-01 Japan
Department of Physics and Department of Astronomy, Ohio State University, Columbus, Ohio 43210
Institute of Atomic Energy, P.O. Box 275, The People’s Republic of China
Faculty of Science, Kyushu University, 6-10-1 Hakozaki, Fukuoka, Fukuoka 812, Japan
Institute for Nuclear Study, University of Tokyo, 3-2-1 Midori-cho, Tanashi, Tokyo 188, Japan
Faculty of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
Institute for Modern Physics, Academia Sinica, No. 57, Nanchang Road, Lanzhou, The People’s Republic of China
Instituto de Estudos Avancados–Centro Técnico Aeroespacial, São José dos Campos, São Paulo, Brazil