Study of the B11+p Reactions

G. Dearnaley, G. A. Dissanaike, A. P. French, and G. Lindsay Jones
Phys. Rev. 108, 743 – Published 1 November 1957
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Abstract

This paper describes a detailed study of the B11(p, α0)Be8, B11(p, α1)Be8*(2α2), and B11(p, p) processes for the region of proton energies spanning the resonances at 0.67 Mev and 1.4 Mev. The measurements include excitation functions and angular distributions, together with the angular correlation between α1 and α2 as inferred from the alpha-particle energy spectrum in fixed geometry. The results are analyzed theoretically and are discussed in relation to the findings of other investigators. It is concluded that the complete body of data can be accounted for if the 0.67-Mev resonance (16.57-Mev state of C12) is (2-) and the 1.4-Mev resonance (17.22-Mev state of C12) is (1-), both formed mainly by s-wave protons; this would corroborate the preferred assignments previously suggested. The proton elastic scattering data imply that the ratio ΓpΓ is 0.5 for the 0.67-Mev resonance and 0.05 for the 1.4-Mev resonance.

  • Received 15 July 1957

DOI:https://doi.org/10.1103/PhysRev.108.743

©1957 American Physical Society

Authors & Affiliations

G. Dearnaley, G. A. Dissanaike*, A. P. French, and G. Lindsay Jones

  • Cavendish Laboratory, Cambridge, England

  • *Now at the Physical Laboratories, University of Ceylon, Colombo, Ceylon.
  • Now at the Physics Department, University of South Carolina, Columbia, South Carolina.
  • Now at Clifton College, Bristol, England.

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Vol. 108, Iss. 3 — November 1957

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