<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>18</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>(γ,pn+np) cross section

K. G. McNeill; J. W. Jury; M. N. Thompson; B. L. Berman; R. E. Pywell

doi:10.1103/PhysRevC.43.489

${}^{18}O$ (γ,pn+np) cross section

K. G. McNeill, J. W. Jury, M. N. Thompson, B. L. Berman, and R. E. Pywell

Phys. Rev. C 43, 489 – Published 1 February 1991

Abstract

Measurement has been made of the ${}^{18}O$ (γ,pn+np) cross section. The cross section rises to a maximum of 1.2 mb at 27.5 MeV, approximately one-tenth of the total (γ,n) cross section there. The integrated cross section is correspondingly small (11.8 Mev mb to 43 MeV). As a result, the assignments of isospin distribution in the giant dipole resonance made by Woodworth et al. [Phys. Rev. C 19, 1667 (1979)] are unaffected by neglect of this reaction channel.