Cross sections for breakup of ${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ into ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ and $\alpha$ during scattering from ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$ were calculated in terms of the distorted wave Born approximation. The inclusive ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ cross section observed in the ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$(${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$) reaction was then found to be fitted very well by the sum of this breakup contribution and that of the $\alpha$-transfer reaction calculated in our previous work.

NUCLEAR REACTIONS ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$(${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$) breakup reactions, calculated $\frac{d^2\sigma }{d\Omega \mathrm{dE}}$; $E\left({}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}\right)=149-262\mathrm{}$ MeV, direct reaction mechanism for heavy-ion reaction.

• Received 29 May 1979

DOI:https://doi.org/10.1103/PhysRevC.20.1949