Abstract
A method recently presented for calculation of double-charge transfer cross sections is applied to this reaction. The method neglects correlation between the two transferred particles. The amplitude for two-particle exchange is then obtained as the square of the amplitude for single-particle exchange. The one-particle exchange amplitude is calculated in Born approximation, and in a modified Born approximation (modified to correct for nonorthogonality), and the two-particle exchange cross section is obtained from these. Neither calculation should be good at the energies at which the cross section was measured, but the two calculations straddle the measured values. The corrected one appears to give a good agreement at the higher measured energies.
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