Abstract

A coupled-channels Born approximation formalism for breakup reactions recently proposed by Udagawa and Tamura is compared with the distorted-wave Born approximation formalism discussed by Ichimura, Austern, and Vincent. Udagawa and Tamura claimed that the distorted-wave Born approximation method erroneously includes pure inelastic scatterings. We show that their argument is invalid and that there is no asymptotically observable inelastic scattering in the distorted-wave Born approximation breakup formalism.

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