Response to “Comment on ‘Positron and positronium chemistry by quantum Monte Carlo. IV. Can this method accurately compute observables beyond energy?’ ” [J. Chem. Phys. 111, 108 (1999)

Abstract

We discuss the accuracy and applicability to molecular systems of the model proposed by G. G. Ryzhikh and J. Mitroy [J. Phys. B 31, 5013 (1998), ibid. 32, 2203 (1999)] to compute annihilation rate in positron-containing systems. Moreover, we propose small modifications to this model in order to improve its accuracy for molecular systems.