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The 2γ annihilation rate for positronic lithium–hydride [LiH,e+] was computed with the quantum Monte Carlo method [Mella, Morosi, and Bressanini, J. Chem. Phys. 111, 108 (1999)]. A model in which the positron and residual ion compete to attract the most loosely bound valence electron provides an explanation of the small annihilation rate (1.2×109 s−1).

journal of chemical physics online/the journal of chemical physics/journal of chemical physics

Comment on “Positron and positronium chemistry by quantum Monte Carlo. IV. Can this method accurately compute observables beyond energy” [J. Chem. Phys. <b>111</b>, 108 (1999)]

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)]