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Title: One-photon annihilation in the Ps[sup [minus]] ion and the angular ([ital e][sup [minus]],[ital e][sup [minus]]) correlation in two-electron ions

Journal Article · · Physical Review A; (United States)
;  [1]
  1. Department of Chemistry, Queen's University, Kingston, Ontario, K7L 3N6 (Canada)

Various properties of the Ps[sup [minus]] ion in its bound ground ([sup 1][ital S]) state are calculated from a very accurate explicitly correlated wave function. From the expectation value for the triple delta function [l angle][delta][sub 321][r angle]=[vert bar][psi](0,0,0)[vert bar][sup 2] we estimate the one-photon annihilation rate [Gamma][sub [gamma]] in the Ps[sup [minus]] ion and show that [Gamma][sub [gamma]][much lt][Gamma][sub 3[gamma]][much lt][Gamma][sub 2[gamma]]. The statistical angular correlation coefficients are analyzed for the series of two-electron ions ([ital e][sup [minus]][ital e][sup [minus]][ital Z][sup +]) which includes T[sup [minus]], D[sup [minus]], H[sup [minus]], Mu[sup [minus]], and Ps[sup [minus]].

OSTI ID:
5008465
Journal Information:
Physical Review A; (United States), Vol. 49:5; ISSN 1050-2947
Country of Publication:
United States
Language:
English